ANNUAL CLIMATOLOGICAL SUMMARY FOR FLINT - 2001
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
1 PM EST WED JAN 23 2002
...THIRD WARMEST YEAR (TIED 1991) EVER RECORDED IN FLINT SINCE 1942...
OVERVIEW...
2001 WAS AN ABNORMALLY WARM YEAR ACROSS FLINT AND SOUTHEAST LOWER
MICHIGAN...ESPECIALLY EARLY IN THE YEAR (JANUARY AND FEBRUARY)...
AND AGAIN LATE IN THE YEAR (NOVEMBER AND DECEMBER). THESE FOUR MONTHS 
ALONE ACCOUNTED FOR MUCH OF THE ANNUAL ABOVE NORMAL DEPARTURE IN FLINT. 
BOTH THE AVERAGE HIGH (58.9/+2.2) AND AVERAGE LOW (39.7/+1.9) CAME IN 
AROUND TWO DEGREES ABOVE NORMAL. THE AVERAGE TEMPERATURE OF 49.3 
ACTUALLY TIED FOR THIRD PLACE WITH 1991 FOR WARMEST YEARS SINCE 1942. 
IT IS VERY INTERESTING TO NOTE THAT OUT OF THE TOP 12 WARMEST YEARS IN 
FLINT SINCE 1942...FIVE HAVE OCCURRED SINCE 1990. THEY ARE: 50.9/1998 
(FIRST PLACE)...49.3/1991 AND NOW 49.3/2001 (THIRD PLACE)... 49.2/1990 
(SIXTH PLACE) AND FINALLY 48.4/1999 (12TH PLACE). 
DURING 2001...THE RECORD BOOKS GATHERED LITTLE DUST AS TEMPERATURE 
AND/OR PRECIPITATION RECORDS WERE FREQUENTLY UPDATED FOR VARIOUS 
RECORDS BROKEN FOR INDIVIDUAL DAYS...MONTHS AND NOW...YEAR.  AFTER A 
COLD AND BRUTAL ENDING TO 2000...THE YEAR OF 2001 STARTED OUT ON A 
RATHER MILD AND UNEVENTFUL NOTE (AS FAR AS SNOW) DURING THE REMAINDER 
OF THE WINTER OF 2000-2001. BASICALLY...ABOUT TWO THIRDS OF THE WINTER 
SNOW FELL IN THE MONTH OF DECEMBER (2001). AFTER...JUST LIGHT AMOUNTS 
OF SNOW FELL JANUARY THROUGH MARCH AND WERE ACCOMPANIED BY MILD 
TEMPERATURES. IN FACT...JANUARY THROUGH MARCH MADE THE TOP TWENTY 
SNOWLESS CATEGORY FOR THEIR RESPECTIVE MONTH. STILL...IN SPITE OF THOSE 
"SNOWLESS" MONTHS...NEARLY ALL REGIONS OF SOUTHEAST LOWER MICHIGAN 
RECEIVED ABOVE NORMAL SNOW FOR THE WINTER. THE MILD WEATHER PATTERN 
ESTABLISHED EARLY IN THE YEAR CONTINUED THROUGHOUT SPRING. AND... 
DESPITE A FEW COLD SETBACKS LATE MARCH AND EARLY APRIL...THE SPRING WAS 
OVERALL...WARM WITH WETTER CONDITIONS RETURNING AS THE SPRING UNFOLDED. 
SO WET WAS MAY THAT IT PLACED IN SIXTH PLACE FOR WETTEST MAY IN FLINT 
WITH 5.35 INCHES. THE BEGINNING OF SUMMER (JUNE INTO EARLY JULY) WAS 
RATHER FICKLE WITH SEE-SAWING TEMPERATURES COMMONPLACE WHICH RESULTED 
IN FREQUENT PERIODS OF RAIN. A COLD SNAP EARLY JUNE AND THEN AGAIN 
EARLY JULY WAS FOLLOWED...AT TIMES...BY RECORD WARMTH. AS AN EXAMPLE... 
IN JULY...TWO RECORD LOWS AND ONE RECORD HIGH WERE SET DURING THE MONTH 
AS THE TEMPERATURE EXTREMES WERE EXCEEDED. A RELATIVELY DRY AND WARM TO 
HOT PERIOD HELD SWAY FROM MID JULY THROUGH AUGUST...LEADING TO RECORDS 
IN THE TOP TEN FOR DRIEST AND WARMEST FOR AUGUST. AN ABRUPT CHANGE IN 
THE JET STREAM BY MID SEPTEMBER BROUGHT IN MUCH COOLER AND WETTER 
CONDITIONS AS AUTUMN GOT UNDERWAY. HOWEVER...WHILE EARLY FALL WAS 
SOMEWHAT COOL AND WET...IT ACTUALLY DID NOT FORETELL THE EXCEPTIONALLY 
MILD AND PLEASANT WEATHER THAT WAS ENJOYED MID-LATE FALL. THE YEAR 
CLOSED THE EXACT OPPOSITE IT OPENED WITH A VERY MILD DECEMBER WITH 
SLIGHTLY BELOW SNOWFALL. THIS WAS IN STARK CONTRAST TO THE COLD AND 
HEAVY SNOW COVER OVER THE REGION AT THE YEAR'S OPEN...NEW YEARS DAY. 
                                                                 
************
JANUARY 2001       
************
...AFTER A BITTER COLD START WITH RECORD LOWS...JANUARY THAWS...
...18TH WARMEST JANUARY ON RECORD...
...15TH DRIEST AND EIGHTH SNOWLESS JANUARY ON RECORD...
JANUARY OF 2001 WAS ALMOST TOTALLY OPPOSITE OF DECEMBER 2000 WITH 
MUCH TAMER WEATHER OVER THE AREA. WHILE THE MONTH DID INDEED START 
OUT ON A VERY COLD NOTE WITH RECORD LOWS ON THE 1ST AND 2ND /-10 AND 
-12 RESPECTIVELY/...RELATIVELY MILDER WEATHER DOMINATED MUCH OF THE 
REMAINDER OF THE MONTH. TEMPERATURES CYCLED FROM BELOW NORMAL TO ABOVE 
NORMAL THROUGHOUT THE MONTH...BUT WITH A DECIDED PREFERENCE FOR ABOVE. 
IN THE END... THE AVERAGE TEMPERATURE OF 24.9 WAS 3.4 ABOVE NORMAL AND 
CAME IN AT 18TH PLACE FOR WARMEST JANUARIES ON RECORD. 
THERE WAS VERY LITTLE IN THE WAY OF STORMINESS AND UNLIKE ITS MONTHLY 
PREDECESSOR...JANUARY'S WEATHER WAS UNUSUALLY BENIGN...RELATIVELY MILD 
AND EVEN LACKED NOTABLE OR MAJOR PRECIPITATION EVENTS. IN FACT...UP 
UNTIL THE 23RD ONLY .14 INCH HAD FALLEN. HAD IT NOT BEEN FOR A FEW DAYS 
NEAR THE CLOSE OF THE MONTH /29-30TH/...JANUARY WOULD HAVE COME IN 
CONSIDERABLY DRIER. ON THOSE DAYS...OVER A HALF OF AN INCH /.58/ FELL 
AND THAT WAS OVER HALF THE MONTHLY TOTAL. STILL...EVEN WITH THE ADDED 
LATE EDITION OF PRECIPITATION...THE TOTAL OF 1.03 PLACED JANUARY IN 
15TH SPOT FOR DRIEST JANUARIES ON RECORD.
