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Boulder Monthly Means: Snowfall

Units are inches

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Plot of monthly mean snowfall Total A: Snow Year (Sep-Jun with June of row year) Total B: Jan-Dec
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec TotalA TotalB
1889 . . . . . . . . . 18.5 . . . .
1893 . . . . . . . . . 9.0 . . . .
1894 . . 14.0 . . . . . . . . 12.3 . .
1895 5.3 7.6 17.3 0.0 0.0 0.0 . . . . . . . .
1896 . . . . . . . . . . . . . .
1897 5.8 10.2 13.7 11.3 0.0 0.0 0.0 0.0 0.0 8.7 5.5 9.0 . 64.2
1898 7.0 4.2 7.5 8.2 13.0 0.0 0.0 0.0 1.0 5.0 23.5 18.0 63.1 87.4
1899 13.0 15.2 31.0 8.0 0.0 0.0 0.0 0.0 0.0 2.0 0.0 12.8 114.7 82.0
1900 4.5 14.8 6.8 20.0 0.0 0.0 0.0 0.0 0.0 0.0 3.1 9.2 60.9 58.4
1901 7.5 6.2 18.5 26.0 0.0 0.0 0.0 0.0 0.0 4.0 0.0 15.0 70.5 77.2
1902 7.2 6.5 9.5 3.0 0.0 0.0 0.0 0.0 0.0 0.5 8.0 17.0 45.2 51.7
1903 2.0 19.5 13.5 18.0 0.0 0.0 0.0 0.0 1.0 10.5 2.2 2.5 78.5 69.2
1904 2.0 3.0 16.0 1.0 0.0 0.0 0.0 0.0 0.0 5.0 1.0 8.5 38.2 36.5
1905 13.5 8.5 7.5 21.5 3.0 0.0 0.0 0.0 0.0 13.0 0.0 0.0 68.5 67.0
1906 3.2 2.5 24.0 8.0 0.0 0.0 0.0 0.0 0.0 19.0 18.0 0.0 50.7 74.7
1907 6.2 7.0 2.5 28.5 15.0 0.0 0.0 0.0 1.0 0.0 6.2 2.1 96.2 68.5
1908 10.0 1.5 3.8 5.5 8.0 0.0 0.0 0.0 8.0 15.2 31.0 15.0 38.1 98.0
1909 0.5 19.2 26.5 27.5 0.0 0.0 0.0 0.0 0.0 1.0 16.5 31.0 142.9 122.2
1910 4.0 20.8 0.0 0.2 7.0 0.0 0.0 0.0 0.0 0.0 0.5 4.5 80.5 37.0
1911 11.5 27.1 0.0 12.0 0.0 0.0 0.0 0.0 0.0 8.0 10.0 5.9 55.6 74.5
1912 2.4 22.1 12.9 0.0 7.0 0.0 0.0 0.0 0.0 3.0 2.0 2.4 68.3 51.8
1913 6.2 12.8 21.1 15.4 0.0 0.0 0.0 0.0 0.0 9.0 0.0 52.5 62.9 117.0
1914 0.0 1.7 26.9 14.8 0.0 0.0 0.0 0.0 0.0 3.0 0.9 5.3 104.9 52.6
1915 8.6 18.5 13.4 0.0 14.5 0.0 0.0 0.0 0.0 0.0 3.9 19.4 64.2 78.3
1916 11.2 0.4 12.8 14.0 5.0 0.0 0.0 0.0 0.0 10.1 17.4 13.6 66.7 84.5
1917 5.9 6.3 22.2 13.0 14.8 0.0 0.0 0.0 0.0 7.5 0.0 5.3 103.3 75.0
1918 6.8 14.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.0 14.0 15.5 34.1 52.8
1919 0.0 6.9 10.0 4.5 0.0 0.0 0.0 0.0 0.0 0.0 12.0 5.0 52.9 38.4
1920 12.5 14.4 6.1 40.3 0.0 0.0 0.0 0.0 0.0 4.2 13.3 13.7 90.3 104.5
