ANNUAL CLIMATOLOGICAL SUMMARY FOR FLINT - 1999
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
1230 PM EST THU JAN 20 2000

JANUARY 1999

...STORMY AND COLD FIRST HALF...MELLOWED OUT SECOND HALF...
...5TH SNOWIEST/WETTEST JANUARY ON RECORD...

JANUARY 1999 BEGAN WITH A METEOROLOGICAL BANG ON THE 2ND AS AN
INTENSE LOW PRESSURE SYSTEM MOVED INTO THE GREAT LAKES AND PRODUCED
HEAVY SNOW, HIGH WINDS, AND VERY DIFFICULT TRAVELING CONDITIONS.
OFFICIALLY AT BISHOP AIRPORT...8 1/2 INCHES OF SNOW FELL. THE SNOW
WAS ACCOMPANIED BY A STRONG EAST WIND AND CONSIDERABLE DRIFTING.
THIS WAS THE MOST SNOW TO FALL IN A STORM ACROSS THE FLINT AREA
SINCE MARCH 19-20, 1986.

THE STORM SET THE STAGE FOR WHAT WAS TO BE A VERY COLD AND SNOWY
2 WEEK PERIOD. BY MID-MONTH, OVER 20" OF SNOW HAD FALLEN AND
TEMPERATURES AVERAGED A PITIFUL 9 DEGREES (COMPARED TO THE JANUARY
NORMAL OF 21.5 DEGREES). THE SECOND HALF OF THE MONTH WAS
CONSIDERABLY WARMER. THIS CAUSED THE AVERAGE TEMPERATURE FOR THE
MONTH SURGED UP TO 20.6 DEGREES AND THUS, ONLY ENDED UP BEING
A DEGREE (-0.9) BELOW NORMAL. THE TEMPERATURE ROSE TO 55 DEGREES ON
THE 23RD. THIS JUST MISSED THE RECORD OF 56 DEGREES SET BACK IN 1967.

JANUARY PLACED 5TH FOR SNOWFALL (24.9") AND TIED 1975 FOR 5TH PLACE
IN PRECIPITATION (2.89"). HEAVY RAINFALL OVER THE REGION ON THE 22ND
(1.17"), ALONG WITH SNOWMELT, CAUSED SOME MINOR LOWLAND FLOODING.
 
 
FEBRUARY 1999

...5TH WARMEST FEBRUARY ON RECORD...
...WARMEST FEBRUARY DAY EVER RECORDED...
...THREE RECORD HIGHS ESTABLISHED...

DURING THE FIRST 2/3RDS OF FEBRUARY (THROUGH THE 19TH), THE
TEMPERATURE AVERAGED ABOUT 11 DEGREES ABOVE NORMAL, BUT DURING
THE LAST THIRD, TEMPERATURES FELL BACK CLOSER TO NORMAL. THE MONTH
CLOSED WITH AN AVERAGE TEMPERATURE OF 31.0 DEGREES...A BIG
7.5 DEGREES ABOVE NORMAL. THIS 31.0 DEGREE AVERAGE MADE IT THE
5TH WARMEST FEBRUARY ON RECORD SINCE 1942. FEBRUARY'S WARMTH PEAKED
ON THE 11TH WHEN THE TEMPERATURE HIT 68 DEGREES. THIS WAS THE WARMEST
TEMPERATURE EVER RECORDED DURING ANY FEBRUARY IN FLINT AND IT WAS
ALSO THE WARMEST TEMPERATURE SEEN SO EARLY IN THE YEAR.