NOWHERE WAS THE LIGHT MONTHLY PRECIPITATION MORE REPRESENTATIVE THAN 
IN THE LACK OF SNOWFALL. THE 5.1 INCHES THAT FELL PUT THIS JANUARY IN 
EIGHTH PLACE FOR FOR SNOWLESS JANUARIES ON RECORD SINCE 1942. 
*************
FEBRUARY 2001
*************
...SECOND WETTEST FEBRUARY ON RECORD SINCE 1942...
...12TH SNOWLESS FEBRUARY ON RECORD...
...TIES WITH 1997 FOR 17TH WARMEST FEBRUARY...
...SNOWMELT AND HEAVY RAIN LEAD TO WIDESPREAD RIVER AND 
   STREAM FLOODING...
NORMALLY THE DRIEST MONTH OF THE YEAR...THIS FEBRUARY WAS ANYTHING BUT 
DRY AND CONTAINED TWO DISTINCTIVE VERY WET STORMS THAT SHOT THE MONTH 
INTO SECOND PLACE FOR WETTEST FEBRUARY ON RECORD. THESE TWO STORMS ALONE 
ACCOUNTED FOR NEARLY 90 PERCENT OF THE MONTHLY PRECIPITATION. THE FIRST 
OF THE POWERFUL STORMS ARRIVED ON THE SCENE ON THE 8TH INTO THE 9TH.
THE STORM SURGED OUT OF THE MIDWEST AND INTO THE WESTERN LAKES REGION. 
AHEAD OF THE STORM...VERY MILD AIR AND HEAVY RAIN FLOODED INTO THE AREA 
FROM THE GULF OF MEXICO. THE TEMPERATURE JUMPED TO 54 DEGREES ON THE 
9TH AND TIED THE OLD RECORD SET IN 1966. STRONG WIND GUSTS INTO THE 40S 
BLEW THROUGH THE AREA BEHIND THE STORM LATE ON THE 9TH INTO THE 10TH. 
ALL TOGETHER... 2.31 INCHES OF PRECIPITATION WAS DUMPED ON THE AREA. 
THIS...ON TOP OF A QUICKLY MELTING HEAVY SNOWPACK...RESULTED IN 
WIDESPREAD RIVER...STREAM AND LOWLAND FLOODING AND NUMEROUS RIVER 
WARNINGS WERE ISSUED. 
THE SECOND POWERHOUSE STORM FOLLOWED A SIMILAR TRACK INTO THE UPPER 
MIDWEST LATE IN THE MONTH /24-26TH/. THIS STORM BROUGHT MORE OF A MIX 
BAG OF PRECIPITATION WITH HEAVY RAIN...FREEZING RAIN...SNOW...VERY 
STRONG WINDS AND EVEN THUNDERSTORMS. POWER OUTAGES WERE SCATTERED 
ACROSS THE AREA FROM BOTH THE FREEZING RAIN ON SATURDAY AND POWERFUL 
WIND THAT FOLLOWED SUNDAY. THE WIND GUSTED TO 48 MPH AT FLINT BISHOP 
AIRPORT EARLY SUNDAY AFTERNOON. AGAIN...AS A RESULT OF OVER AN INCH OF 
RAIN /1.05/ AND SOME SNOWMELT...RIVER FLOOD WARNINGS WERE ISSUED FOR 
PORTIONS OF THE CASS AND SHIAWASSEE RIVERS. AT THE MONTH'S CLOSE...
THE WEATHER ONCE AGAIN BECAME TRANQUIL...WHILE PROGRESSIVELY TURNING 
COLDER...AS A LARGE POLAR HIGH PRESSURE DOMINATED.
EVEN THOUGH THERE WAS A SURPLUS OF RAINFALL DURING FEBRUARY...THERE 
WAS A NOTABLE DEFICIT IN SNOWFALL. SINCE FEBRUARY WAS MILDER THAN ON 
AVERAGE...ONLY FIVE INCHES OF SNOW WAS TOTALED DURING THE MONTH. 
THIS WAS ABOUT HALF THE AVERAGE GENERALLY SEEN IN FEBRUARY AND PLACED 
IT IN 12TH PLACE FOR SNOWLESS FEBRUARY'S.
**********
MARCH 2001
********** 
...MARCH CAME IN LIKE A LAMB AND LEFT THAT WAY... 
...SECOND DRIEST MARCH ON RECORD IS ALSO COOLER THAN NORMAL...
...13TH SNOWLESS MARCH ON RECORD... 
...ARCTIC BLAST LATE IN THE MONTH BRINGS ON RECORD COLD...
NO LION WAS SEEN AT MARCH'S OPENING NOR ITS ENDING BUT THE LION DID 
ROAR A FEW TIMES DURING THE MONTH. THE FIRST WEEK OF THE MONTH ARRIVED 
PLEASANT ENOUGH WITH MAINLY DRY WEATHER AND ABOVE NORMAL TEMPERATURES. 
IN FACT...DURING THE WEEK ONLY .03 INCH PRECIPITATION (.7 SNOW) FELL. 
DURING THE SECOND WEEK...INTERMITTENT PRECIPITATION WAS MORE THE RULE 
THAN THE EXCEPTION...BUT IT WAS STILL LIGHT WITH ONLY ABOUT A THIRD OF 
AN INCH /1.6 SNOW/ TOTALED. 
THE SECOND HALF OF THE MONTH WAS EVEN DRIER WITH ONLY A COUPLE OF DAYS 
MEASURING PRECIPITATION. SOME OF THE MOST DELIGHTFUL WEATHER OF MARCH 
SET IN A FEW DAYS FOLLOWING THE STORM AND HERALDED THE ARRIVAL OF 
SPRING IN STYLE. DRY WEATHER ALONG WITH CONSIDERABLE DAILY SUNSHINE 
GRACED THE REGION FROM THE 18TH-23RD. TEMPERATURES PUSHED UP INTO THE 
50S SEVERAL OF THOSE DAYS AND THE BREATH OF SPRING WAS FELT. ALAS...IT 
DID NOT LAST...WHEN WINTER RETURNED WITH A VENGEANCE AS AN UNUSUALLY 
STRONG BLAST OF ARCTIC AIR PUSHED INTO THE GREAT LAKES DURING THE LAST 
WEEKEND OF THE MONTH. CONSEQUENTLY...HIGH TEMPERATURES ROSE ONLY INTO 
THE MID TO UPPER 20S ON THE 25TH AND 26TH (NORMAL HIGHS ARE IN THE MID 
40S). THE COLD AIR WAS ACCOMPANIED BY SNOW SHOWERS AND SQUALLS THAT 
LEFT A QUICK INCH OR TWO OF SNOW IN BURSTS. THE COLD AIR...ALONG WITH A 
BRIEF SNOW COVER AND MAINLY CLEAR SKIES...SET US UP FOR A RECORD LOW 
TEMPERATURE OF 4 DEGREES THE MORNING OF THE 26TH. THIS RECORD EASILY 
ELIMINATED THE OLD RECORD OF 8 SET JUST 5 YEARS AGO IN 1996. MANY AREAS 
HAD NOT SEEN TEMPERATURES THAT COLD SINCE MID JANUARY! THE LATE MONTH 
COLD SNAP MANAGED TO SECURE A ONE AND A HALF DEGREE BELOW NORMAL 
TEMPERATURE DEPARTURE FOR THE MONTH. THE WEATHER GRADUALLY DID 
IMPROVE...HOWEVER...AS TEMPERATURES MODERATED BACK TO SEASONAL LEVELS 
BY THE MONTH'S CLOSE. 
