BOULDER, COLORADO

Period of Record General Climate Summary - Temperature

Station:(050848) BOULDER
From Year=1893 To Year=2012
Monthly Averages Daily Extremes Monthly Extremes Max. Temp. Min. Temp.
Max. Min. Mean High Date Low Date Highest
Mean
Year Lowest
Mean
Year >=
90 F
<=
32 F
<=
32 F
<=
0 F
F F F F dd/yyyy
or
yyyymmdd
F dd/yyyy
or
yyyymmdd
F - F - # Days # Days # Days # Days
January 44.9 20.5 32.7 74 22/1925 -33 17/1930 43.5 1953 16.4 1930 0.0 5.0 26.7 2.2
February 47.0 22.4 34.7 79 08/1954 -28 08/1936 47.6 1954 18.0 1899 0.0 3.5 23.4 1.3
March 53.3 27.9 40.6 90 17/1910 -13 09/1932 54.5 1910 29.4 1924 0.0 2.0 21.3 0.4
April 61.9 35.7 48.8 88 21/1989 -3 02/1975 56.7 1981 39.7 1920 0.0 0.2 10.6 0.0
May 70.4 44.2 57.3 95 28/2000 20 03/1907 64.3 1958 49.4 1935 0.3 0.0 1.8 0.0
June 80.6 52.8 66.7 104 23/1954 30 02/1907 74.9 1956 60.3 1945 5.0 0.0 0.1 0.0
July 86.4 58.7 72.5 104 11/1954 40 04/1903 78.3 1954 67.0 1906 10.9 0.0 0.0 0.0
August 84.7 57.5 71.1 102 24/1936 40 10/1912 76.4 1919 65.2 1915 7.3 0.0 0.0 0.0
September 77.0 49.0 63.0 100 02/1983 15 30/1985 69.8 1953 55.4 1912 1.6 0.0 0.7 0.0
October 66.1 39.0 52.5 92 25/1901 -2 29/1917 61.9 1950 41.5 1925 0.0 0.2 6.7 0.0
November 53.8 28.9 41.4 79 02/1931 -12 27/1919 53.1 1949 31.1 1985 0.0 1.7 19.1 0.2
December 46.1 22.3 34.2 76 17/1980 -24 22/1990 44.1 1957 19.9 1909 0.0 4.1 25.7 1.2
Annual 64.3 38.2 51.3 104 19540623 -33 19300117 56.0 1954 48.4 1941 25.1 16.7 136.0 5.4
Winter 46.0 21.7 33.9 79 19540208 -33 19300117 40.9 1954 26.3 1899 0.0 12.6 75.8 4.8
Spring 61.8 36.0 48.9 95 20000528 -13 19320309 55.1 2012 42.8 1917 0.3 2.2 33.6 0.4
Summer 83.9 56.3 70.1 104 19540623 30 19070602 74.9 1954 65.5 1915 23.2 0.0 0.1 0.0
Fall 65.6 39.0 52.3 100 19830902 -12 19191127 57.8 1953 47.1 1985 1.6 1.9 26.5 0.2
Table updated on Oct 31, 2012
For monthly and annual means, thresholds, and sums:
Months with 5 or more missing days are not considered
Years with 1 or more missing months are not considered
Seasons are climatological not calendar seasons
Winter = Dec., Jan., and Feb. Spring = Mar., Apr., and May
Summer = Jun., Jul., and Aug. Fall = Sep., Oct., and Nov.


Western Regional Climate Center, wrcc@dri.edu