ANOTHER RECORD HIGH WAS RECORDED SHORTLY AFTER MIDNIGHT ON THE
12TH WHEN THE TEMPERATURE REGISTERED 58, BUT THEN A STRONG COLD
FRONT PUT AN END TO THE WARMTH WHEN IT PLOWED THROUGH THE AREA
SHORTLY THEREAFTER. A SQUALL OF SHOWERS AND ISOLATED THUNDERSTORMS
DEVELOPED AS THE FRONT PASSED WITH WIND GUSTS MAINLY IN THE 40S
AND 50S MPH AFTER THE COLD AIR SURGED INTO THE AREA. THE MERCURY DOVE
TO AN ALMOST UNBELIEVABLE 14 DEGREES BY MIDNIGHT. THE DIFFERENCE
BETWEEN THE HIGH OF 58 AND LOW OF 14 ON THE 12TH WAS 44 DEGREES.
JUST 4 DAYS LATER (ON 16TH), ANOTHER RECORD HIGH WAS SET WITH
51 DEGREES.
 
TOTAL PRECIPITATION FOR THE MONTH WAS NEAR NORMAL, BUT SNOWFALL
WAS BELOW.
 

MARCH 1999

...THE LION ROARED BUT ONLY FOR A WHILE...
...AFTER A WARM FEBRUARY...A COLD MARCH...
...FOURTH DRIEST MARCH ON RECORD BUT YET THE 7TH SNOWIEST...

THE UNSEASONABLY MILD WEATHER OF FEBRUARY WAS REPLACED BY MUCH
COLDER WEATHER EARLY MARCH. IN FACT, THE FIRST HALF OF MARCH
AVERAGED ABOUT 8 DEGREES BELOW NORMAL. THE COLDEST OF THE WEATHER
HIT ON THE 7TH AND 8TH WITH LOWS OF -6 DEGREES EACH DAY. A NEW
RECORD LOW WAS SET ON THE 7TH, BUT JUST MISSED ON THE 8TH.
AFTER MID-MONTH, THE WEATHER MODERATED AND TEMPERATURES AVERAGED
GENERALLY NEAR OR ABOVE NORMAL AND BY THE 31ST, READINGS PUSHED
INTO THE 70S.

A SNOWSTORM, WITH CONSIDERABLE BLOWING AND DRIFTING, DUMPED
HEAVY AMOUNTS OF SNOW ACROSS THE AREA ON THE 5TH AND 6TH. OVER
9 INCHES (9.1) FELL AT BISHOP AIRPORT. THIS ACCOUNTED FOR OVER HALF
THE MONTH'S TOTAL SNOWFALL. MARCH'S SNOWFALL NEARLY DOUBLED THE
NORMAL, BUT TOTAL PRECIPITATION (RAIN AND SNOW) WAS ONLY ABOUT A
THIRD OF THE NORMAL. IN FACT, NO MEASURABLE PRECIPITATION FELL
AFTER THE 6TH AND THIS RESULTED IN MARCH 1999 BECOMING THE
4TH DRIEST MARCH ON RECORD. SNOWFALL FOR THE 1998-99 SEASON TOTAL
48.9 INCHES. THIS WAS SLIGHTLY ABOVE THE NORMAL OF 45.1 INCHES.
 

APRIL 1999

...5TH WETTEST APRIL ON RECORD....
...RECORD WARMTH EARLY...NEAR RECORD COLD LATE...

AFTER SEVERAL MONTHS OF MAINLY DRY WEATHER, APRIL 1999 TURNED
OUT TO BE A VERY WET MONTH IN FLINT, SAGINAW VALLEY, AND THE THUMB
AREA. FOR THE MOST PART, THIS WAS A WELCOME CHANGE ACROSS AN AREA
THAT HAS BEEN DEFICIENT IN RAIN FOR ABOUT A YEAR. THE OVER 5 INCH
(5.06) RAINFALL TOTAL WAS THE HIGHEST MONTHLY TOTAL SINCE JUNE 1996.

THIS IS NOT TO SAY THE APRIL WAS "ALL WET". THERE WERE A COUPLE OF
STRETCHES OF NICE DRY WEATHER WITH PLENTY OF SUNSHINE AND REASONABLE
TEMPERATURES. HOWEVER, DURING THE LAST WEEK OF APRIL, THERE WAS
SCATTERED FROST AND/OR FREEZING TEMPERATURES. THIS WAS MOST EVIDENT
DURING THE WEEKEND OF THE 24TH-25TH. THE LOW TEMPERATURE OF
27 DEGREES ON THE 25TH CAME WITHIN ONE DEGREE OF THE RECORD LOW (26).
 