THE OVERALL UNUSUALLY DRY WEATHER PLACED THIS MARCH IN SECOND PLACE FOR 
DRIEST SINCE 1942. SNOWFALL WAS ALSO WELL BELOW THE AVERAGE GENERALLY 
SEEN IN MARCH WITH ONLY 3.8 INCHES OF THE 7.5 AVERAGE FALLING. THE LACK 
OF SNOW MADE IT THE 13TH SNOWLESS MARCH IN FLINT SINCE 1942.
**********
APRIL 2001
**********
...BUSY STORM TRACK BRINGS SNOW...STORMS AND MILD WEATHER...
...10TH WARMEST APRIL ON RECORD...
AS THE SPRING ATTEMPTED TO SETTLE FIRMLY IN PLACE DURING APRIL...THE 
JET STREAM REMAINED QUITE ACTIVE DURING THE MONTH AS SURGES OF POLAR 
AIR FROM CANADA ROUTINELY MET UP WITH THE WARMER WINDS OF THE SOUTH.
ON THE FIRST OF APRIL...MOTHER NATURE PULLED AN APRIL FOOLS JOKE ON 
THE RESIDENTS OF SOUTHEAST MICHIGAN AS A STORM SYSTEM OVER OHIO
BROUGHT GENERALLY AN INCH OR TWO OF SNOW AROUND THE FLINT AREA. AREAS
FURTHER NORTH...HOWEVER...SAW LESSER AMOUNTS...OR NONE AT ALL BEING TOO 
FAR NORTH OF THE MAIN SYSTEM. THE 2000-01 SEASONAL SNOWFALL AVERAGED 
ABOVE TO WELL ABOVE NORMAL ACROSS THE REGION. FLINT'S SNOWFALL TOTAL OF 
53.4 INCHES EXCEEDED THE AVERAGE OF 45.1 BY 8.3...WHILE IN SAGINAW THE 
TOTAL OF 67.8 BEAT THE AVERAGE OF 46.0 BY NEARLY TWO FEET /21.8 INCHES/!
A COMBINATION LOW PRESSURE SYSTEM AND WARM FRONT CONVERGED ON CENTRAL
LOWER MICHIGAN ON THE 6TH AND BROUGHT A BULLSEYE OF HEAVY RAIN TO THE 
FLINT AREA. THE .88 OF AN INCH THAT FELL WAS THE MOST FOR THAT CALENDAR
DAY SINCE RECORDS BEGAN IN 1942. AFTER THE PASSAGE OF THE WARM FRONT...
TEMPERATURES PUSHED UP INTO THE 70S THE FOLLOWING WEEKEND /7-8TH/ BUT 
NO RECORD HIGHS WERE SET. THE FRONT SANK SOUTH ONCE AGAIN AND THEN 
BECAME STATIONARY ON THE MORNING OF THE 9TH...TRIGGERING SOME SEVERE 
WEATHER. WHILE MUCH OF THE ROUGHEST WEATHER STAYED SOUTH OF REGION...
THERE WERE A FEW REPORTS OF PEA TO DIME SIZE HAIL AROUND THE FENTON 
AREA...EAST ACROSS FLINT TO LAPEER. 
AN INTENSE LOW PRESSURE PASSING TO OUR WEST CAUSED A HIGH WIND ADVISORY 
TO BE ISSUED EARLY ON 12TH. THE STRONGEST WIND GUSTS WERE CLOCKED IN 
THE 40S AND 50S MPH. A GUST TO 51 MPH OCCURRED AT TRI CITIES AIRPORT... 
WHILE FLINT BISHOP AIRPORT AND BAD AXE BOTH RECORDED 48 MPH.
A STRONG POLAR FRONT SURGED THROUGH THE AREA ON THE BACKSIDE OF THE DEEP
LOW ON THE 14TH WITH MUCH COLDER AIR FLOODING THE REGION MID-MONTH. AS A 
RESULT...HIGH TEMPERATURES WERE ONLY IN THE 40S TO AROUND 50 FROM THE 
15-17TH. AS THE JET STREAM CONTINUED TO WHIP-SAW ACROSS THE COUNTRY...
MUCH WARMER AIR AGAIN SURGED BACK NORTH INTO THE REGION FROM THE 21ST
TO THE 23RD...WHEN THE HIGHEST TEMPERATURE OF THE MONTH /79/ FIRST
OCCURRED. THIS WARM WEATHER TOO WAS FOLLOWED BY ANOTHER SQUALL OF SEVERE 
WEATHER AS A COLD FRONT PLOWED INTO THE AREA LATE ON THE 23RD. WHILE 
ONLY SCATTERED THUNDERSTORMS WERE EMBEDDED IN THIS SQUALL LINE...VERY 
IMPRESSIVE WIND GUSTS INTO THE 50S AND 60S MPH WERE CONTAINED IN THE 
LINE. 
DURING THE LAST WEEK OF APRIL...THE WEATHER QUIETED DOWN AS SEVERAL 
PLEASANT SPRING DAYS TOOK HOLD. THIS STRONG SURGES OF INTERMITTENT 
WARMTH HELPED MAKE THIS APRIL THE TENTH WARMEST APRIL SINCE 1942.
********
MAY 2001
********    
...SIXTH WETTEST MAY ON RECORD...
...17TH WARMEST MAY ON RECORD...DESPITE A COOL SNAP LATE IN THE MONTH...
...MID-MONTH TORNADO EVENT HEADLINES MAY'S SEVERE WEATHER...
...POLAR ORIGINATING UPPER LOW PRESSURE SYSTEM BECAME A MAJOR WEATHER
   NUISANCE MEMORIAL WEEKEND...
THE MONTH OF MAY BEGAN ON A SUMMER-LIKE NOTE WITH HIGH TEMPERATURES
PUSHING UP INTO THE MID 70S TO LOWER 80S THROUGH THE 4TH. IN FACT...
A HIGH TEMPERATURE OF 82 ON THE 2ND TIED AND SUPERSEDED THE OLD RECORD 
SET FIRST IN 1966. THE WARM WEATHER CONTINUED UNTIL A TEMPORARY SHIFT 
IN THE JET STREAM TO THE NORTHWEST THE WEEKEND OF THE 12-13TH... 
