| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 52.2 | 57.1 | 62.7 | 69.9 | 78.0 | 86.9 | 94.7 | 94.4 | 87.6 | 74.4 | 58.3 | 50.6 | 72.2 |
| Highest Mean Max. Temperature (F) | 56.8 | 63.5 | 69.0 | 80.8 | 87.7 | 93.9 | 101.3 | 100.3 | 96.3 | 82.6 | 65.6 | 54.4 | 101.3 |
| Year Highest Occurred | 1986 | 1995 | 1992 | 1987 | 1992 | 2000 | 1996 | 1986 | 1974 | 1978 | 1995 | 1980 | 1996 |
| Lowest Mean Max. Temperature (F) | 48.5 | 50.2 | 56.1 | 61.8 | 67.3 | 79.0 | 86.3 | 86.5 | 78.4 | 65.8 | 51.4 | 45.6 | 45.6 |
| Year Lowest Occurred | 1982 | 1999 | 1975 | 1975 | 1998 | 1980 | 1983 | 1976 | 1986 | 1984 | 1994 | 1972 | 1972 |
| Mean Temperature (F) | 43.4 | 47.0 | 50.6 | 55.2 | 61.3 | 68.1 | 74.1 | 73.4 | 67.8 | 58.7 | 49.0 | 43.0 | 57.6 |
| Highest Mean Temperature (F) | 48.0 | 52.2 | 56.4 | 61.2 | 66.6 | 73.3 | 79.1 | 77.6 | 73.0 | 63.8 | 54.2 | 47.6 | 79.1 |
| Year Highest Occurred | 1978 | 1995 | 1978 | 1987 | 1992 | 1977 | 1996 | 1986 | 1991 | 1978 | 1995 | 1981 | 1996 |
| Lowest Mean Temperature (F) | 39.7 | 41.4 | 44.2 | 47.8 | 55.3 | 62.7 | 69.9 | 69.0 | 63.1 | 53.1 | 43.5 | 38.0 | 38.0 |
| Year Lowest Occurred | 1975 | 1990 | 1975 | 1975 | 1998 | 1980 | 1989 | 1979 | 1986 | 1981 | 1994 | 1990 | 1990 |
| Mean Min. Temperature (F) | 34.5 | 36.8 | 38.4 | 40.4 | 44.5 | 49.3 | 53.5 | 52.4 | 47.9 | 43.0 | 39.7 | 35.4 | 43.0 |
| Highest Mean Min. Temperature (F) | 41.5 | 41.2 | 44.3 | 44.0 | 47.9 | 54.5 | 57.3 | 58.1 | 52.6 | 48.6 | 44.3 | 42.3 | 58.1 |
| Year Highest Occurred | 1995 | 1996 | 1978 | 1992 | 1993 | 1977 | 1985 | 1977 | 1983 | 1979 | 1973 | 1973 | 1977 |
| Lowest Mean Min. Temperature (F) | 28.1 | 30.6 | 32.3 | 33.8 | 40.1 | 41.9 | 48.0 | 47.4 | 42.7 | 37.5 | 31.2 | 29.9 | 28.1 |
| Year Lowest Occurred | 1975 | 1989 | 1976 | 1975 | 1975 | 1976 | 1982 | 2000 | 1981 | 2000 | 1993 | 1990 | 1975 |
| Mean Precipitation (in.) | 9.33 | 8.83 | 7.84 | 3.43 | 2.04 | 0.64 | 0.15 | 0.42 | 1.14 | 3.19 | 8.10 | 9.38 | 54.49 |
| Highest Precipitation (in.) | 23.37 | 20.97 | 17.76 | 8.31 | 7.37 | 2.86 | 1.54 | 5.37 | 7.48 | 10.25 | 20.35 | 22.71 | 23.37 |
| Year Highest Occurred | 1995 | 1986 | 1975 | 1993 | 1990 | 1988 | 1983 | 1983 | 1986 | 1975 | 1984 | 1996 | 1995 |
| Lowest Precipitation (in.) | 0.68 | 0.94 | 1.55 | 0.23 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.61 | 0.35 | 0.00 |
| Year Lowest Occurred | 1985 | 1988 | 1988 | 1985 | 1982 | 1999 | 1999 | 1999 | 1999 | 1978 | 1993 | 1976 | 1982 |
| Heating Degree Days (F) | 671. | 506. | 450. | 304. | 154. | 49. | 9. | 2. | 36. | 222. | 480. | 683. | 3566. |
| Cooling Degree Days (F) | 0. | 0. | 2. | 9. | 37. | 142. | 291. | 262. | 118. | 26. | 0. | 0. | 887. |