MAY 1999

...MILD AND DRY...FOR THE MOST PART...

AFTER A WET APRIL, THE WEATHER IN FLINT AND POINTS NORTH ACROSS THE
SAGINAW VALLEY AND THUMB AREA REVERTED TO THE MORE FAMILIAR DRY
PATTERN THAT DOMINATED FOR SEVERAL MONTHS. GENERALLY ONLY LIGHT
RAIN AMOUNTS WERE SCATTERED THROUGH THE MONTH WITH THE DRIEST OF
WEATHER THE FIRST HALF. IN ADDITION TO THE DRYNESS, IT WAS WARMER
THAN NORMAL WITH TEMPERATURES AVERAGING 4 DEGREES ABOVE NORMAL.

COOLER WEATHER PUSHED INTO THE REGION MID MONTH AND IT WAS
ACCOMPANIED BY MORE GENEROUS RAINFALLS. BETTER THAN AN INCH OF RAIN
FELL AT MOST LOCATIONS DURING THE 3RD WEEK OF THE MONTH. A RATHER
NASTY FALL-LIKE PATTERN SET UP SHOP THE 24-27TH. DURING THIS TIME
PERIOD, AN UNSEASONABLY COOL AND INTENSE LOW PRESSURE AREA DOMINATED
THE GREAT LAKES WITH LOW CLOUDS, SCATTERED SHOWERS, AND STRONG GUSTY
WINDS. HIGHS OF ONLY 56 DEGREES ON THE 24TH AND 53 DEGREES ON THE
25TH WERE ACCOMPANIED BY WIND CHILLS AS LOW AS THE 20S AND 30S.
ALSO, THE HIGH OF 53 DEGREES ON THE 25TH WAS THE COLDEST HIGH
RECORDED ON THAT DATE. SOME WIDELY SCATTERED FROST WAS REPORTED ON
THE 27TH WHEN THE TEMPERATURE FELL TO 36 IN FLINT.

WEATHER EPISODES WERE LIMITED WITH THE MOST NOTABLE BLOWING
THROUGH SOUTHEAST LOWER MICHIGAN ON THE 17TH. STRONG TO SEVERE
THUNDERSTORMS ROARED THROUGH THE AREA IN ADVANCE OF A VIGOROUS COLD
FRONT. THE STORMS WERE ACCOMPANIED BY DAMAGING WINDS GUSTING
50 TO 70 MPH AND WIDELY SCATTERED REPORTS OF LARGE HAIL. FINALLY,
ISOLATED TORNADOES WERE REPORTED NEAR THE TOWN OF CLIFFORD,
IMLAY CITY, AND MIDLAND DURING THE MONTH.
 

JUNE 1999
 
...THE WEATHER PENDULUM SWUNG BACK AND FORTH IN JUNE CREATING...
   A RECORD HIGH...RECORD LOWS...DRY AND WET SPELLS AND A FEW
   BOUTS OF SEVERE WEATHER IN BETWEEN...

THE WEATHER FROM THE FLINT AREA NORTH INTO THE SAGINAW VALLEY
AND THUMB AREA WILL BE REMEMBERED AS QUITE VARIABLE DURING
JUNE 1999. SPELLS OF HOT AND COOL WEATHER ROUTINELY CYCLED THROUGH
THE MONTH. ALONG WITH THE TEMPERATURE VARIABILITY, DECIDEDLY WET
AND DRY PERIODS ADDED TO THE MIX.

