| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 31.0 | 39.5 | 52.2 | 63.4 | 71.8 | 79.4 | 87.6 | 88.0 | 78.2 | 62.9 | 43.1 | 31.5 | 60.7 |
| Highest Mean Max. Temperature (F) | 39.4 | 49.4 | 61.4 | 69.5 | 78.1 | 87.9 | 96.4 | 95.5 | 86.5 | 69.1 | 50.0 | 36.5 | 96.4 |
| Year Highest Occurred | 1990 | 1991 | 1992 | 1987 | 1992 | 1992 | 1985 | 1986 | 1990 | 1988 | 1987 | 1989 | 1985 |
| Lowest Mean Max. Temperature (F) | 19.8 | 31.5 | 43.6 | 58.1 | 66.0 | 72.3 | 80.3 | 78.9 | 71.5 | 58.3 | 33.1 | 23.0 | 19.8 |
| Year Lowest Occurred | 1979 | 1975 | 1971 | 1982 | 1984 | 1980 | 1983 | 1975 | 1985 | 1971 | 1985 | 1983 | 1979 |
| Mean Temperature (F) | 22.7 | 30.0 | 40.0 | 48.8 | 56.7 | 63.6 | 70.3 | 70.1 | 60.8 | 47.8 | 33.9 | 23.7 | 47.4 |
| Highest Mean Temperature (F) | 30.9 | 39.1 | 47.5 | 53.3 | 61.9 | 70.8 | 75.8 | 75.3 | 66.9 | 52.7 | 41.1 | 30.6 | 75.8 |
| Year Highest Occurred | 1981 | 1991 | 1992 | 1987 | 1993 | 1992 | 1985 | 1986 | 1990 | 1988 | 1999 | 1989 | 1985 |
| Lowest Mean Temperature (F) | 9.5 | 20.3 | 33.3 | 43.8 | 51.6 | 58.2 | 64.5 | 64.4 | 55.0 | 44.4 | 21.9 | 13.3 | 9.5 |
| Year Lowest Occurred | 1979 | 1985 | 1971 | 1982 | 1984 | 1981 | 1983 | 1980 | 1972 | 1990 | 1985 | 1984 | 1979 |
| Mean Min. Temperature (F) | 14.4 | 20.4 | 27.7 | 34.2 | 41.6 | 47.7 | 52.9 | 52.2 | 43.3 | 32.7 | 24.6 | 15.8 | 34.0 |
| Highest Mean Min. Temperature (F) | 24.9 | 29.8 | 33.5 | 37.6 | 45.9 | 53.7 | 58.3 | 56.8 | 47.8 | 36.2 | 34.2 | 24.7 | 58.3 |
| Year Highest Occurred | 1981 | 1992 | 1992 | 1990 | 1993 | 1992 | 1998 | 1977 | 1998 | 1988 | 1999 | 1989 | 1998 |
| Lowest Mean Min. Temperature (F) | -0.8 | 8.6 | 22.9 | 29.4 | 37.2 | 43.7 | 48.6 | 47.0 | 38.3 | 29.5 | 10.7 | 2.8 | -0.8 |
| Year Lowest Occurred | 1979 | 1985 | 1985 | 1982 | 1984 | 1981 | 1983 | 1980 | 1972 | 1990 | 1985 | 1984 | 1979 |
| Mean Precipitation (in.) | 1.54 | 1.42 | 1.13 | 0.82 | 1.15 | 0.89 | 0.49 | 0.61 | 0.60 | 0.70 | 1.79 | 1.96 | 13.10 |
| Highest Precipitation (in.) | 4.03 | 3.31 | 3.35 | 2.82 | 3.78 | 3.19 | 3.03 | 2.89 | 2.47 | 2.12 | 6.16 | 4.39 | 6.16 |
| Year Highest Occurred | 1983 | 1998 | 1995 | 1975 | 1990 | 1992 | 1993 | 1976 | 1986 | 1981 | 1983 | 1987 | 1983 |
| Lowest Precipitation (in.) | 0.00 | 0.04 | 0.07 | 0.00 | 0.00 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.24 | 0.00 |
| Year Lowest Occurred | 1977 | 1988 | 1981 | 1999 | 1973 | 1973 | 1988 | 1996 | 1999 | 1988 | 1976 | 1989 | 1977 |
| Heating Degree Days (F) | 1311. | 982. | 776. | 486. | 269. | 120. | 27. | 27. | 186. | 533. | 935. | 1282. | 6934. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 11. | 77. | 189. | 185. | 59. | 0. | 0. | 0. | 521. |