| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 38.9 | 45.5 | 53.9 | 62.3 | 72.6 | 84.4 | 91.9 | 90.3 | 81.5 | 67.9 | 51.9 | 40.3 | 65.1 |
| Highest Mean Max. Temperature (F) | 46.1 | 56.4 | 62.3 | 70.7 | 79.9 | 91.0 | 97.2 | 94.5 | 88.0 | 76.9 | 62.0 | 49.6 | 97.2 |
| Year Highest Occurred | 1998 | 1995 | 1972 | 1992 | 1994 | 1977 | 1989 | 1994 | 1979 | 1988 | 1999 | 1980 | 1989 |
| Lowest Mean Max. Temperature (F) | 29.5 | 35.9 | 46.4 | 53.2 | 65.8 | 75.3 | 88.0 | 86.7 | 76.0 | 60.3 | 40.3 | 31.3 | 29.5 |
| Year Lowest Occurred | 1989 | 1989 | 1973 | 1975 | 1995 | 1998 | 1999 | 1999 | 1986 | 1984 | 2000 | 1990 | 1989 |
| Mean Temperature (F) | 27.0 | 32.7 | 40.4 | 47.5 | 56.5 | 66.6 | 73.9 | 72.6 | 63.8 | 51.6 | 38.5 | 28.3 | 50.0 |
| Highest Mean Temperature (F) | 35.4 | 41.1 | 46.5 | 54.8 | 62.3 | 72.1 | 78.0 | 76.7 | 69.3 | 57.8 | 45.2 | 36.9 | 78.0 |
| Year Highest Occurred | 2000 | 1995 | 1986 | 1992 | 1994 | 1977 | 1989 | 1994 | 1990 | 1988 | 1999 | 1977 | 1989 |
| Lowest Mean Temperature (F) | 16.4 | 24.1 | 34.0 | 40.7 | 51.1 | 59.4 | 69.0 | 69.6 | 59.0 | 46.3 | 30.2 | 19.1 | 16.4 |
| Year Lowest Occurred | 1989 | 1989 | 1976 | 1975 | 1995 | 1998 | 1993 | 1976 | 1971 | 1984 | 2000 | 1990 | 1989 |
| Mean Min. Temperature (F) | 15.1 | 19.9 | 26.9 | 32.6 | 40.3 | 48.8 | 55.9 | 54.8 | 46.1 | 35.3 | 25.1 | 16.2 | 34.8 |
| Highest Mean Min. Temperature (F) | 26.6 | 28.2 | 33.4 | 38.8 | 44.7 | 53.2 | 58.9 | 58.8 | 51.3 | 39.8 | 29.0 | 24.3 | 58.9 |
| Year Highest Occurred | 2000 | 2000 | 1992 | 1992 | 1993 | 1977 | 1999 | 2000 | 1990 | 1992 | 1981 | 1977 | 1999 |
| Lowest Mean Min. Temperature (F) | 3.3 | 11.4 | 19.3 | 28.2 | 35.7 | 43.4 | 49.2 | 50.4 | 39.3 | 31.2 | 19.7 | 6.9 | 3.3 |
| Year Lowest Occurred | 1989 | 1984 | 1976 | 1975 | 1975 | 1998 | 1993 | 1976 | 1971 | 1971 | 1979 | 1990 | 1989 |
| Mean Precipitation (in.) | 1.35 | 1.37 | 1.64 | 1.49 | 1.63 | 0.78 | 0.77 | 0.82 | 1.21 | 1.62 | 1.24 | 1.12 | 15.04 |
| Highest Precipitation (in.) | 3.58 | 3.82 | 3.09 | 3.67 | 4.36 | 2.90 | 1.85 | 2.37 | 6.25 | 3.89 | 2.70 | 3.27 | 6.25 |
| Year Highest Occurred | 1997 | 1980 | 1983 | 1999 | 1981 | 1984 | 1998 | 1987 | 1982 | 1981 | 1978 | 1972 | 1982 |
| Lowest Precipitation (in.) | 0.38 | 0.41 | 0.10 | 0.11 | 0.24 | 0.00 | 0.02 | 0.07 | 0.00 | 0.06 | 0.29 | 0.17 | 0.00 |
| Year Lowest Occurred | 1972 | 1988 | 1972 | 1992 | 1976 | 1979 | 1978 | 1985 | 1979 | 1995 | 1999 | 1976 | 1979 |
| Heating Degree Days (F) | 1179. | 904. | 763. | 527. | 282. | 77. | 4. | 3. | 105. | 418. | 794. | 1138. | 6194. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 1. | 18. | 124. | 280. | 236. | 69. | 3. | 0. | 0. | 731. |