A FEW SEVERE THUNDERSTORMS OCCURRED ACROSS GENESEE AND LAPEER
COUNTIES ON THE EVENING OF THE 9TH. GRAND BLANC RECEIVED THE BRUNT
OF THE STORMS. NUMEROUS LARGE TREES WERE DOWNED AS VERY STRONG WINDS
AND VICIOUS LIGHTNING ACCOMPANIED THESE STORMS. A RECORD HIGH WAS
SET THE NEXT DAY (10TH) WHEN THE TEMPERATURE ROSE TO 91 DEGREES.

A STRONG COLD FRONT FINALLY APPROACHED THE AREA LATE IN THE WEEK
ON THE 11TH-13TH. IT TRIGGERED A FEW MORE SEVERE THUNDERSTORMS.
MIDLAND COUNTY RECEIVED VERY HEAVY RAIN AND SOME WIND DAMAGE ON THE
10TH AND AGAIN ON THE 11TH. RADAR RAINFALL ESTIMATES WERE AS HIGH
AS 4 INCHES. ON THE 12TH, THUNDERSTORMS PRODUCED NEARLY AN INCH
(0.98) OF RAIN FELL AT FLINT BISHOP AIRPORT. THE FRONT HERALDED
IN SOME IMPRESSIVE, BUT GENERALLY WELCOMED COOL WEATHER FOR MID JUNE.
TEMPERATURES FAILED TO MAKE EVEN THE 70S ON THE 15TH-17TH.
TWO RECORD LOWS WERE SET, 41 DEGREES TIED 1942 ON THE 15TH
AND 41 DEGREES ON THE 18TH BROKE THE OLD RECORD OF 43 DEGREES SET
BACK IN 1986. THE ABNORMALLY COOL WEATHER GRADUALLY WARMED AND
CREATED SOME OF THE MOST DELIGHTFUL WEATHER OF THE MONTH WITH WARM
DAYS, COOL NIGHTS, AND LOW HUMIDITY.

LATE IN THE MONTH (23RD-28TH), ANOTHER MINI-HEATWAVE BAKED THE AREA
AND IT TOO ENDED ON A STORMY NOTE WITH ISOLATED STRONG TO SEVERE
THUNDERSTORMS AND MORE VERY HEAVY RAIN. ALL IN ALL, THE MONTHLY
AVERAGE TEMPERATURE OF 68.5 DEGREES. THIS WAS 2.6 DEGREES ABOVE NORMAL.
THIS MADE IT THE 12TH WARMEST JUNE IN FLINT SINCE 1942.
 

JULY 1999

...8TH WARMEST JULY/14TH WARMEST MONTH ON RECORD...
...SEVERE WEATHER EPISODES PICK UP DURING THE SECOND HALF OF MONTH...

OUR WARM TO HOT SUMMER CONTINUED RIGHT THROUGH JULY WITH TEMPERATURES
AVERAGING ABOVE NORMAL. THE AVERAGE TEMPERATURE OF 73.0 DEGREES MADE
THIS JULY THE 8TH WARMEST JULY AND THE 14TH WARMEST MONTH ON RECORD
IN FLINT SINCE 1942. THE WORST OF THE HEAT CAME DURING THE 4TH OF JULY
WEEKEND AND AT THE END OF THE MONTH. THE TEMPERATURE HIT 91 DEGREES
THREE TIMES DURING THE MONTH ON THE 4TH, 5TH, AND 31ST. WHILE THE
HOTTEST TEMPERATURE REACHED 92 ON THE 30TH. IN SPITE OF ALL THIS HEAT,
NO RECORD HIGH TEMPERATURES WERE ESTABLISHED DURING THE MONTH.