BROUGHT A BRIEF COOL SNAP TO THE REGION. A RESURGENCE OF WARM WEATHER 
AFTER...CONTINUED THE ABOVE NORMAL TEMPERATURE DEPARTURE ACCUMULATING 
AND BY THE 21ST...TEMPERATURES AVERAGED ABOUT SIX DEGREES ABOVE NORMAL.
AFTER THE 21ST HOWEVER...THERE WAS A NOTABLE CHANGE IN THE UPPER WIND 
PATTERN AS AN UNUSUALLY DEEP AND COOL (FOR MAY) UPPER LOW PRESSURE 
REPLACED THE RIDGE THAT HAD PRETTY MUCH DOMINATED THE REGION FOR MUCH 
OF THE MONTH.  THE MOST NOTABLE SEVERE WEATHER OF THE MONTH OCCURRED 
DURING THIS TIME. SEVERE STORMS BLOSSOMED NEAR A WARM FRONT AS IT 
SURGED NORTH THROUGH THE REGION. A SEVERE STORM SPAWNED A WEAK TORNADO 
IN EXTREME SOUTHEAST GENESEE COUNTY ABOUT 2 MILES WEST OF FENTON. THE 
TORNADO THEN TRACKED OFF TO THE NORTHEAST JUST OVER 7 MILES INTO 
SOUTHWEST LAPEER COUNTY. YET ANOTHER TORNADO THAT CHURNED ACROSS MAINLY 
LIVINGSTON COUNTY...ENDED JUST INSIDE THE GENESEE COUNTY LINE. 
ONCE THE UNSEASONABLY COOL UPPER LOW TOOK HOLD OF THE REGION...BEGINNING
ON THE 22ND RIGHT INTO MEMORIAL DAY WEEKEND...THE WARM DAYS OF MAY 
BECAME JUST A MEMORY.  AS THE UPPER LOW WOBBLED ITS WAY FROM THE 
UPPER MIDWEST INTO THE GREAT LAKES...THE CONSEQUENCE WAS SURPLUS OF 
INSTABILITY WHICH CREATED SEVERAL ROUNDS OF SHOWERS AND STORMS...
SOME SEVERE...THROUGHOUT THE WEEKEND....ALONG WITH PLENTY OF CLOUDS 
AND COOL MID APRIL-LIKE TEMPERATURES. 
THE WEATHER REMAINED COOL THROUGH THE END OF THE MONTH WITH TEMPERATURES 
DIPPING INTO THE MID 30S TO LOWER 40S THE MORNING OF THE 30TH. THE COOL
WEATHER LATE IN THE MONTH TOOK A BIG BITE OUT OF THE ABOVE NORMAL 
TEMPERATURE DEPARTURE ACCUMULATED EARLIER BUT STILL...THIS MAY ENDED 
UP THE 17TH WARMEST /TIED WITH 1949/. THE FREQUENT EPISODES OF RAIN 
WERE ENOUGH TO PUSH THE RAINFALL TOTAL TO 5.35 INCHES...MAKING THIS MAY 
THE SIXTH WETTEST MAY ON RECORD. 
*********
JUNE 2001
********* 
...SEVERE WEATHER REMAINED ACTIVE DURING THE MONTH...
TEMPERATURES THE FIRST WEEK OF JUNE AVERAGED BELOW NORMAL AS THE 
NORTHWESTERLY FLOW ALOFT THAT BECAME ESTABLISHED LATE IN MAY... 
CONTINUED RIGHT THROUGH THE FIRST WEEK OF JUNE. HIGH TEMPERATURES 
REMAINED IN THE 60S THROUGH THE 6TH...AVERAGING 10 TO 14 DEGREES BELOW 
NORMAL. ALONG WITH THE COOL WEATHER...FREQUENT PERIODS OF SHOWERS AND 
THUNDERSTORMS ACCOMPANIED YET ANOTHER UPPER LOW PRESSURE FROM THE 
1ST-3RD. WARMER WEATHER MOVED BACK INTO THE REGION DURING THE SECOND 
WEEK AND SPAWNED A FEW STRONG TO SEVERE STORMS ACROSS THE SAGINAW 
VALLEY AND THUMB REGION ON THE 9TH AND 10TH. A WEAK TORNADO /F0/ 
TOUCHED DOWN NEAR FERGUS AND DAMAGE WAS LIMITED TO SOME TREES AND 
CROPS.
OVERALL...ANY WARM OR HOT SPELLS THAT DID DEVELOP DURING THE MONTH 
WERE ROUTINELY CHILLED BY A PROGRESSION OF VIGOROUS COLD FRONTS. 
ANOTHER EXAMPLE OF THIS PLAYED OUT MID MONTH WHEN A MORE POTENT WARM 
UP PUSHED TEMPERATURES UP TO AROUND 90 ON THE 13TH-15TH. THE HEAT 
INDEX WELL UP INTO THE 90S DURING THE PERIOD. A HIGH OF 90 ON THE 15TH 
CAME WITHIN THREE DEGREES OF THE RECORD /93-1988/. INTERESTINGLY...IT 
WAS AS FAR BACK AS EARLY MAY THE LAST TIME TEMPERATURES EVEN ROSE INTO 
THE 80S WITH NO 80 DEGREE OR ABOVE DAYS SEEN FROM MAY 3RD /82/ TO JUNE 
10TH /80/. WITH THE ARRIVAL OF THE HEAT AND HUMIDITY...SO TOO DID 
ANOTHER ROUND OF SEVERE WEATHER AS A STRONG COLD FRONT PLOWED ACROSS 
THE AREA ON THE 15TH. SEVERE THUNDERSTORMS BROKE OUT DURING THE LATE 
AFTERNOON AND EVENING WITH SOME SCATTERED REPORTS OF MAINLY TREE 
DAMAGE. BEHIND THIS FRONT...TEMPERATURES COOLED OFF BACK INTO THE 60S 
AND 70S FROM THE 20TH TO THE 23RD. 
TYPICAL SUMMER WEATHER WITH WARM TEMPERATURES...INCREASING HUMIDITY AND 
PLENTY OF SUNSHINE DOMINATED THE LAST WEEK OF THE MONTH. 
*********
JULY 2001
*********
 
...TENTH DRIEST JULY ON RECORD...
...OVERALL COOL THE FIRST HALF...WARM THE SECOND...
...TWO RECORD LOWS AND ONE RECORD HIGH...
WHILE RAINFALL WAS SOMEWHAT SCATTERED THROUGH THE MONTH...OVERALL 
JULY 2001 WAS DRY. ACTUALLY NOTABLE RAINFALL WAS LIMITED TO JUST TWO 
DAYS DURING THE MONTH WHEN ISOLATED THUNDERSTORMS DUMPED HEAVY RAIN
AT BISHOP AIRPORT. A STORM ON THE 17TH UNLOADED .70 INCH OF RAIN...
THEN A SECOND STORM PRODUCED NEARLY A HALF INCH /.47/ ON THE 29TH. 
THOSE DAYS ASIDE...THE REST OF THE MONTH SAW ONLY .42 INCH OF RAIN 
FALL AND FOR THE ENTIRE MONTH...JUST SIX DAYS HAD MEASURABLE RAIN. THE 
DRIEST PERIOD AROUND FLINT COMMENCED ON JUNE 23RD AND CONTINUED THROUGH 
JULY 16TH. DURING THIS BETTER THAN THREE WEEK PERIOD...ONLY .14 INCH OF 
RAIN FELL AND ON JUST TWO DAYS.
