A Statistical Preview of Denver's November Weather

         ...A STATISTICAL PREVIEW OF DENVER'S NOVEMBER WEATHER...
 
ONE MONTH AHEAD OF THE WINTER SOLSTICE, NOVEMBER IS THE MONTH WHEN WINTER TRULY BEGINS IN THE MILE HIGH CITY. IT IS THE MONTH WHERE THE TRANSITION FROM THE USUALLY MILD OCTOBER BLENDS INTO THE DEPTH OF WINTER NEAR THE END OF DECEMBER. CANADIAN COLD FRONTS BEGIN TO PUSH THROUGH THE FRONT RANGE WITH MORE FORCE AS THE DAYLIGHT DIMINISHES. PACIFIC TROUGHS OF LOW PRESSURE ALSO BEGIN TO DIG DEEPER SOUTHWARD INTO THE ROCKIES BRINGING STRONGER STORMS.
 
DENVER'S MONTHLY MEAN TEMPERATURE FOR NOVEMBER IS 38.3 DEGREES (1981-2010) AS THE MONTH BEGINS WITH A DAILY NORMAL HIGH OF 59 DEGREES. BY MONTHS END, THE NORMAL HIGH COMES DOWN TO 46 DEGREES. LIKEWISE FOR LOWS, THE MONTH BEGINS WITH A NORMAL LOW OF 31 DEGREES AND FINISHES WITH A MUCH COLDER NORMAL LOW OF 19 DEGREES. THE WARMEST TEMPERATURE EVER RECORDED DURING THE MONTH OF NOVEMBER, SINCE RECORDS BEGAN IN 1872, WAS 80 DEGREES ON THE 8TH DAY OF THE MONTH, 2006. NOVEMBERS COLDEST TEMPERATURE IN DENVER WAS -18 ON THE 29TH DAY OF 1877.
 
DENVER'S COLDEST NOVEMBERS (MEAN TEMPERATURES):
 
22.0 DEGREES 1880
28.9         2000
29.8         1985
31.6         1929
32.3         1952
 
DENVER'S WARMEST NOVEMBER (MEAN TEMPERATURES):
 
50.9 DEGREES 1949
47.1         1999
46.2        1914, 1933
45.9         1927, 1981
45.6         1901, 1910, 1917
 
BEHIND MARCH, NOVEMBER IS DENVER'S 2ND SNOWIEST MONTH WITH THE CITY COLLECTING 8.7 INCHES ON AVERAGE (1981-2010). SIMILAR TO DENVER'S OTHER 3 SNOWIEST MONTHS OF MARCH, APRIL AND DECEMBER, NOVEMBER ALSO HAS THE CAPABILITY TO PRODUCE BIG SNOWSTORMS. THE BIGGEST SNOWSTORM DENVER RECEIVED DURING THE MONTH OF NOVEMBER WAS A POWERFUL 3 DAY EVENT WHICH DROPPED 30.4 INCHES OF SNOW FROM NOVEMBER 2ND THROUGH THE 4TH OF 1946. THE SECOND HEAVIEST SNOWFALL EVENT FOR NOVEMBER OCCURRED IN 1983. THAT 4 DAY EVENT GAVE THE CITY 22.4 INCHES FROM THE 26TH THROUGH THE 29TH.
 
AT TIMES, DROUGHT-LIKE CONDITIONS EXTEND WELL INTO THE WINTER MONTHS, FOR WHICH NOVEMBER IS NOT IMMUNE TO. THIS CAN BRING EXTENDED DRY PERIODS, OFTEN TIMES ACCOMPANIED BY A VERY WINDY PATTERN TO THE EASTERN FRONT RANGE LOCATIONS, INCLUDING DENVER, DURING DRY PERIODS.
 
DENVER'S SNOWIEST NOVEMBERS:
 
42.6 INCHES 1946
29.6        1991
29.3        1983
23.1        1928, 1929
22.9        1908
 
DENVER'S LEAST SNOWIEST NOVEMBERS:
 
0.0 INCHES 1949
 T         1884, 1899, 1901, 1905, 1917, 1939
0.3        1883
0.5        1885
0.8        1900
 
                    ...THE OUTLOOK FOR NOVEMBER 2012...
 
AFTER 7 CONSECUTIVE MONTHS OF ABOVE NORMAL TEMPERATURES, OCTOBER 2012 CAME IN 2.3 DEGREES BELOW NORMAL. THE SHORT TO MEDIUM RANGE MODELS INDICATE NEAR TO ABOVE NORMAL TEMPERATURES EXPECTED THROUGH THE FIRST THIRD OF NOVEMBER 2012. A COOL AND MOIST PATTERN IS EXPECTED TO SET UP FOR THE SECOND THIRD OF THE MONTH. FOR THE FINAL THIRD OF THE NOVEMBER, INDICATIONS POINT TO EQUAL CHANCES FOR PRECIPITATION AND TEMPERATURES TO BE ABOVE OR BELOW THE SEASONAL NORMALS. LOOKING BACK, NOVEMBER 2011 RECEIVED ABOVE NORMAL TEMPERATURES AND BELOW NORMAL PRECIPITATION.
 
                       ...NOVEMBER STATISTICS...
 
...TEMPERATURES (1981-2010 NORMALS)...
 
AVERAGE HIGH........................... 52.1
AVERAGE LOW............................ 24.5
MONTHLY MEAN........................... 38.3
DAYS WITH HIGH 90 OR ABOVE.............   0
DAYS WITH HIGH 32 OR BELOW.............   3 (2.3)
DAYS WITH LOW 32 OR BELOW.............. 23 (23.4)
DAYS WITH LOWS ZERO OR BELOW...........   1 (0.6)
 
...PRECIPITATION...
 
MONTHLY MEAN...........................   0.61 INCH
DAYS WITH MEASURABLE PRECIPITATION.....   5 (4.7)
AVERAGE SNOWFALL.......................   8.7 INCHES (2ND SNOWIEST MONTH)
DAYS WITH 1.0 INCH OR MORE SNOWFALL....   3 (2.6)
 
...MISCELLANEOUS NOVEMBER AVERAGES...
 
HEATING DEGREE DAYS.................... 801
COOLING DEGREE DAYS....................   0
WIND SPEED (MPH).......................   8.2*
WIND DIRECTION......................... SOUTH*
DAYS WITH THUNDERSTORMS................   0* (0.1)
DAYS WITH DENSE FOG....................   1* (1.2)
PERCENT OF SUNSHINE.................... 64*
(NOTE: SUNSHINE DATA ARE NO LONGER REPORTED AS OF OCTOBER 1, 2009)
 
* = 1971-2002 NORMALS
 
...NOVEMBER EXTREMES...
 
RECORD HIGH............................ 80 DEGREES ON 11/08/2006
RECORD LOW............................. -18 DEGREES ON 11/29/1877
WARMEST................................ 50.9 DEGREES IN 1949
MAXIMUM/MINIMUM COOLING DEGREES DAYS... NONE EVER RECORDED
COLDEST................................ 22.0 DEGREES IN 1880
MAXIMUM HEATING DEGREE DAYS............ 1074 IN 2000
MINIMUM HEATING DEGREE DAYS............   425 IN 1949
WETTEST................................   3.21 INCHES IN 1946
DRIEST.................................   T IN 1949, 1901, 1899
 
FREDIN


Return to Latest News

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