OCCASIONAL THUNDERSTORMS THROUGH THE MONTH MADE THE MONTH OF JULY
THE 11TH WETTEST JULY ON RECORD. TWO PERIODS IN PARTICULAR HAD
VERY HEAVY RAINFALL. AT THE MONTH'S OPENING (1ST), 1.33 INCHES FELL.
ON THE 23RD, STRONG TO SEVERE THUNDERSTORMS PRODUCED OVER ONE AND A
HALF (1.59) INCHES OF RAIN FELL. WHILE ON THE SUBJECT OF SEVERE WEATHER,
IT WAS GENERALLY CONCENTRATED DURING THE LAST WEEK OR SO. SEVERE
THUNDERSTORMS MOVED THROUGH THE REGION ON THE 23RD WHICH PROMPTED
SEVERAL WARNINGS. STRONG WINDS WITH GUSTS OF 50 TO 70 MPH DOMINATED
THIS EVENT CAUSING NUMEROUS DOWNED TREES ALONG WITH SCATTERED
POWER OUTAGES. ON THE 24TH, SEVERE WEATHER IN THE FORM OF HAIL
AND HIGH WINDS OCCURRED CAUSED ADDITIONAL TREE AND POWERLINE DAMAGE.
 

AUGUST 1999
 
...THE SUMMER MONTHS END ON A COOL NOTE...
...11TH COOLEST AUGUST YET THE 19TH WARMEST SUMMER...

AFTER SEVERAL MONTHS OF ABOVE NORMAL TEMPERATURES (SINCE APRIL), THE
LAST FULL MONTH OF THE SUMMER WENT OUT ON A COOL NOTE. TEMPERATURES
AVERAGE BETTER THAN TWO DEGREES (2.2) BELOW NORMAL. THE TEMPERATURE
NEVER HIT 90 DURING AUGUST AND GENERALLY WE SEE ONE OR TWO ANYWAY.
HOWEVER, DESPITE AUGUST COMING IN THE 11TH COOLEST ON RECORD, THE
SUMMER STILL MANAGED TO BE THE 19TH WARMEST. A DEFINITE PATTERN
CHANGE EVOLVED DURING AUGUST AS MORE COOLER CANADIAN AIRMASSES MADE
THEIR WAY INTO THE REGION.

LIKE WHAT IS TYPICALLY SEEN DURING THE SUMMER MONTHS...PRECIPITATION
WAS SPOTTY DUE TO THE MORE CONVECTIVE NATURE OF THE RAINFALL PATTERN.
OFFICIALLY AT FLINT BISHOP AIRPORT, 2.64 INCHES FELL DURING AUGUST
WHICH WAS A LITTLE LESS THAN AN INCH (0.85) BELOW NORMAL.

AUGUST WAS UNUSUALLY BENIGN IN THE SEVERE WEATHER DEPARTMENT.
WITH NO REAL NOTABLE OUTBREAK, SOME STRONG THUNDERSTORMS MOVED
THROUGH THE REGION ON FRIDAY THE 13TH, BUT NONE REACHED SEVERE
LIMITS. ALSO, A WEAK ISOLATED TORNADO MADE A BRIEF APPEARANCE FOR
A TV WEATHER CREW IN TUSCOLA COUNTY (EAST SOUTHEAST OF THE TOWN OF
REESE).
 
 
SEPTEMBER

...MAINLY DRY SEPTEMBER ENDS ON VERY WET NOTE...
...RECORD HIGH AND LOW SET...
...NICE WEEKENDS THROUGHOUT...

SEPTEMBER 1999 WILL GO DOWN AS A RATHER PLEASANT MONTH WEATHERWISE.
TEMPERATURES AVERAGED JUST SLIGHTLY ABOVE NORMAL IN FLINT. WITH
SUMMER WINDING DOWN, SEPTEMBER STARTED OUT ON A VERY SUMMER-LIKE
NOTE WITH TEMPERATURES APPROACHING THE 90 DEGREE MARK WITH SEVERAL
DAYS OF MID TO UPPER 80S. THERE WERE HOWEVER, PLENTY OF COOL PERIODS
DURING THE MONTH. ONE OF THESE PERIODS, PRODUCED A RECORD LOW AND
SCATTERED LIGHT FROST ON THE MORNING OF THE 22ND WHEN THE MERCURY
FELL TO 30 DEGREES.