THIS JULY'S SLIGHTLY ABOVE NORMAL TEMPERATURE DEPARTURE IS A BIT 
MISLEADING. ABNORMALLY COOL WEATHER PUSHED SOUTH OUT OF CANADA 
AT JULY'S BEGINNING. TEMPERATURES ON THE MORNING OF THE 2ND DROPPED
DOWN TO 40 DEGREES AT FLINT BISHOP AIRPORT. THIS BROKE THE OLD RECORD 
OF 43 SET JUST SIX YEARS AGO IN 1995. FURTHER NORTH IN THE THUMB 
REGION...SOME AREAS CRATERED INTO THE MID TO UPPER 30S /BAD AXE 35/. 
THEN FOUR DAYS LATER ON THE 6TH...ONCE AGAIN THE MERCURY BOTTOMED-OUT 
TO NEAR 40 /41 DEGREES/. THIS 41 DEGREE READING ALSO BROKE THE OLD 
RECORD OF 45 SET BACK IN 1972. IN TEN OUT OF THE FIRST 15 DAYS OF THE 
MONTH...TEMPERATURES AVERAGED BELOW NORMAL AND THUS...BY MID MONTH THE 
MEAN TEMPERATURE AVERAGED NEARLY 3 DEGREES BELOW NORMAL. THIS BELOW 
NORMAL DEPARTURE...HOWEVER...WAS GRADUALLY ERASED DURING THE SECOND 
HALF OF THE MONTH WHEN ABOVE NORMAL TEMPERATURES DOMINATED. IN FACT...
SO MUCH ABOVE NORMAL WAS THE TEMPERATURE ON THE 23RD...THAT A RECORD 
HIGH OF 92 WAS TIED WITH THIS RECORD FIRST OCCURRING IN 1987.
WITH THE DOMINANT DRY WEATHER...SEVERE WEATHER OCCURRENCES WERE VERY 
LIMITED. THE FOURTH OF JULY SAW SOME SCATTERED SEVERE STORM ACTIVITY 
WITH THUNDERSTORMS DROPPING 3/4 INCH HAIL NEAR OTTER LAKE AND NORTH 
BRANCH. 
***********
AUGUST 2001
***********
...TENTH WARMEST AND SEVENTH DRIEST AUGUST ON RECORD....
AUGUST STARTED OUT WITH HEAT AND HUMIDITY THAT ONLY WORSENED BY THE 
END OF THE FIRST WEEK. THE HOTTEST PERIOD /90 DEGREES OR BETTER/...
RAN FROM THE 4TH-9TH WHEN THREE RECORD HIGHS WERE SET. A HIGH OF 95
ON THE 7TH TIED THE OLD RECORD OF 95 SET JUST FIVE YEARS AGO IN 1996.
THEN...A HIGH OF 98 ON THE 8TH SHATTERED THE OLD RECORD OF 93 SET IN
1983. FINALLY...ANOTHER 95 DEGREE READING ON THE 9TH BROKE THE OLD
RECORD OF 94 SET WAY BACK NEAR THE START /1942/ OF THE RECORDS AT 
FLINT IN 1944. BY THE END OF THE FIRST TEN DAYS OF AUGUST...THE MEAN
TEMPERATURE AVERAGED ABOUT EIGHT DEGREES ABOVE NORMAL WITH THE AVERAGE
HIGH AT 90.
THE FAIRLY STEEP FLUCTUATIONS IN TEMPERATURES DURING THE SUMMER
OF 2001 WERE ALSO WELL REPRESENTED IN AUGUST. AS AN EXAMPLE...LESS 
THAN A WEEK AFTER ALL THE NINETIES WERE RECORDED...THE MERCURY FELL 
TO 46 ON THE 14TH BUT STAYED ABOVE THE RECORD OF 41. FROM MID 
AUGUST ON...THE VARIANCES IN TEMPERATURES CONTRACTED SOMEWHAT AND 
AVERAGED SLIGHTLY BELOW NORMAL TO SLIGHTLY ABOVE. THE MONTHLY AVERAGE 
TEMPERATURE OF 71.5 DEGREES /+2.9/ MADE THIS AUGUST THE TENTH WARMEST 
AUGUST ON RECORD. THE WARMEST AUGUST ON RECORD OCCURRED BACK IN 1947 
WITH AN AVERAGE TEMPERATURE OF 76.0. THIS AUGUST WAS THE WARMEST AUGUST 
SINCE 1995 WHEN THE TEMPERATURE AVERAGED 74.3.
THE HOT EARLY AUGUST WEATHER ONLY EXAGGERATED THE DRY CONDITIONS 
ALREADY IN PLACE ACROSS SOUTHEAST LOWER MICHIGAN. HOWEVER...THE DRY 
PATTERN THAT BEGAN LATE JUNE DID IN FACT...BEGIN TO ERODE LATE JULY 
INTO THE FIRST HALF OF AUGUST AS CONVECTIVE PRECIPITATION OCCASIONALLY 
MADE ITS WAY INTO THE FLINT AND SAGINAW AREAS. IN FACT...AFTER MID 
MONTH...A FEW EPISODES OF HEAVY TO VERY HEAVY RAIN EVEN INSTIGATED A 
COUPLE OF FLASH FLOOD WARNINGS IN HURON COUNTY ON THE 19TH...THEN AGAIN 
ON THE 30TH. LOCAL RAINFALL TOTALS ON THE 19TH RANGED FROM 2 - 3 INCHES 
TO UPWARDS OF CLOSE TO 8 INCHES...WHILE ON THE 30TH...LOCALLY AS MUCH 
AS 4 TO 5 INCHES FELL AGAIN IN PARTS OF THE COUNTY. RAINFALL TOTALS 
WERE MUCH LESS SEVERE ACROSS THE SAGINAW VALLEY...SOUTH INTO THE FLINT 
AREA. SO MUCH SO...THAT THE FLINT RAINFALL TOTAL FOR THE ENTIRE MONTH 
OF AUGUST WAS A RATHER SCANTLY 1.58 INCHES (CONSIDERING THE NORMAL IS 
3.49). SAGINAW'S TOTAL WAS A BIT MORE VEGETATION FRIENDLY AT 2.44 
INCHES...BUT STILL NOTABLY BELOW THE NORMAL OF 3.20.
SEVERE OR STRONG STORM WEATHER OUTBREAKS WERE LIMITED DUE TO A UPPER 
RIDGE DOMINATING THE EASTERN LAKES DURING AUGUST. MAINLY MINOR EVENTS 
DOMINATED THE MONTH...THE 8TH-9TH...19TH AND 30TH (SEE ABOVE). STRONG 
STORMS....SOME WITH TORRENTIAL RAIN...MOVED ACROSS THE SAGINAW BAY INTO 
MAINLY THE THUMB REGION IN THE MAJORITY OF CASES.
