| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 41.7 | 49.8 | 59.3 | 67.7 | 76.6 | 87.3 | 92.1 | 89.8 | 82.4 | 70.0 | 54.6 | 43.7 | 67.9 |
| Highest Mean Max. Temperature (F) | 52.5 | 58.5 | 68.1 | 75.1 | 83.0 | 93.0 | 97.0 | 93.8 | 87.8 | 76.8 | 63.9 | 53.7 | 97.0 |
| Year Highest Occurred | 1981 | 1995 | 1972 | 1992 | 2000 | 1977 | 1971 | 1985 | 1979 | 1988 | 1999 | 1980 | 1971 |
| Lowest Mean Max. Temperature (F) | 28.6 | 39.0 | 53.7 | 60.6 | 70.4 | 81.8 | 88.2 | 85.5 | 76.0 | 61.7 | 47.6 | 35.9 | 28.6 |
| Year Lowest Occurred | 1973 | 1974 | 1973 | 1983 | 1980 | 1983 | 1973 | 1999 | 1986 | 1984 | 2000 | 1978 | 1973 |
| Mean Temperature (F) | 30.5 | 37.7 | 46.4 | 53.7 | 62.3 | 71.7 | 77.0 | 75.0 | 66.8 | 54.3 | 41.7 | 32.2 | 54.1 |
| Highest Mean Temperature (F) | 37.6 | 44.9 | 52.5 | 61.4 | 66.4 | 76.6 | 80.6 | 78.4 | 72.1 | 58.9 | 46.3 | 39.8 | 80.6 |
| Year Highest Occurred | 1999 | 1995 | 1972 | 1992 | 2000 | 1994 | 1971 | 1994 | 1998 | 1988 | 1999 | 1980 | 1971 |
| Lowest Mean Temperature (F) | 15.1 | 23.4 | 40.5 | 48.5 | 57.4 | 64.9 | 73.2 | 69.5 | 62.1 | 50.7 | 35.2 | 25.8 | 15.1 |
| Year Lowest Occurred | 1973 | 1974 | 1977 | 1975 | 1980 | 1975 | 1977 | 1975 | 1971 | 1976 | 1979 | 1978 | 1973 |
| Mean Min. Temperature (F) | 19.3 | 25.6 | 33.5 | 39.6 | 47.9 | 56.0 | 61.8 | 60.1 | 51.1 | 38.6 | 28.7 | 20.7 | 40.2 |
| Highest Mean Min. Temperature (F) | 27.8 | 32.1 | 39.2 | 47.6 | 53.1 | 61.6 | 65.0 | 64.3 | 59.1 | 44.2 | 33.7 | 27.8 | 65.0 |
| Year Highest Occurred | 1980 | 1976 | 1978 | 1992 | 1992 | 1990 | 1998 | 1994 | 1998 | 1998 | 1998 | 1977 | 1998 |
| Lowest Mean Min. Temperature (F) | 1.6 | 7.7 | 24.0 | 34.0 | 42.6 | 48.0 | 56.3 | 49.1 | 45.4 | 31.3 | 21.8 | 9.3 | 1.6 |
| Year Lowest Occurred | 1973 | 1974 | 1977 | 1974 | 1977 | 1975 | 1977 | 1975 | 1971 | 1976 | 1974 | 1976 | 1973 |
| Mean Precipitation (in.) | 0.78 | 0.63 | 1.17 | 1.08 | 1.13 | 0.53 | 1.07 | 1.26 | 1.05 | 1.23 | 1.03 | 0.64 | 11.60 |
| Highest Precipitation (in.) | 2.33 | 2.35 | 2.61 | 2.78 | 3.35 | 1.81 | 2.86 | 4.64 | 5.18 | 4.84 | 2.16 | 1.99 | 5.18 |
| Year Highest Occurred | 1980 | 1980 | 1983 | 1997 | 1992 | 1983 | 1999 | 1982 | 1996 | 1972 | 1978 | 1983 | 1996 |
| Lowest Precipitation (in.) | 0.06 | 0.00 | 0.00 | 0.08 | 0.00 | 0.00 | 0.00 | 0.00 | 0.08 | 0.06 | 0.10 | 0.00 | 0.00 |
| Year Lowest Occurred | 1972 | 1988 | 1999 | 1989 | 1989 | 1990 | 1994 | 1998 | 1978 | 1988 | 1995 | 1998 | 1988 |
| Heating Degree Days (F) | 1069. | 765. | 577. | 353. | 141. | 26. | 0. | 2. | 52. | 333. | 700. | 1018. | 5036. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 12. | 55. | 226. | 371. | 311. | 106. | 2. | 0. | 0. | 1083. |