ONE OF THE BIGGEST PLUSES ABOUT THE MONTH WAS THE VERY NICE WEEKENDS.
NO MEASURABLE RAIN FELL ANY OF THE WEEKENDS AND THE DAYS WERE FILLED
WITH PLENTY OF SUNSHINE.

SEPTEMBER WAS EXTREMELY DRY THROUGH THE 3RD WEEK WITH ONLY A QUARTER
INCH FALLING. IN FACT, THIS SEPTEMBER WAS WELL ON ITS WAY TO BEING
THE DRIEST ON RECORD HAD IT NOT BEEN FOR THE BIG 1.38" THAT FELL VERY
LATE IN THE MONTH ON THE 29TH.
 

OCTOBER 1999
 
...A GENERALLY COOL AND DRY OCTOBER THAT WAS GENERALLY PLEASANT...
 
OCTOBER FOLLOWED SEPTEMBERS LEAD WITH OVERALL, MAINLY PLEASANT
WEATHER CONDITIONS ACROSS SOUTHEAST LOWER MICHIGAN ALONG WITH THE
FAMILIAR ROLLER COASTER TEMPERATURE RIDE.

EVEN THOUGH OCTOBERS WEATHER WAS BASICALLY PLEASANT, IT DID NOT
START OUT THAT WAY. DURING THE FIRST WEEK, TEMPERATURES AVERAGED
ABOUT 10 DEGREES BELOW NORMAL AND THE COOL WEATHER WAS ACCOMPANIED
BY SCATTERED LIGHT RAIN FROM THE 2ND THROUGH THE 5TH. WHAT FROST
SUSCEPTIBLE PLANTS THAT WERE NOT KILLED OFF BY FROST AND FREEZING
TEMPERATURES (30 DEGREES) ON THE 3RD WERE PRETTY WELL WIPED OUT
IN MOST AREAS BY A HARD FREEZE (WITH A LOW OF 27 DEGREES) ON THE
7TH. HOWEVER, BY MID-MONTH, TEMPERATURES MODERATED SOME REDUCING
THE TEMPERATURE DEPARTURE.

LATE IN THE MONTH, A DELIGHTFUL PERIOD OF INDIAN SUMMER WEATHER SET
IN. PLENTY OF DAYTIME SUNSHINE PUSHED TEMPERATURES INTO THE MID 60S
TO MID 70S. DURING THIS TIME PERIOD, TEMPERATURES AVERAGED ABOUT
15 DEGREES ABOVE NORMAL. IN ADDITION, A RECORD HIGH WAS SET ON THE
29TH WITH 75 DEGREES. THE OLD RECORD WAS 73 DEGREES SET BACK IN 1989.
 
THOUGH RAIN WAS SCATTERED DURING THE MONTH, MUCH OF IT WAS DURING
THE FIRST HALF OF THE MONTH WHEN 1.28 INCHES OF THE 1.39 INCHES
MONTH'S TOTAL FELL.
 

NOVEMBER 1999

...4TH WARMEST NOVEMBER ON RECORD...
...7TH DRIEST NOVEMBER ON RECORD...
...FOUR RECORD HIGHS SET DURING THE MONTH....
...UNSEASONABLY MILD AND DRY NOVEMBER ENDS ON A COLD NOTE...

NOVEMBER CONTAINED PERIODS OF DELIGHTFUL INDIAN SUMMER WEATHER.
THE FREQUENT WARM SPELLS MADE THIS NOVEMBER THE 4TH WARMEST ON RECORD
IN FLINT. A SHORT TERM COLD BLAST SWEPT INTO THE REGION ON THE 3RD,
WHEN THE HIGH TEMPERATURE ONLY REACHED 40 DEGREES! THE COLD PRODUCED
THE FIRST GENERAL SNOW FLURRY ACTIVITY ACROSS THE REGION. WELL ABOVE
NORMAL TEMPERATURES RETURNED EARLY THE NEXT WEEK (9TH AND 10TH)
WHEN RECORD HIGHS WERE SET. A HIGH OF 73 DEGREES ON THE 9TH ELIMINATED
THE OLD RECORD OF 68 DEGREES SET BACK IN 1975. NOT ONLY WAS THIS A
RECORD FOR THE DAY, BUT THAT 73 DEGREES WAS THE WARMEST TEMPERATURE
EVER SEEN SO LATE IN THE YEAR. THEN ON THE 10TH...A HIGH OF
68 DEGREES BROKE THE OLD RECORD OF 67 DEGREES SET BACK IN 1975.

