A Statistical Preview of Denver's February Weather

...A STATISTICAL PREVIEW OF DENVER`S FEBRUARY WEATHER...
 
FEBRUARY IN DENVER IS TYPICALLY THE FINAL MONTH OF THE ANNUAL DRY PERIOD WHICH BEGINS IN NOVEMBER. SIMILAR TO DECEMBER AND JANUARY, FEBRUARY AVERAGES LESS THAN A HALF INCH OF PRECIPITATION. TEMPERATURES BEGIN TO TREND UPWARD OFF THE ANNUAL LOWS TOWARD THE END OF THE FEBRUARY AS THE NORTHERN HEMISPHERE MOVES INTO SPRING. WINDY EPISODES ARE VERY COMMON DURING FEBRUARY AS THE STREAM OF STRONG WINDS ALOFT FREQUENTLY WAVERS OVER THE STATE DURING THE LATE WINTER PERIOD.
 
DENVER'S MONTHLY MEAN TEMPERATURE FOR FEBRUARY IS 32.5 DEGREES (1981-2010 AVERAGES) AND IS DENVER'S 3RD COLDEST MONTH OF THE YEAR BEHIND DECEMBER AND JANUARY RESPECTIVELY. FEBRUARY STARTS THE MONTH WITH A NORMAL HIGH OF 44 DEGREES. THE DAILY NORMAL HIGH TEMPERATURES BEGIN TO RAMP UP TOWARD THE END OF THE MONTH WHILE ENDING WITH A NORMAL HIGH OF 50 DEGREES. FOR LOW TEMPERATURES, THE MONTH BEGINS WITH A NORMAL LOW OF 17 DEGREES AND FINISHES WITH A LOW OF 22 DEGREES.
 
THE WARMEST TEMPERATURE EVER RECORDED DURING THE MONTH OF FEBRUARY, SINCE RECORDS BEGAN IN 1872, WAS 77 DEGREES ON BOTH THE 4TH DAY OF 1890 AND ALSO THE 28TH OF 2006. FEBRUARY'S COLDEST TEMPERATURE EVER IN DENVER WAS -25 DEGREES AND OCCURRED ON BOTH THE 1ST OF 1951 AND ALSO ON 8TH OF 1936.
 
DENVER'S TOP 10 COLDEST FEBRUARYS (MEAN TEMPERATURES):
 
17.7 DEGREES 1899
21.8         1913
22.2         1883
22.3         1989
22.7         1903
23.6         1929
24.1         1942
24.8         1960
24.9         1894
25.2         1905
 
DENVER'S TOP 10 WARMEST FEBRUARYS (MEAN TEMPERATURES):
 
43.7 DEGREES 1954
42.3         1930
41.0         1925
40.7         1957
40.5         1943
40.3         1991
40.3         1907
40.1         1992
40.1         1904
39.8         1932
 
 
FOR DENVER'S NINE MONTH SNOW PERIOD OF SEPTEMBER THROUGH MAY, FEBRUARY RANKS 6TH BEHIND MARCH, NOVEMBER, DECEMBER, JANUARY AND APRIL. DENVER NORMALLY COLLECTS 5.7 INCHES OF SNOW IN FEBRUARY BASED ON AVERAGES FROM OLD STAPLETON INTL AIRPORT (1981-2010 AVERAGES). SIMILAR TO JANUARY, THE SNOWSTORMS ARE TYPICALLY LESS POTENT COMPARED TO THOSE OF DECEMBER AND MARCH AND ARE OFTEN DRIVEN BY CANADIAN AND ARCTIC SURFACE COLD FRONTS WITH LOWER MOISTURE CAPACITY.
 
