| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 34.3 | 41.4 | 51.2 | 61.0 | 70.3 | 79.2 | 88.4 | 88.3 | 78.1 | 64.7 | 43.8 | 33.6 | 61.2 |
| Highest Mean Max. Temperature (F) | 41.0 | 50.7 | 62.5 | 72.1 | 79.5 | 86.8 | 94.0 | 94.2 | 85.6 | 75.4 | 51.8 | 40.1 | 94.2 |
| Year Highest Occurred | 1981 | 1991 | 1992 | 1987 | 1992 | 1974 | 1985 | 1971 | 1990 | 1988 | 1976 | 1989 | 1971 |
| Lowest Mean Max. Temperature (F) | 27.1 | 32.7 | 42.6 | 51.6 | 65.5 | 73.0 | 77.9 | 79.1 | 67.4 | 57.7 | 36.9 | 26.7 | 26.7 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1977 | 1984 | 1993 | 1976 | 1986 | 1984 | 1994 | 1990 | 1990 |
| Mean Temperature (F) | 25.9 | 30.9 | 38.8 | 46.2 | 53.9 | 61.3 | 67.7 | 66.8 | 58.0 | 47.5 | 34.4 | 25.9 | 46.4 |
| Highest Mean Temperature (F) | 32.3 | 37.9 | 45.3 | 51.8 | 58.9 | 66.3 | 72.3 | 73.5 | 65.4 | 53.1 | 39.6 | 31.7 | 73.5 |
| Year Highest Occurred | 1981 | 1991 | 1992 | 1987 | 1992 | 1988 | 1975 | 1971 | 1998 | 1988 | 1999 | 1977 | 1971 |
| Lowest Mean Temperature (F) | 15.8 | 20.9 | 32.0 | 39.6 | 50.4 | 56.3 | 59.8 | 62.1 | 51.5 | 42.6 | 27.8 | 16.6 | 15.8 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1982 | 1982 | 1991 | 1993 | 1980 | 1985 | 1985 | 1985 | 1985 | 1979 |
| Mean Min. Temperature (F) | 17.4 | 20.3 | 26.3 | 31.4 | 37.4 | 43.4 | 47.0 | 45.2 | 37.8 | 30.3 | 25.0 | 18.1 | 31.6 |
| Highest Mean Min. Temperature (F) | 25.9 | 27.1 | 31.9 | 34.5 | 41.1 | 50.4 | 51.7 | 52.9 | 46.7 | 35.3 | 31.5 | 26.5 | 52.9 |
| Year Highest Occurred | 1998 | 1992 | 1983 | 1994 | 1994 | 1988 | 1971 | 1971 | 1998 | 1975 | 1995 | 1973 | 1971 |
| Lowest Mean Min. Temperature (F) | 4.6 | 6.4 | 18.7 | 24.0 | 31.4 | 38.4 | 41.7 | 39.6 | 33.4 | 25.3 | 14.5 | 5.3 | 4.6 |
| Year Lowest Occurred | 1979 | 1982 | 1976 | 1982 | 1982 | 1991 | 1993 | 1985 | 1988 | 1991 | 1993 | 1985 | 1979 |
| Mean Precipitation (in.) | 3.82 | 2.77 | 2.45 | 1.77 | 1.74 | 1.40 | 0.64 | 0.49 | 1.18 | 1.46 | 3.44 | 3.87 | 25.03 |
| Highest Precipitation (in.) | 7.81 | 6.68 | 5.24 | 4.45 | 6.86 | 3.24 | 2.30 | 2.34 | 4.53 | 3.46 | 7.07 | 15.73 | 15.73 |
| Year Highest Occurred | 1997 | 1999 | 1974 | 1993 | 1998 | 1993 | 1982 | 1976 | 1986 | 1979 | 1973 | 1996 | 1996 |
| Lowest Precipitation (in.) | 0.29 | 0.67 | 0.20 | 0.31 | 0.03 | 0.20 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.39 | 0.00 |
| Year Lowest Occurred | 1985 | 1977 | 1994 | 1977 | 1992 | 1994 | 2000 | 2000 | 1999 | 1988 | 1976 | 1976 | 2000 |
| Heating Degree Days (F) | 1214. | 957. | 814. | 564. | 348. | 150. | 55. | 65. | 238. | 544. | 919. | 1215. | 7083. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 2. | 38. | 139. | 119. | 27. | 0. | 0. | 0. | 325. |