DURING THE REST OF NOVEMBER, SOME COLD CRISP DAYS ALONG WITH MORE
RECORD WARMTH. A HIGH OF 62 DEGREES ON THE 22ND FOR EXAMPLE, MATCHED
THE OLD RECORD OF 62 DEGREES SET BACK IN 1963. THEN ON THE 23RD, THE
TEMPERATURE POPPED TO 67 DEGREES. THIS WAS 7 DEGREES ABOVE THE OLD
RECORD OF 60 DEGREES SET BACK IN THE 1983. A COLD SNAP ARRIVED
THANKSGIVING WEEKEND. THIS PUSHED TEMPERATURES BELOW NORMAL.

LIKE SEPTEMBER AND OCTOBER, THE THIRD FALL MONTH WAS ALSO DRIER THAN
NORMAL. NOVEMBER'S RAINFALL OF JUST 1.13 INCHES MADE IT THE 7TH DRIEST
SINCE 1942. WORSE YET, THE MEAGER 0.63 THAT FELL IN SAGINAW WAS THE
6TH DRIEST NOVEMBER SINCE 1900!

THIS PAST LA NINA FALL WAS VERY REMINISCENT OF THE NICE LA NINA FALL
EXPERIENCED JUST LAST YEAR. BOTH FALLS WERE WARMER AND DRIER THAN
ON AVERAGE.
 

DECEMBER 1999

...TEMPERATURES ABOVE NORMAL...PRECIPITATION SLIGHTLY BELOW...

THE WARMER THAN NORMAL WEATHER EXPERIENCED THIS FALL CARRIED OVER
INTO THE FIRST WINTER MONTH ACROSS SOUTHEAST LOWER MICHIGAN.
TEMPERATURES AVERAGED 2.5 DEGREES ABOVE NORMAL. HOWEVER, DURING THE
FIRST HALF OF THE MONTH, TEMPERATURES AVERAGED WELL ABOVE NORMAL.
THROUGH THE 16TH, READINGS AVERAGED A RELATIVELY MILD 35.5 DEGREES.
THIS WAS OVER EIGHT DEGREES (+8.3) ABOVE THE MONTHLY NORMAL, BUT
IN SPITE OF THE ABOVE NORMAL READINGS, NO RECORD HIGHS WERE SET.

MUCH COLDER WEATHER MOVED IN THE WEEK BEFORE CHRISTMAS AND
CONTINUED UNTIL THE 30TH. THIS SIGNIFICANTLY TRIMMED THE ABOVE
NORMAL TEMPERATURE DEPARTURE ACCUMULATED FOR THE MONTH. IN FACT,
ON THE MORNING OF THE 24TH, THE FIRST SUB-ZERO (-2 DEGREES) READING
WAS OBSERVED THIS WINTER.
 
BOTH RAIN AND SNOWFALL AVERAGED SOMEWHAT BELOW NORMAL AS STRONG LOW
PRESSURE AREAS TRACKED MAINLY ACROSS THE NORTHERN GREAT LAKES.
 
IN SPITE OF BEING ON THE COLD SIDE, THE WEATHER AROUND THE HOLIDAYS
WAS FAIRLY TRANQUIL. WEAK LOW PRESSURE SYSTEMS DID BRING AN INCH OR
TWO OF SNOW ACROSS THE REGION ON THE 22ND AND THEN AGAIN ON THE
28TH.