**************
SEPTEMBER 2001
**************
...AFTER A WARM AND DRY AUGUST...SEPTEMBER DOES AN ABOUT FACE...
...14TH COOLEST AND 18TH WETTEST SEPTEMBER ON RECORD...
SEPTEMBER STARTED OUT ON A PLEASANT NOTE WITH TEMPERATURES HOVERING 
BETWEEN THE MID 70S TO MID 80S AND JUST A TRACE OF RAIN THROUGH THE 
6TH. THE WARMEST OF THE MONTH'S WEATHER CAME ON THE 6TH-8TH WHEN 
TEMPERATURES WARMED INTO THE MID 80S TO LOWER 90S. A 91 DEGREE HIGH ON 
THE 7TH CAME WITHIN 2 DEGREES OF THE RECORD /93/. THIS HIGH OF 91 WAS 
THE 14TH DAY THIS YEAR (JUST LIKE DETROIT) THAT THE TEMPERATURE HIT 90 
OR BETTER...AND THIS WAS TWICE THE NORMAL OF SEVEN. THE HEAT WAS 
EXTINGUISHED BY A COLD FRONT THAT CHURNED THROUGH THE AREA ON THE 
8TH-9TH. POCKETS OF VERY HEAVY RAIN ACCOMPANIED THIS FRONT AS IT MOVED 
ACROSS THE SAGINAW VALLEY...THE THUMB REGION AND FLINT. RAINFALL 
AMOUNTS FOR THE 7-9TH INCLUDED...1.38 INCHES AT FLINT...2.00 AT 
SAGINAW...2.30 IN DECKERVILLE AND 1.43 AT AKRON.
AFTER...ANOTHER SPELL OF RELATIVELY DRY BUT COOLER WEATHER TOOK HOLD 
FROM THE 10TH THROUGH THE 18TH. ANOTHER STRONG SYSTEM ONCE AGAIN... 
DUMPED A ROUND OF HEAVY AMOUNTS OF RAIN FROM THE 19TH-21ST. DURING ALL 
OR PART OF THIS PERIOD SOME OF THE RAINFALL TOTALS INCLUDED...1.21 
INCHES AT FLINT...1.40 AT DECKERVILLE...1.00 IN MARLETTE...1.10 AT UBLY 
AND AN INCH AT PORT AUSTIN. SAGINAW HAD LESSER AMOUNTS WITH JUST .66 
INCH TOTALED UP. THIS SYSTEM BROUGHT AN IMPRESSIVE CHANGE IN OVERALL 
WEATHER PATTERN TO COOL AND WET...WHICH BASICALLY HELD MUCH OF THE 
REMAINDER OF THE MONTH. DURING THE LAST WEEK OF THE MONTH...OVERNIGHT 
LOWS FELL INTO THE MID 30S TO LOWER 40S AND WHILE COOL...THEY WERE 
NOWHERE NEAR ANY RECORD LOWS. HOWEVER...THE 25TH WAS A RAW...MID 
NOVEMBER-LIKE DAY WITH A PUNY HIGH OF JUST 43. THIS 43 DEGREE HIGH WAS 
THE LOWEST HIGH TEMPERATURE EVER RECORDED IN FLINT FOR THE DATE...AND 
WAS THE SECOND COLDEST HIGH EVER IN SEPTEMBER! THIS WAS IN STARK 
CONTRAST TO THE HIGH OF 91 RECORDED JUST A FEW WEEKS EARLIER. 
SEPTEMBER CLOSED ON A TRANQUIL NOTE AS A LARGE...FAIR WEATHER HIGH
PRESSURE MADE FOR A DELIGHTFUL EARLY FALL WEEKEND. UNDER MAINLY 
CLEAR SKIES AND LIGHT WINDS...TEMPERATURES FELL AS LOW AS THE MID TO 
UPPER 30S WITH SOME RURAL/SUBURBAN AREAS EVEN SEEING A LITTLE LIGHT 
PATCHY FROST.
THE HEAVY RAIN EVENTS DURING THE MONTH WERE ENOUGH TO PUSH THIS SEPTEMBER 
UP INTO 18TH PLACE FOR WETTEST SEPTEMBERS ON RECORD. THE WARM WEATHER THAT 
OCCURRED EARLIER IN THE MONTH WAS MORE THAN OFFSET BY THE UNSEASONABLY 
COLD WEATHER LATER IN THE MONTH. THE COLDER WEATHER WAS ENOUGH TO PUSH
THE AVERAGE TEMPERATURE FOR THE MONTH DOWN TWO DEGREES BELOW NORMAL... 
MAKING IT THE 14TH COOLEST SEPTEMBER ON RECORD. 
************
OCTOBER 2001
************
...A STORMY OCTOBER LEADS TO THE WETTEST OCTOBER ON RECORD SINCE 1942...
...RARE OCTOBER EXTENSIVE SEVERE WEATHER EVENT... 
...SEE-SAW TEMPERATURE PATTERN ENDS TO THE POSITIVE...
WHILE THERE WERE SEVERAL NOTABLE WEATHER ITEMS DURING OCTOBER...THE
MOST NOTABLE WAS ITS UNUSUAL WETNESS. THIS IS ESPECIALLY TRUE WHEN 
ONE CONSIDERS THAT OCTOBER IS...ON AVERAGE...OUR DRIEST OF FALL MONTHS. 
SEPTEMBER'S 18TH WETTEST PLACEMENT PALES IN COMPARISON WITH OCTOBER'S 
FIRST PLACE. THE 6.59 INCHES OF RAIN PLACED THIS OCTOBER AT THE TOP OF 
THE LIST IN FIRST PLACE FOR WETTEST OCTOBERS SINCE 1942. THE 6.59 INCHES
BLEW AWAY THE PREVIOUS NUMBER ONE PLACE HOLDER WHICH WAS JUST 4.21 IN 
1954. IT WAS...HOWEVER...A BIT DRIER TO THE NORTH AROUND THE SAGINAW
VALLEY. SAGINAW'S MONTHLY RAINFALL TOTAL OF 4.01 INCHES PLACED ONLY 
AT 15TH PLACE WITH FIRST PLACE WAY UP AT 7.78 INCHES ALSO IN 1954. THE 
HEAVY RAINFALL WAS A RESULT OF A STORM TRACK THAT REMAINED UNUSUALLY 
ACTIVE FOR OCTOBER...BRINGING SEVERAL BOUTS OF RAIN AND WHEN IT 
RAINED...SOMETIMES IT POURED! THE FIRST OF THE HEAVY RAIN EVENTS FELL 
ON THE 4-5TH WHEN A TOTAL OF 1.34 INCHES WAS MEASURED. THEN...LATER ON 
THE 12TH...ANOTHER .71 INCH OF RAIN FELL...AND TWO DAYS LATER ON THE 
14TH...AN ADDITIONAL .87 WAS RECORDED. THE HEAVIEST SOAKER...HOWEVER... 
OCCURRED ON THE 16TH WHEN 1.90 INCHES WAS DUMPED ON THE AREA. WHILE 
THERE WAS SOME URBAN AND SMALL STREAM FLOODING FROM THIS RAINFALL... 
