YEAR |
Winter |
Spring |
Summer |
Fall |
|
D-J-F |
M-A-M |
J-J-A |
S-O-N |
Avg |
|
| 1916 | -6.3 | 11.2 | 24.6 | 9.7 | 9.77 |
| 1917 | -6.3 | 11.1 | 24.9 | 9.3 | 9.75 |
| 1918 | -6 | 10.9 | 22.9 | 8.1 | 8.97 |
| 1919 | -6.5 | 12.9 | 23.8 | 9.3 | 9.86 |
| 1920 | -6 | 11.5 | 24 | 11.7 | 10.3 |
| 1921 | -5.5 | 10.6 | 22.9 | 10.3 | 9.58 |
| 1922 | -4.7 | 11.5 | 24.3 | 11.9 | 10.75 |
| 1923 | -5 | 12.3 | 23.5 | 11.4 | 10.55 |
| 1924 | -4.3 | 11.6 | 24.1 | 10.1 | 10.38 |
| 1925 | -4.3 | 10.8 | 22.6 | 10.5 | 9.91 |
| 1926 | -3.9 | 11.4 | 22.9 | 10.2 | 10.14 |
| 1927 | -5.5 | 10.7 | 23.5 | 10.7 | 9.83 |
| 1928 | -3.8 | 13 | 23.8 | 9.8 | 10.69 |
| 1929 | -4.5 | 13.3 | 23.6 | 9.2 | 10.41 |
| 1930 | -7 | 11.8 | 23.9 | 10.2 | 9.73 |
| 1931 | -4.7 | 12.3 | 24 | 10.3 | 10.47 |
| 1932 | -3.6 | 10.8 | 23.1 | 9.8 | 10.03 |
| 1933 | -4.6 | 11 | 22.7 | 10.2 | 9.81 |
| 1934 | -5.3 | 9.6 | 22.9 | 8.7 | 8.98 |
| 1935 | -5.1 | 11.8 | 23.2 | 10.5 | 10.12 |
| 1936 | -6.4 | 9.1 | 23 | 10.6 | 9.06 |
| 1937 | -4.6 | 11 | 23 | - | 9.79 |
| 1938 | - | - | - | - | - |
| 1939 | -4 | 11.1 | 23.7 | 8.7 | 9.85 |
| 1940 | -4.6 | 11.6 | 22 | 10 | 9.76 |
| 1941 | -4 | 11.3 | 22.8 | 9.9 | 9.98 |
| 1942 | -5.3 | 11.8 | 23.8 | 10 | 10.07 |
| 1943 | -5.2 | 10.8 | 23.4 | 9.4 | 9.63 |
| 1944 | - | - | - | - | - |
| 1945 | - | - | - | - | - |
| 1946 | - | - | - | 10.6 | - |
| 1947 | - | 11 | 23.4 | 9.4 | 9.86 |
| 1948 | -3.3 | - | - | - | - |
| 1949 | - | - | - | - | - |
| 1950 | -4.2 | 10.5 | 21.9 | 8.8 | 9.26 |
| 1951 | -6.7 | 8.9 | 22.5 | 9.1 | 8.43 |
| 1952 | -5.5 | 10 | 22.1 | 9 | 8.91 |
| 1953 | -6.4 | 9.9 | 22.2 | 10.1 | 8.96 |
| 1954 | -4.5 | 11.3 | 21.8 | 9.9 | 9.62 |
| 1955 | -6.7 | 11.3 | 24.3 | 8.9 | 9.45 |
| 1956 | -4.4 | 10.4 | 21.2 | 8.8 | 8.98 |
| 1957 | -6.5 | 10.7 | 22.3 | 9.5 | 9 |
| 1958 | -4.9 | 11.3 | 22.3 | 9.4 | 9.53 |
| 1959 | -3.4 | 11.3 | 22.6 | 9.6 | 10.03 |
| 1960 | -2.9 | 10.8 | 23 | 9.1 | 10.02 |
| 1961 | -4.5 | 12.3 | 23.3 | 10.3 | 10.35 |
| 1962 | -4.3 | 10.5 | 22.2 | 9.2 | 9.38 |
