| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 43.8 | 49.0 | 53.9 | 59.9 | 68.2 | 76.6 | 84.7 | 84.9 | 77.7 | 66.0 | 50.5 | 43.5 | 63.2 |
| Highest Mean Max. Temperature (F) | 51.0 | 56.1 | 59.4 | 69.3 | 77.5 | 83.2 | 89.4 | 89.4 | 85.2 | 76.3 | 57.3 | 48.3 | 89.4 |
| Year Highest Occurred | 1986 | 1991 | 1978 | 1987 | 1992 | 1977 | 1988 | 1981 | 1974 | 1987 | 1995 | 1979 | 1981 |
| Lowest Mean Max. Temperature (F) | 38.3 | 42.3 | 48.8 | 52.0 | 57.0 | 70.5 | 78.9 | 76.3 | 68.9 | 56.2 | 42.4 | 37.9 | 37.9 |
| Year Lowest Occurred | 1993 | 1999 | 1975 | 1975 | 1998 | 1980 | 1993 | 1976 | 1986 | 1984 | 1994 | 1990 | 1990 |
| Mean Temperature (F) | 33.8 | 38.3 | 41.8 | 46.6 | 53.1 | 60.4 | 66.8 | 66.4 | 59.4 | 50.2 | 39.7 | 34.0 | 49.2 |
| Highest Mean Temperature (F) | 40.1 | 43.0 | 46.7 | 52.6 | 59.4 | 65.0 | 70.1 | 70.1 | 64.1 | 58.4 | 45.4 | 39.1 | 70.1 |
| Year Highest Occurred | 1986 | 1995 | 1978 | 1987 | 1992 | 1986 | 1985 | 1986 | 1974 | 1988 | 1995 | 1981 | 1986 |
| Lowest Mean Temperature (F) | 26.7 | 33.5 | 37.7 | 40.3 | 46.0 | 55.6 | 61.2 | 60.7 | 53.4 | 44.5 | 33.0 | 27.3 | 26.7 |
| Year Lowest Occurred | 1977 | 1990 | 1977 | 1975 | 1977 | 1980 | 1983 | 1976 | 1986 | 1984 | 1985 | 1990 | 1977 |
| Mean Min. Temperature (F) | 23.8 | 27.6 | 29.6 | 33.2 | 37.9 | 44.1 | 48.8 | 47.8 | 41.0 | 34.4 | 28.9 | 24.5 | 35.1 |
| Highest Mean Min. Temperature (F) | 32.0 | 32.6 | 34.0 | 38.1 | 41.5 | 49.2 | 52.0 | 50.9 | 44.8 | 41.5 | 35.0 | 32.3 | 52.0 |
| Year Highest Occurred | 1978 | 1980 | 1978 | 1990 | 1997 | 1986 | 1998 | 1986 | 1998 | 1988 | 1988 | 1973 | 1998 |
| Lowest Mean Min. Temperature (F) | 15.0 | 21.7 | 24.9 | 28.7 | 32.4 | 40.3 | 43.3 | 44.2 | 37.8 | 29.9 | 21.0 | 16.7 | 15.0 |
| Year Lowest Occurred | 1977 | 1989 | 1976 | 1975 | 1977 | 1976 | 1983 | 1980 | 1986 | 1985 | 1985 | 1990 | 1977 |
| Mean Precipitation (in.) | 3.68 | 3.30 | 3.54 | 1.88 | 1.36 | 0.82 | 0.32 | 0.42 | 0.49 | 1.36 | 3.11 | 3.36 | 23.64 |
| Highest Precipitation (in.) | 15.02 | 9.26 | 9.58 | 4.57 | 3.74 | 3.17 | 1.66 | 2.35 | 2.44 | 4.98 | 10.10 | 11.64 | 15.02 |
| Year Highest Occurred | 1978 | 1986 | 1974 | 1978 | 1990 | 1982 | 1987 | 1976 | 1978 | 1973 | 1981 | 1996 | 1978 |
| Lowest Precipitation (in.) | 0.07 | 0.07 | 0.45 | 0.30 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.36 | 0.12 | 0.00 |
| Year Lowest Occurred | 1985 | 1971 | 1988 | 1986 | 1976 | 1973 | 1998 | 1994 | 1988 | 1988 | 1980 | 1989 | 1976 |
| Heating Degree Days (F) | 967. | 748. | 721. | 553. | 374. | 170. | 53. | 58. | 197. | 462. | 759. | 961. | 6023. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 3. | 30. | 108. | 100. | 27. | 3. | 0. | 0. | 271. |