1921 4.4 4.0 8.8 13.6 0.0 0.0 0.0 0.0 0.0 0.0 6.3 14.9 62.0 52.0
1922 6.0 7.6 3.6 4.7 0.0 0.0 0.0 0.0 0.0 1.1 14.0 3.7 43.1 40.7
1923 0.0 24.4 24.8 2.5 0.2 0.0 0.0 0.0 0.0 12.3 3.9 7.4 70.7 75.5
1924 7.9 2.8 22.5 16.5 0.0 0.0 0.0 0.0 0.0 0.0 1.0 14.2 73.3 64.9
1925 2.0 0.0 4.3 0.0 0.0 0.0 0.0 0.0 0.0 13.5 8.0 15.0 21.5 42.8
1926 8.5 5.8 22.0 3.0 0.0 0.0 0.0 0.0 0.0 3.0 0.0 20.8 75.8 63.1
1927 3.9 3.9 10.0 8.4 0.0 0.0 0.0 0.0 0.0 0.0 8.6 8.2 50.0 43.0
1928 0.8 16.8 16.7 2.4 0.0 0.0 0.0 0.0 0.0 0.0 19.7 0.5 53.5 56.9
1929 4.7 12.1 26.2 2.0 0.0 0.0 0.0 0.0 0.0 14.9 25.9 9.1 65.2 94.9
1930 8.9 7.3 6.5 0.0 5.5 0.0 0.0 0.0 0.0 0.0 13.3 9.8 78.1 51.3
1931 0.0 16.9 21.6 10.6 26.7 0.0 0.0 0.0 0.0 0.0 13.4 0.4 98.9 89.6
1932 4.7 14.4 14.4 5.3 0.0 0.0 0.0 0.0 0.0 6.3 5.1 8.4 52.6 58.6
1933 0.0 5.6 9.1 37.7 3.0 0.0 0.0 0.0 0.0 0.0 1.2 8.0 75.2 64.6
1934 1.0 18.1 15.5 13.3 0.0 0.0 0.0 0.0 3.0 0.0 8.4 3.0 57.1 62.3
1935 1.7 8.1 1.6 16.1 1.0 0.0 0.0 0.0 3.0 2.3 7.7 0.2 42.9 41.7
1936 5.9 7.7 24.2 9.9 0.0 0.0 0.0 0.0 8.0 6.0 3.5 5.6 60.9 70.8
1937 7.9 5.8 8.3 19.8 0.0 0.0 0.0 0.0 0.0 2.5 7.7 15.7 64.9 67.7
1938 8.7 11.3 21.8 9.0 0.0 0.0 0.0 0.0 0.0 2.7 24.9 15.3 76.7 93.7
1939 8.0 13.3 9.4 14.1 0.0 0.0 0.0 0.0 0.0 6.5 0.0 4.3 87.7 55.6
1940 24.2 15.9 14.6 8.0 0.0 0.0 0.0 0.0 0.0 0.0 7.0 6.5 73.5 76.2
1941 11.5 3.3 29.2 15.0 0.0 0.0 0.0 0.0 0.0 0.3 6.1 12.7 72.5 78.1
1942 13.3 20.9 11.7 10.0 1.5 0.0 0.0 0.0 1.0 23.0 5.2 7.9 76.5 94.5
1943 2.0 3.5 17.9 0.0 9.5 0.0 0.0 0.0 0.0 0.0 9.5 6.6 70.0 49.0
1944 13.0 5.4 41.1 27.6 2.1 0.0 0.0 0.0 0.0 0.0 4.5 9.6 105.3 103.3
1945 20.3 9.0 10.9 32.5 0.5 0.0 0.0 0.0 2.0 5.1 6.5 4.0 87.3 90.8
1946 21.2 5.5 1.0 0.0 7.5 0.0 0.0 0.0 1.0 7.3 46.7 7.0 52.8 97.2
1947 17.0 19.3 23.7 9.0 5.0 1.0 0.0 0.0 0.0 8.0 14.0 13.4 137.0 110.4
1948 35.0 9.8 27.5 2.0 0.0 0.0 0.0 0.0 0.0 12.0 13.1 8.1 109.7 107.5
1949 28.2 2.3 18.6 9.1 0.0 0.0 0.0 0.0 0.0 7.9 0.0 4.4 91.4 70.5
1950 11.8 3.7 4.2 9.0 13.7 0.0 0.0 0.0 0.0 0.0 20.4 3.2 54.7 66.0
1951 13.3 9.2 30.7 17.9 0.0 2.2 0.0 0.0 1.5 3.9 17.8 18.0 96.9 114.5
1952 1.0 7.0 26.8 9.3 0.0 0.0 0.0 0.0 0.0 2.5 26.7 3.5 85.3 76.8