| 1963 | -4.4 | 10.6 | 22.8 | 9.6 | 9.63 |
| 1964 | -5.6 | 11.1 | 21.9 | 10 | 9.35 |
| 1965 | -3.5 | 10.3 | 22.2 | 10.7 | 9.94 |
| 1966 | -3.4 | 11.2 | 22.7 | 9 | 9.87 |
| 1967 | -5.8 | 11.3 | 22.8 | 8.4 | 9.17 |
| 1968 | -7.4 | 11 | 22.4 | 9.5 | 8.88 |
| 1969 | -4.6 | 10.7 | 21.7 | 9.3 | 9.29 |
| 1970 | -4.6 | 9.8 | 21.7 | 9.1 | 9.01 |
| 1971 | -4.8 | 11.1 | 22.1 | 9.7 | 9.51 |
| 1972 | -6 | 11.4 | 22.8 | 9.7 | 9.47 |
| 1973 | -3 | 12.5 | 22.1 | 9.2 | 10.2 |
| 1974 | -4.3 | 11.4 | 22.3 | 9.6 | 9.74 |
| 1975 | -4.1 | 10.8 | 22.9 | 10.6 | 10.07 |
| 1976 | -4.1 | 9.7 | 21.2 | 8.9 | 8.94 |
| 1977 | -5.3 | 11.7 | 21.8 | 10.9 | 9.8 |
| 1978 | -3.2 | 11.8 | 22.7 | 9.8 | 10.26 |
| 1979 | -2.6 | 10.3 | 22 | 9.4 | 9.75 |
| 1980 | -4 | 10.8 | 22.1 | 10.3 | 9.8 |
| 1981 | -4 | 12.1 | 22.5 | 8.6 | 9.79 |
| 1982 | -3.4 | 12.5 | 21.8 | 10 | 10.23 |
| 1983 | -4.4 | 10.9 | 22 | 10.3 | 9.71 |
| 1984 | -5 | 10.4 | 22 | 9.8 | 9.28 |
| 1985 | -5 | 10.8 | 22.5 | 9 | 9.35 |
| 1986 | -4.8 | 11.4 | 22.2 | 8.9 | 9.43 |
| 1987 | -2.5 | 11.6 | 21.9 | 10.3 | 10.33 |
| 1988 | -4.1 | 10.6 | 22 | 10.6 | 9.78 |
| 1989 | -3.2 | 11.5 | 21.9 | 9.9 | 10 |
| 1990 | -2.8 | 10.8 | 22.4 | 11.1 | 10.38 |
| 1991 | - | - | - | - | - |
| 1992 | - | - | 22.2 | 9.9 | - |
| 1993 | -3.5 | 10.8 | 20.6 | 9.5 | 9.36 |
| 1994 | -3.1 | 12.7 | 23.4 | 9.6 | 10.66 |
| 1995 | -2.5 | 11.6 | 22.3 | - | 10.46 |
| 1996 | -3.5 | 10.6 | 21.8 | 10.6 | 9.87 |
| 1997 | -2.4 | 12.9 | 23.8 | 9.7 | 10.98 |
| 1998 | -1.7 | 13.1 | 23.1 | 12.3 | 11.71 |
| 1999 | -1 | 13.3 | 23.7 | 11.4 | 11.83 |
| 2000 | -3.7 | 13.4 | 23.1 | 9.7 | 10.6 |
| 2001 | -1.9 | 13 | 23.5 | 10.7 | 11.3 |
| 2002 | -1.3 | 12.9 | 23 | 9.6 | 11.07 |
| 2003 | -3.4 | 11.7 | 22.1 | 9.8 | 10.05 |
| 2004 | -2.1 | 13.3 | 22.1 | 10.1 | 10.86 |
| 2005 | -3.6 | 13 | 24.2 | 11 | 11.18 |
| 2006 | -3 | 13.5 | 24 | 11.7 | 11.54 |
| 2007 | -1.5 | 13 | 23.4 | 10.6 | 11.36 |
| 2008 | -3.5 | 13 | 23.4 | 11.1 | 10.99 |
| 2009 | -2.1 | 13.6 | 24 | 9.6 | 11.26 |
| 2010 | -2.7 | 11.1 | - | - | - |