DENVER'S SNOWIEST FEBRUARYS:
 
22.1 INCHES 1912
20.2        2012
19.5        1942
18.3        1960
18.3        1909
17.5        1959
17.1        1965
16.9        1993
16.5        1953
16.3        1939
 
THE WINTER PERIOD OF DECEMBER THROUGH MARCH OVER THE HIGH PLAINS STATES OCCASIONALLY RECEIVES EXTENDED DROUGHT-LIKE CONDITIONS. THESE DRY PERIODS ARE OFTEN ASSOCIATED WITH LA NINA PHASES OF THE PACIFIC OCEANIC REGION AND CAN TAKE MONTHLY TEMPERATURES TO ABOVE SEASONAL NORMALS MAINLY DUE TO WARMER NIGHT-TIME LOW TEMPERATURES FROM LACK OF SNOW COVER. LA NINA PATTERNS ARE ALSO ASSOCIATED WITH CONTINUOUS WINDY DOWNSLOPE PERIODS ALONG THE EASTERN PLAINS REGION, INCLUDING THE FRONT RANGE FOOTHILLS AND THE ENTIRE I-25 CORRIDOR, INCLUDING DENVER. THIS DOWNSLOPE WEATHER FEATURE ALSO PROVIDES A WARM BIAS TO TEMPERATURES EAST OF THE CONTINENTAL DIVIDE.
 
DENVER'S LEAST SNOWIEST FEBRUARYS:
 
 T   INCHES 2009
0.1         1992
0.2         1970
0.3         1954
0.4         1925
0.5         2005
0.8         1991
0.9         1983
1.0         1943
1.0         1908
 
                    ...THE OUTLOOK FOR FEBRUARY 2015...
 
AFTER A COLD START TO JANUARY 2015, THE MONTH ENDED WITH ABOVE NORMAL TEMPERATURES, SLIGHTLY BELOW NORMAL PRECIPITATION AND NEAR NORMAL SNOWFALL. A WEAK DISTURBANCE IN THE FINAL 2 DAYS OF JANUARY WILL GIVE WAY TO ANOTHER PERIOD OF DOMINANT STABLE HIGH PRESSURE FOR THE REGION WHICH IS EXPECT TO LAST THROUGH THE FIRST 10 DAYS OF THE FEBRUARY. FOR THE REMAINDER OF FEBRUARY 2015, THE CLIMATE PREDICTION CENTER INDICATES TEMPERATURES AND PRECIPITATION HAVING EQUAL CHANCES OF FINISHING ABOVE OR BELOW SEASONAL AVERAGES.
 
 
 
                       ...FEBRUARY STATISTICS...
 
...TEMPERATURES (1981-2010 NORMALS)...
 
AVERAGE HIGH........................... 46.2
AVERAGE LOW............................ 18.9
MONTHLY MEAN........................... 32.5
DAYS WITH HIGH 90 OR ABOVE.............   0
DAYS WITH HIGH 32 OR BELOW.............   4 (3.9)
DAYS WITH LOW 32 OR BELOW.............. 27 (26.9)
DAYS WITH LOWS ZERO OR BELOW...........   1 (1.3)
 
...PRECIPITATION...
 
MONTHLY MEAN...........................   0.32 INCH
DAYS WITH MEASURABLE PRECIPITATION.....   5 (5.3)
AVERAGE SNOWFALL........................ 5.7 INCHES (6TH SNOWIEST
                                                      MONTH)
 
...MISCELLANEOUS FEBRUARY AVERAGES...
 
HEATING DEGREE DAYS.................... 908
COOLING DEGREE DAYS....................    0
WIND SPEED (MPH).......................    8.8*
WIND DIRECTION......................... SOUTH*
DAYS WITH THUNDERSTORMS................    0* (0.1)
DAYS WITH DENSE FOG....................    2* (1.6)
PERCENT OF SUNSHINE....................   70*
(NOTE: SUNSHINE DATA ARE NO LONGER REPORTED AS OF OCTOBER 1, 2009)
 
* = 1971-2002 NORMALS
 
...FEBRUARY EXTREMES...
 
RECORD HIGH............................ 77 DEGREES ON 2/4/1890
                                                       2/28/2006
RECORD LOW............................. -25 DEGREES ON 2/1/1951
                                                       2/8/1936
WARMEST................................ 43.7 DEGREES IN 1954
MAXIMUM/MINIMUM COOLING DEGREES DAYS... NONE EVER RECORDED
COLDEST................................ 17.6 DEGREES IN 1899
MAXIMUM HEATING DEGREE DAYS............ 1210 IN 1913
MINIMUM HEATING DEGREE DAYS............   589 IN 1954
WETTEST................................   2.01 INCHES IN 1934
DRIEST.................................   0.01 INCHES IN 1970
 
WFO BOULDER


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