1953 5.3 11.8 11.8 24.4 3.0 0.0 0.0 0.0 0.0 0.0 10.3 15.7 89.0 82.3
1954 6.7 3.4 14.2 6.8 6.5 0.0 0.0 0.0 0.0 4.2 4.0 7.5 63.6 53.3
1955 6.5 21.3 26.0 2.5 0.0 0.0 0.0 0.0 0.0 2.0 14.7 9.2 72.0 82.2
1956 5.1 25.3 18.8 9.6 0.0 0.0 0.0 0.0 0.0 2.0 20.5 8.5 84.7 89.8
1957 15.2 4.0 5.0 44.0 4.0 0.0 0.0 0.0 0.0 1.6 4.6 1.0 103.2 79.4
1958 11.9 6.4 28.8 16.1 0.0 0.0 0.0 0.0 0.2 3.5 12.3 12.2 70.4 91.4
1959 16.5 15.9 19.9 21.0 0.0 0.0 0.0 0.0 10.9 14.5 13.6 0.5 101.5 112.8
1960 10.4 21.4 10.5 7.7 1.5 0.0 0.0 0.0 0.0 4.5 5.5 18.1 91.0 79.6
1961 9.7 0.0 30.3 6.4 0.0 0.0 0.0 0.0 0.0 10.7 13.7 8.6 74.5 79.4
1962 25.1 12.5 6.6 4.3 0.0 0.0 0.0 0.0 0.0 0.0 6.9 1.5 81.5 56.9
1963 15.4 5.6 28.6 1.5 0.0 0.0 0.0 0.0 0.0 0.7 4.5 11.2 59.5 67.5
1964 7.5 12.0 22.1 16.0 0.0 0.0 0.0 0.0 0.0 0.0 11.0 12.5 74.0 81.1
1965 12.0 25.6 31.7 6.1 0.0 0.0 0.0 0.0 4.2 0.0 2.5 10.2 98.9 92.3
1966 7.3 23.9 3.8 9.0 2.6 0.0 0.0 0.0 0.0 6.1 8.4 5.2 63.5 66.3
1967 13.3 7.3 9.8 0.0 6.3 0.0 0.0 0.0 0.0 3.1 13.8 31.4 56.4 85.0
1968 0.8 19.9 13.0 15.7 0.0 0.0 0.0 0.0 0.0 0.0 7.5 9.5 97.7 66.4
1969 6.6 5.3 17.5 0.0 0.0 0.0 0.0 0.0 0.0 49.3 10.8 8.2 46.4 97.7
1970 2.0 0.0 56.7 7.5 0.0 0.0 0.0 0.0 1.5 6.2 8.0 4.0 134.5 85.9
1971 8.0 18.7 11.5 9.3 0.0 0.0 0.0 0.0 21.0 10.2 3.2 11.7 67.2 93.6
1972 13.5 6.1 9.9 0.7 0.0 0.0 0.0 0.0 0.0 10.4 26.8 19.5 76.3 86.9
1973 18.5 2.0 14.7 29.8 6.6 0.0 0.0 0.0 0.0 0.0 21.1 16.6 128.3 109.3
1974 8.0 8.4 18.3 11.4 0.0 0.0 0.0 0.0 2.7 1.2 8.4 7.9 83.8 66.3
1975 6.6 12.3 16.2 28.7 0.0 0.0 0.0 0.0 0.0 5.8 11.3 10.8 84.0 91.7
1976 8.3 6.2 16.5 0.0 0.0 0.0 0.0 0.0 0.0 2.1 1.0 7.0 58.9 41.1
1977 3.8 7.4 5.9 12.6 0.0 0.0 0.0 0.0 0.0 0.0 4.6 2.5 39.8 36.8
1978 19.6 10.5 9.9 5.9 23.0 0.0 0.0 0.0 0.0 0.0 2.5 19.5 76.0 90.9
1979 13.0 2.0 14.5 10.2 6.0 0.0 0.0 0.0 0.0 1.0 39.3 23.5 67.7 109.5
1980 14.3 13.8 18.0 5.5 0.0 0.0 0.0 0.0 0.0 2.0 9.5 0.5 115.4 63.6
1981 5.0 7.0 16.0 0.0 0.0 0.0 0.0 0.0 0.0 3.0 2.0 7.3 40.0 40.3
1982 1.0 4.0 3.5 0.0 0.0 0.0 0.0 0.0 0.0 1.5 3.5 23.5 20.8 37.0
1983 0.0 2.3 22.5 17.5 0.0 0.0 0.0 0.0 0.0 0.0 30.1 11.0 70.8 83.4
1984 6.4 9.1 19.2 12.7 0.0 0.0 0.0 0.0 4.2 11.0 0.0 4.8 88.5 67.4