-------------------------------------------------------------------

...1999 MONTHLY BREAKDOWN OF TEMPERATURES/PRECIPITATION/SNOWFALL AT
FLINT BISHOP AIRPORT...
 

1999 MONTHLY TEMPERATURES AT FLINT BISHOP AIRPORT AIRPORT

                             AVERAGE                 DEPARTURE
 MONTH         TEMPERATURE         FROM NORMAL
 ---------          -------------------        --------------------
JANUARY        20.6 DEGREES            -0.9 DEGREES
FEBRUARY      31.0 DEGREES           +7.5 DEGREES (5TH WARMEST)
MARCH            31.0 DEGREES           -3.0 DEGREES (18TH COLDEST)
APRIL               48.1 DEGREES           +2.1 DEGREES (16TH WARMEST)
MAY                 59.3 DEGREES           +2.5 DEGREES (13TH WARMEST)
JUNE                68.5 DEGREES            +2.6 DEGREES (12TH WARMEST)
JULY                73.0 DEGREES            +2.4 DEGREES (8TH WARMEST)
AUGUST          66.4 DEGREES            -2.2 DEGREES (11TH COLDEST)
SEPTEMBER    61.9 DEGREES           +0.5 DEGREES
OCTOBER        48.2 DEGREES           -1.9 DEGREES (16TH COLDEST)
NOVEMBER    42.9 DEGREES           +3.5 DEGREES (4TH WARMEST)
DECEMBER     29.7 DEGREES           +2.5 DEGREES (20TH WARMEST)
--------------     ----------------            ----------------
OVERALL        48.4 DEGREES           +1.3 DEGREES (12TH WARMEST)
 

1999 MONTHLY PRECIPITATION AT FLINT BISHOP AIRPORT

                                TOTAL                 DEPARTURE
MONTH          PRECIPITATION     FROM NORMAL
----------         --------------------    --------------------
JANUARY         2.89 INCHES         +1.50 INCHES (5TH WETTEST)
FEBRUARY       1.19 INCHES         -0.09 INCHES
MARCH             0.75 INCHES         -1.41 INCHES (4TH DRIEST)
APRIL                5.06 INCHES        +2.12 INCHES (5TH DRIEST)
MAY                  1.81 INCHES        -0.84 INCHES (17TH DRIEST)
JUNE                  3.89 INCHES       +0.68 INCHES
JULY                  4.13 INCHES       +1.42 INCHES (11TH WETTEST)
AUGUST            2.64 INCHES       -0.85 INCHES
SEPTEMBER      2.11 INCHES      -1.45 INCHES (20TH DRIEST)
OCTOBER         1.39 INCHES      -0.79 INCHES (14TH DRIEST)
NOVEMBER      1.13 INCHES      -1.47 INCHES (7TH DRIEST)
DECEMBER       1.97 INCHES      -0.14 INCHES
--------------       ---------------     ----------------
OVERALL        28.96 INCHES     -1.32 INCHES
 
 

1999 MONTHLY SNOWFALL AT FLINT BISHOP AIRPORT

                               TOTAL                  DEPARTURE
MONTH            SNOWFALL          FROM NORMAL
----------            --------------          -------------------
JANUARY        24.9 INCHES         +13.1 INCHES (5TH SNOWIEST)
FEBRUARY        6.0 INCHES            -3.9 INCHES
MARCH            14.4 INCHES           +6.9 INCHES (7TH SNOWIEST)
APRIL                   TRACE                 -2.4 INCHES
MAY                   0.0 INCHES              NORMAL
JUNE                   0.0 INCHES             NORMAL
JULY                   0.0 INCHES             NORMAL
AUGUST             0.0 INCHES             NORMAL
SEPTEMBER       0.0 INCHES             NORMAL
OCTOBER           0.0 INCHES          -0.2 INCHES
NOVEMBER         TRACE                -3.8 INCHES
DECEMBER        5.1 INCHES          -4.5 INCHES

DEEDLER/BOYNE


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