THERE WAS NO NOTABLE RIVER FLOODING. THAT 1.90 ON THE 16TH WAS...NOT 
SURPRISINGLY...THE HIGHEST RAINFALL EVER RECORDED FOR THE DATE...BUT IT 
ALSO WAS JUST .04 SHY OF THE RECORD RAINFALL FOR ANY DAY IN OCTOBER 
/1.94-OCT 23 1951/.
MORE HEAVY RAINS /1.04/ FELL AGAIN DURING A SOMEWHAT RARE OCTOBER 
SEVERE WEATHER EVENT ON THE 24TH. AS A STRONG POLAR FRONT APPROACHED 
LATE ON THE 24TH...A SQUALL-LINE DEVELOPED AND SURGED RAPIDLY THROUGH 
THE REGION. SEVERAL REPORTS OF HIGH WINDS...HAIL AND EVEN TORNADOES 
WERE NOTED. ONE WEAK (F1) TORNADO TOUCHED DOWN 3 1/2 MILES EAST OF 
MUNGER IN BAY COUNTY AND THE DAMAGE PATH ROUGHLY PARALLELED THE 
BAY/TUSCOLA COUNTY LINE IN TUSCOLA COUNTY ENDING AT SAGINAW BAY 
APPROXIMATELY 1 MILE EAST OF QUANICASSEE. IN ADDITION...A F0 TORNADO 
BRIEFLY TOUCHED DOWN EAST OF FOSTERS IN SAGINAW COUNTY...WHILE STRAIGHT 
LINE WIND DAMAGE (AROUND 100 MPH) IN LAPEER COUNTY DID SUBSTANTIAL 
DAMAGE TO TREES AND BUILDINGS IN THE TOWN OF LUM. 
IN JUST THE TWO AUTUMN MONTHS (SEP-OCT)...10.30 INCHES OF RAIN FELL
OVER THE FLINT AREA (8.90 IN SAGINAW). THIS IS ABOUT TWO INCHES ABOVE 
THE NORMAL /8.34/ FOR THE ENTIRE AUTUMN PERIOD (SEP-NOV).
ANOTHER RESULT OF THE ACTIVE JET STREAM WAS THE ROLLER-COASTER
TEMPERATURE PATTERN. THE MONTH STARTED OUT WARM ENOUGH FOR EARLY
OCTOBER WITH TEMPERATURES PUSHING UP TO NEAR 80 DEGREES /79/ ON THE 
3RD. THEN ON THE 4-5TH...A STRONG COLD FRONT BROUGHT HEAVY RAIN 
BOTH DAYS FOR A 1.34 TOTAL. THE FIRST WEEKEND (6-7TH)...TEMPERATURES 
AT THEIR HIGHEST HOVERED NEAR 50...WHILE LOWS DIPPED DROPPED INTO THE 
MID TO UPPER 20S (7-8TH). IN FACT...A RECORD LOW WAS PRODUCED THE 
MORNING OF THE 8TH WITH 25 (PREVIOUS WAS 26/1953) AND THIS WAS OUR 
FIRST OFFICIAL HARD FREEZE. TEMPERATURES THAT HAD AVERAGED 10 DEGREES 
ABOVE NORMAL A FEW DAYS EARLIER...NOW AVERAGED CLOSE TO 12 DEGREES 
BELOW. SOON AFTER (13-14TH)...READINGS AGAIN POPPED TO AROUND 70 ONLY 
TO FALL BACK INTO THE 40S/50S UNTIL A NICE SPELL OF INDIAN SUMMER-LIKE 
WEATHER (AS FAR AS TEMPERATURES ANYWAY) SETTLED OVER THE AREA FROM THE 
20-24TH. THE AFOREMENTIONED STRONG POLAR FRONT DROPPED TEMPERATURES 
FROM A HIGH OF 72 (24TH) TO 49 (25TH) AS WEST WINDS BLASTED THE AREA 
WITH WIND GUSTS IN THE 30S/40S MPH. HIGH TEMPERATURES HOVERED IN THE 
LOWER 40S...WHILE LOWS DOVE INTO 20S/30S. THE FIRST OFFICIAL SIGHTINGS 
OF SNOW FLURRIES OCCURRED ON THE 25TH (THERE WERE...HOWEVER...SOME 
FLAKES SEEN FURTHER NORTH IN THE SAGINAW VALLEY EARLIER IN THE MONTH). 
*************
NOVEMBER 2001
*************
...SECOND WARMEST NOVEMBER ON RECORD IS HIGHLIGHTED BY RECORD HIGHS 
   THANKSGIVING WEEKEND...
...ABOVE NORMAL RAINFALL IN SOME AREAS...BELOW IN OTHERS...
NOVEMBER SWAPPED WITH OCTOBER THIS YEAR AS FAR AS GENERAL WEATHER 
TRENDS OF THE FALL ACROSS SOUTHEAST LOWER MICHIGAN. THIS PAST OCTOBER 
WAS MUCH MORE IN CHARACTER OF THE TYPICAL NOVEMBER WITH ITS FREQUENT 
STRONG LOW PRESSURE SYSTEMS AND FLUCTUATING TEMPERATURES...WHEREAS 
GOOD PORTIONS OF NOVEMBER...CONTAINED THE TRANQUIL INDIAN SUMMER 
WEATHER GENERALLY ENJOYED IN OCTOBER.
WHILE THE MONTH DID HAVE ITS OCCASIONAL POLAR OUTBREAK...OVER TWO 
THIRDS OF THE MONTH (23 DAYS) SAW TEMPERATURES AVERAGE ABOVE NORMAL. 
THE MONTH OPENED WITH HIGH READINGS INTO THE 60S...AND THAT CONTINUED 
ON AND OFF RIGHT THROUGH THANKSGIVING WEEKEND WHEN...TWO RECORD HIGHS 
WERE ESTABLISHED. ON BOTH THE 24TH AND 25TH...THE TEMPERATURE TOPPED 
OUT AT 63 DEGREES WHICH BROKE THE OLD RECORD OF 62 /1973/ FOR THE 24TH 
AND 60 /1984/ FOR THE 25TH. WITH ALL THE RELATIVELY WARM DAYS FOR 
NOVEMBER...THE AVERAGE TEMPERATURE OF 46.6 CAME IN AT AN IMPRESSIVE 7.2 
DEGREES ABOVE NORMAL. THIS PLACED NOVEMBER 2001 SOLIDLY IN SECOND PLACE 
FOR THE WARMEST NOVEMBER IN FLINT (AND WELL AHEAD OF THIRD PLACE WITH A 
TEMPERATURE OF JUST 43.4 /1963/). AT SAGINAW...AN AVERAGE TEMPERATURE 
OF 45.3 /+6.8/ PUT NOVEMBER 2001 IN FOURTH PLACE FOR WARMEST NOVEMBERS 
SINCE 1900. 
