| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 47.0 | 53.3 | 62.7 | 71.7 | 79.2 | 86.6 | 93.1 | 92.6 | 84.6 | 74.2 | 60.3 | 50.1 | 71.3 |
| Highest Mean Max. Temperature (F) | 57.8 | 63.7 | 67.9 | 78.8 | 85.4 | 91.7 | 102.2 | 99.2 | 91.6 | 79.3 | 70.4 | 57.9 | 102.2 |
| Year Highest Occurred | 1990 | 1976 | 1986 | 1981 | 1987 | 1988 | 1980 | 1980 | 1998 | 1979 | 1999 | 1984 | 1980 |
| Lowest Mean Max. Temperature (F) | 32.9 | 38.4 | 54.5 | 66.0 | 73.9 | 81.6 | 88.2 | 85.1 | 74.2 | 67.2 | 50.7 | 35.3 | 32.9 |
| Year Lowest Occurred | 1979 | 1978 | 1975 | 1973 | 1976 | 2000 | 1989 | 1992 | 1974 | 1976 | 1972 | 1983 | 1979 |
| Mean Temperature (F) | 36.1 | 41.6 | 50.4 | 59.7 | 68.7 | 76.5 | 82.1 | 80.8 | 73.0 | 62.1 | 49.1 | 39.6 | 60.0 |
| Highest Mean Temperature (F) | 44.8 | 50.9 | 54.5 | 65.7 | 73.9 | 80.4 | 87.8 | 86.1 | 80.7 | 65.6 | 56.9 | 46.8 | 87.8 |
| Year Highest Occurred | 1990 | 1976 | 1974 | 1981 | 1987 | 1977 | 1980 | 1980 | 1998 | 1971 | 1999 | 1984 | 1980 |
| Lowest Mean Temperature (F) | 24.0 | 29.7 | 44.0 | 54.4 | 63.4 | 73.2 | 78.9 | 74.4 | 64.5 | 55.6 | 42.4 | 26.4 | 24.0 |
| Year Lowest Occurred | 1979 | 1978 | 1975 | 1983 | 1976 | 1974 | 1989 | 1992 | 1974 | 1976 | 1976 | 1983 | 1979 |
| Mean Min. Temperature (F) | 25.2 | 29.9 | 38.0 | 47.6 | 58.2 | 66.4 | 71.0 | 68.9 | 61.4 | 50.0 | 37.9 | 29.1 | 48.6 |
| Highest Mean Min. Temperature (F) | 32.1 | 38.0 | 43.2 | 53.4 | 63.9 | 70.2 | 75.1 | 73.0 | 69.8 | 55.6 | 44.2 | 36.9 | 75.1 |
| Year Highest Occurred | 1998 | 1976 | 1973 | 1977 | 1996 | 1990 | 1998 | 1980 | 1998 | 1971 | 1973 | 1971 | 1998 |
| Lowest Mean Min. Temperature (F) | 15.0 | 21.0 | 32.2 | 42.2 | 52.9 | 62.7 | 68.3 | 63.6 | 54.7 | 43.9 | 30.4 | 17.5 | 15.0 |
| Year Lowest Occurred | 1979 | 1978 | 1996 | 1983 | 1976 | 1974 | 1984 | 1992 | 1974 | 1976 | 1976 | 1989 | 1979 |
| Mean Precipitation (in.) | 1.94 | 2.20 | 3.67 | 3.97 | 5.40 | 5.09 | 2.71 | 2.42 | 4.97 | 4.14 | 4.09 | 3.17 | 43.77 |
| Highest Precipitation (in.) | 5.00 | 4.82 | 9.05 | 8.26 | 9.67 | 13.46 | 6.60 | 5.34 | 11.74 | 11.93 | 7.59 | 9.27 | 13.46 |
| Year Highest Occurred | 1990 | 1990 | 1973 | 1976 | 1990 | 1973 | 1995 | 1997 | 1996 | 1981 | 1992 | 1987 | 1973 |
| Lowest Precipitation (in.) | 0.00 | 0.04 | 0.26 | 0.43 | 1.11 | 0.96 | 0.09 | 0.00 | 0.21 | 0.75 | 0.21 | 0.15 | 0.00 |
| Year Lowest Occurred | 1986 | 1996 | 1971 | 1987 | 1972 | 1990 | 1991 | 2000 | 1978 | 1989 | 1989 | 1996 | 1986 |
| Heating Degree Days (F) | 896. | 656. | 455. | 187. | 43. | 2. | 0. | 1. | 23. | 136. | 480. | 788. | 3667. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 26. | 157. | 346. | 527. | 490. | 263. | 46. | 3. | 0. | 1858. |