1985 16.3 14.6 20.4 0.9 0.0 0.0 0.0 0.0 11.0 6.0 22.8 16.0 72.2 108.0
1986 2.0 17.8 3.0 13.5 0.0 0.0 0.0 0.0 0.0 7.0 20.3 13.0 92.1 76.6
1987 21.4 23.7 23.0 16.3 0.0 0.0 0.0 0.0 0.0 0.0 13.5 27.5 124.7 125.4
1988 6.5 16.7 24.9 4.7 1.0 0.0 0.0 0.0 0.0 0.0 5.7 31.5 94.8 91.0
1989 14.2 14.8 10.5 15.8 0.0 0.0 0.0 0.0 0.5 8.9 1.8 21.6 92.5 88.1
1990 13.0 13.3 25.0 7.6 0.1 0.0 0.0 0.0 0.0 6.1 17.1 12.7 91.8 94.9
1991 17.0 2.8 2.0 19.1 0.4 0.0 0.0 0.0 0.0 13.6 28.9 0.2 77.2 84.0
1992 10.9 0.0 19.7 0.0 0.0 0.0 0.0 0.0 0.0 0.0 44.7 18.8 73.3 94.1
1993 5.8 9.3 11.9 4.7 0.0 0.1 0.0 0.0 1.4 10.5 27.0 9.0 95.3 79.7
1994 11.5 15.4 14.9 22.8 0.0 0.0 0.0 0.0 0.4 0.0 23.7 10.3 112.5 99.0
1995 12.0 16.3 16.4 24.1 0.8 0.0 0.0 0.0 8.6 3.1 17.8 3.4 104.0 102.5
1996 29.1 5.9 17.7 7.6 0.0 0.0 0.0 0.0 6.1 0.1 16.6 6.1 93.2 89.2
1997 19.0 28.8 14.1 38.6 0.0 0.0 0.0 0.0 0.0 30.1 18.2 9.9 129.4 158.7
1998 10.4 1.7 42.6 19.4 0.0 0.0 0.0 0.0 0.0 0.0 9.5 17.8 132.3 101.4
1999 9.7 1.2 6.5 34.4 T 0.0 0.0 0.0 1.6 6.1 10.5 9.7 . .
2000 3.8 5.4 26.6 8.9 0.0 0.0 0.0 0.0 6.5 0.9 10.9 8.5 . .
2001 10.3 13.1 16.6 10.5 6.5 0 0 0 T 0.3 7.3 4.7 . .
2002 18.5 8.3 22.6 0.1 1.6 0.0 0 0 0 16.1 13.0 0.5
2003 0.5 22.8 34.7 6.2 5.2 0 0 0 0 0.4 7.5 9.9
2004 12.0 18.0 7.9 14.9 . 0 0 0 0 0 17.6 6.7
2005 15.9 3.3 11.2 21.8 0.2 0 0 0 0 T 1.9 6.3
2006 5.5 11.4 23.3 2.9 0.1 T 0 0 0 15.2 12.0 45.5
2007  27.5 15.3 4.5 2.2 T 0.0 0.0 0.0 0.0 0.1 5.9 30.0
2008  10.3 10.4 17.6 7.9 0.7 0.0 0.0 0.0 0.0 0.2 1.3 20.9
2009  13.0 3.9 21.4 20.4 0.0 0.0 0.0 0.0 0.0 0.0 30.1
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec TotalA TotalB

Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1961 - 1990 10.0 10.8 17.4 9.0 1.5 0.0 0.0 0.0 1.5 5.1 11.1 13.0 

Total A: Snow Year (Sep-Jun with June of row year)
Total B: Jan-Dec



*Yes, We really had a trace of snow on June 5th 

Year    JAN    FEB    MAR   APR   MAY   JUN   JUL   AUG   SEP   OCT   NOV   DEC

61-90  10.0   10.8   17.5   9.0   1.6   0.0   0.0   0.0   1.5   5.1   11.1   13.0

[Pages are for curiosity only; there are no guarantees that the data is correct]