WHILE THE STORM TRACK ACTIVITY RELAXED SOMEWHAT IN NOVEMBER...THE 
FLINT AREA SOUTH INTO THE NORTHERN SUBURBS OF DETROIT...STILL MANAGED 
TO SEE NORMAL TO ABOVE NORMAL RAINFALL. WHILE THERE WAS A NOTABLE DRY 
PERIOD THROUGH THE 12TH...RAIN BEGAN TO FALL MORE ROUTINELY MID-LATE 
MONTH AND PUSHED THE MONTHLY TOTAL /3.14/ ABOVE NORMAL /2.60/. FURTHER 
NORTH INTO THE SAGINAW VALLEY AND PORTIONS OF THE THUMB...HOWEVER... 
RAINFALL DID IN FACT...FALL WELL BELOW THE NORMAL /2.56/ WITH ONLY 
1.15 INCHES IN SAGINAW. SAGINAW'S 1.15 INCHES OF RAIN MADE IT THE 
15TH DRIEST NOVEMBER ON RECORD. 
IN ANY EVENT...AFTER THANKSGIVING...THE FIRST IN A SERIES OF LOW 
PRESSURE SYSTEMS...PARADED INTO THE LAKES REGION. A STRONG LOW AND 
COLD FRONT BROUGHT STRONG GUSTY WINDS...HEAVY RAIN AND ISOLATED 
THUNDERSTORMS ACROSS THE REGION LATE ON THE 24TH INTO EARLY THE 25TH. 
THIS FRONT BROUGHT AN END TO THE RECORD WARMTH THANKSGIVING WEEKEND. 
LASTLY...ANOTHER LOW PRESSURE CLOSED NOVEMBER ON A WET NOTE WITH NEARLY 
AN INCH OF RAIN /.98/ FALLING ON THE 29-30TH. 
*************
DECEMBER 2001
*************
                 ...A TALE OF THREE DECEMBERS...
...3RD WARMEST DECEMBER ON RECORD AFTER 2ND COLDEST DECEMBER LAST YEAR...
...WARMEST DAY EVER RECORDED IN DECEMBER IN FLINT...
...UNSEASONABLY WARM WEATHER HITS THE ROAD IN TIME FOR CHRISTMAS... 
...FIRST THREE WEEKS OF THE MONTH AVERAGES 11 DEGREES ABOVE NORMAL... 
LIKE THIS PAST DECEMBER WITH A TEMPERATURE DEPARTURE OF +6.9...THE
LA NINA DECEMBER OF 1998 WAS ALSO UNUSUALLY MILD WITH THE TEMPERATURE 
AVERAGING 5.1 DEGREES ABOVE NORMAL. BOTH DECEMBERS CONTAINED BELOW 
NORMAL SNOW BUT DECEMBER OF 1998 HAD EVEN LESS WITH JUST 3.4 INCHES 
/-6.2/ AS COMPARED TO 8.1 /-1.5/ THIS DECEMBER. IN BOTH YEARS...THE 
DECEMBERS STARTED OUT ACTUALLY WARM WITH RECORD HIGH TEMPERATURES. 
RECORD HIGHS OF 63/66 WERE SET ON DECEMBER 5TH AND 6TH 1998...
RESPECTIVELY. THAT RECORD HIGH OF 63 WAS SUPERSEDED BY AN INCREDIBLE 70 
DEGREE READING THIS DECEMBER ON THE 5TH. NOT ONLY DID THAT 70 DEGREE 
READING ESTABLISH A DAILY HIGH TEMPERATURE RECORD...IT ALSO WAS THE 
WARMEST TEMPERATURE EVER RECORDED IN FLINT IN THE MONTH OF DECEMBER AND 
THEREFORE...SO LATE IN THE YEAR. ON THE FOLLOWING DAY /6TH/...A HIGH 
TEMPERATURE OF 64 JUST MISSED THE 1998 RECORD /66/ BY TWO DEGREES.
THE UNSEASONABLY MILD WEATHER PERSISTED RIGHT THROUGH THE FIRST THREE 
WEEKS (THROUGH THE 23RD) OF DECEMBER WITH TEMPERATURES AVERAGING
NEARLY 11 DEGREES ABOVE THE NORMAL OF 27.2. THIS DECEMBER'S MONTHLY 
DEPARTURE OF +6.9 (3RD WARMEST DECEMBER) COMES ON THE HEELS OF 
NOVEMBER'S +7.2 (2ND WARMEST NOVEMBER). UP IN THE SAGINAW AREA...
THE AVERAGE TEMPERATURE OF 33.7 FOR DECEMBER WAS A HUGE 7 1/2 DEGREES 
ABOVE NORMAL AND THE 4TH WARMEST DECEMBER SINCE 1900. SNOWFALL AT 
TRI-CITIES AIRPORT FOR DECEMBER WAS...HOWEVER...A RESPECTABLE 9 INCHES. 
CONTRAST THAT WITH LAST DECEMBER'S (2000) WEATHER AND WHAT A DIFFERENCE 
A YEAR MAKES! DECEMBER OF 2000 WAS THE WORST DECEMBER IN RECORDED 
HISTORY (SINCE 1942) IN THE FLINT AND (1900) IN THE SAGINAW AREA WHEN 
COMBINING BOTH SNOW AND COLD. SNOWFALLS OF 2 1/2 TO 3 1/2 FEET WERE 
COMMONPLACE ALONG WITH TEMPERATURES AVERAGING 16 1/2 TO 17 1/2 
DEGREES.  
A QUICK...MINI-SNOWSTORM DID MANAGE TO SNEAK THROUGH DURING ALL THE MILD 
WEATHER IN EARLY-MID DECEMBER ON THE 14TH. THE STORM BROUGHT GENERALLY 
1 TO 3 1/2 INCHES OF SNOW WITH FLINT RECEIVING 3.1 AND SAGINAW 1.3 INCHES. 
A SHARP REVERSAL IN THE JET STREAM AFTER THE 23RD DID BRING MUCH COLDER 
AIR AND EVEN BELOW NORMAL TEMPERATURES TO THE REGION. AFTER THE POLAR 
BLAST LATE ON THE 23RD UNTIL THE 31ST... TEMPERATURES AVERAGED ABOUT 
THREE DEGREES BELOW NORMAL AND LIGHT SNOW FELL ON A DAILY BASIS IN TIME 
FOR THE CHRISTMAS WEEK. 


2001

Month Temp/Depart Precip/Depart Snowfall/Depart Season/Depart
January 24.9/+3.4 1.03/-0.36 5.1/-6.7
February 27.1/+3.6 3.72/+2.44 5.0/-4.9
March 32.5/-1.5 0.56/-1.60 3.8/-3.7
April 48.5/+2.5 3.24/+0.30 2.0/-0.4 53.4/+8.3
May 59.2/+2.4 5.35/+2.70
June 66.7/+0.8 3.58/+0.37
July 71.0/+0.4 1.59/-1.12
August 71.5/+2.9 1.58/-1.91
September 59.4/-2.0 3.71/+0.15
October 50.5/+0.4 6.59/+4.41 T/-0.2
November 46.6/+7.2 3.14/+0.54 T/-3.8
December 34.1/+6.9 1.79/-0.32 8.1/-1.5

Year 49.3/+2.2 35.88/+5.60
1961-1990
Normals
47.1 30.28    

Average High 58.9/+2.6
Normal High 56.3
Average Low 39.7/+1.9
Normal Low 37.8

DEEDLER


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.