| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 25.2 | 31.0 | 41.6 | 56.2 | 68.4 | 78.2 | 85.1 | 83.7 | 74.1 | 60.7 | 40.8 | 29.0 | 56.2 |
| Highest Mean Max. Temperature (F) | 38.3 | 42.6 | 52.7 | 65.5 | 75.2 | 88.4 | 92.6 | 91.0 | 81.7 | 66.1 | 56.5 | 42.8 | 92.6 |
| Year Highest Occurred | 1990 | 1991 | 2000 | 1981 | 1985 | 1988 | 1974 | 1983 | 1979 | 1974 | 1999 | 1979 | 1974 |
| Lowest Mean Max. Temperature (F) | 10.7 | 14.7 | 33.5 | 45.1 | 61.2 | 70.9 | 72.9 | 75.1 | 65.5 | 56.4 | 27.5 | 10.5 | 10.5 |
| Year Lowest Occurred | 1978 | 1978 | 1996 | 1975 | 1996 | 1993 | 1992 | 1992 | 1986 | 1976 | 1985 | 1983 | 1983 |
| Mean Temperature (F) | 14.6 | 20.5 | 30.9 | 44.2 | 57.0 | 66.8 | 72.9 | 70.8 | 60.8 | 47.8 | 30.7 | 18.8 | 44.7 |
| Highest Mean Temperature (F) | 28.9 | 32.3 | 39.3 | 51.0 | 63.8 | 75.0 | 78.6 | 76.8 | 66.7 | 52.9 | 43.1 | 29.8 | 78.6 |
| Year Highest Occurred | 1990 | 1998 | 2000 | 1987 | 1977 | 1988 | 1974 | 1983 | 1998 | 1973 | 1999 | 1997 | 1974 |
| Lowest Mean Temperature (F) | 0.7 | 4.1 | 23.1 | 38.0 | 51.6 | 61.3 | 63.7 | 64.7 | 55.0 | 44.0 | 17.8 | 1.7 | 0.7 |
| Year Lowest Occurred | 1978 | 1979 | 1996 | 1975 | 1979 | 1993 | 1992 | 1992 | 1993 | 1976 | 1985 | 1983 | 1978 |
| Mean Min. Temperature (F) | 3.9 | 10.0 | 20.2 | 32.2 | 45.5 | 55.3 | 60.6 | 57.8 | 47.5 | 34.9 | 20.6 | 8.6 | 33.1 |
| Highest Mean Min. Temperature (F) | 19.4 | 23.7 | 27.8 | 38.7 | 53.1 | 61.6 | 64.6 | 62.7 | 52.7 | 40.1 | 29.6 | 21.8 | 64.6 |
| Year Highest Occurred | 1990 | 1998 | 1973 | 1977 | 1977 | 1988 | 1975 | 1983 | 1998 | 1973 | 1999 | 1997 | 1975 |
| Lowest Mean Min. Temperature (F) | -11.2 | -7.7 | 11.9 | 26.9 | 39.6 | 50.8 | 54.5 | 53.5 | 42.2 | 31.0 | 8.1 | -7.1 | -11.2 |
| Year Lowest Occurred | 1982 | 1979 | 1975 | 1979 | 1979 | 1982 | 1992 | 1985 | 1984 | 1987 | 1985 | 1983 | 1982 |
| Mean Precipitation (in.) | 0.41 | 0.55 | 1.29 | 2.11 | 3.14 | 2.90 | 2.60 | 2.01 | 1.80 | 1.77 | 0.74 | 0.44 | 19.76 |
| Highest Precipitation (in.) | 1.65 | 1.37 | 5.45 | 6.37 | 6.67 | 6.18 | 5.92 | 4.21 | 6.46 | 8.56 | 1.96 | 2.10 | 8.56 |
| Year Highest Occurred | 1997 | 1977 | 1977 | 1986 | 1995 | 1990 | 1997 | 1998 | 1996 | 1998 | 1983 | 1996 | 1998 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.02 | 0.22 | 0.21 | 0.65 | 0.00 | 0.18 | 0.00 | 0.05 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 2000 | 1983 | 1971 | 1996 | 1992 | 1989 | 1976 | 1976 | 1979 | 1978 | 1999 | 1986 | 2000 |
| Heating Degree Days (F) | 1564. | 1246. | 1057. | 625. | 279. | 66. | 23. | 33. | 176. | 534. | 1029. | 1432. | 8064. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 1. | 29. | 120. | 267. | 212. | 50. | 0. | 0. | 0. | 679. |