| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 44.5 | 50.2 | 57.9 | 67.1 | 76.0 | 87.2 | 92.0 | 89.2 | 81.4 | 70.2 | 55.3 | 46.2 | 68.1 |
| Highest Mean Max. Temperature (F) | 58.5 | 60.4 | 67.4 | 76.3 | 86.9 | 93.1 | 97.1 | 97.0 | 88.2 | 78.0 | 65.0 | 53.7 | 97.1 |
| Year Highest Occurred | 1986 | 2000 | 1972 | 1981 | 1974 | 1994 | 1974 | 1983 | 1998 | 1975 | 1999 | 1980 | 1974 |
| Lowest Mean Max. Temperature (F) | 31.2 | 31.4 | 51.7 | 58.5 | 68.3 | 79.2 | 87.5 | 84.3 | 73.7 | 61.8 | 45.1 | 30.7 | 30.7 |
| Year Lowest Occurred | 1979 | 1978 | 1983 | 1984 | 1995 | 1989 | 1975 | 1992 | 1973 | 1976 | 1972 | 1983 | 1983 |
| Mean Temperature (F) | 30.3 | 34.9 | 42.3 | 51.3 | 61.0 | 71.8 | 76.7 | 74.7 | 66.4 | 54.5 | 41.0 | 32.3 | 53.1 |
| Highest Mean Temperature (F) | 39.6 | 43.5 | 48.3 | 59.0 | 66.4 | 76.9 | 79.6 | 80.0 | 72.4 | 58.3 | 48.0 | 38.2 | 80.0 |
| Year Highest Occurred | 1986 | 2000 | 1972 | 1981 | 1974 | 1994 | 1978 | 1983 | 1998 | 1973 | 1999 | 1980 | 1983 |
| Lowest Mean Temperature (F) | 17.6 | 19.1 | 37.8 | 44.9 | 56.0 | 66.2 | 73.5 | 70.8 | 61.6 | 47.3 | 33.1 | 19.8 | 17.6 |
| Year Lowest Occurred | 1979 | 1978 | 1980 | 1984 | 1995 | 1989 | 1975 | 1992 | 1973 | 1976 | 1972 | 1983 | 1979 |
| Mean Min. Temperature (F) | 16.0 | 19.6 | 26.7 | 35.4 | 46.0 | 56.3 | 61.3 | 60.2 | 51.3 | 38.8 | 26.6 | 18.4 | 38.1 |
| Highest Mean Min. Temperature (F) | 22.0 | 26.5 | 30.8 | 41.7 | 50.3 | 60.6 | 64.0 | 63.5 | 56.5 | 42.5 | 32.2 | 24.2 | 64.0 |
| Year Highest Occurred | 1998 | 2000 | 1992 | 1981 | 1991 | 1994 | 1998 | 1995 | 1998 | 1998 | 1998 | 1984 | 1998 |
| Lowest Mean Min. Temperature (F) | 4.0 | 6.8 | 20.8 | 30.8 | 41.5 | 53.2 | 59.5 | 56.2 | 47.1 | 32.3 | 20.0 | 8.9 | 4.0 |
| Year Lowest Occurred | 1979 | 1978 | 1978 | 1975 | 1975 | 1989 | 1995 | 1979 | 1974 | 1980 | 1977 | 1983 | 1979 |
| Mean Precipitation (in.) | 0.42 | 0.42 | 1.02 | 1.43 | 2.76 | 2.32 | 3.33 | 2.54 | 1.44 | 1.21 | 0.67 | 0.39 | 17.95 |
| Highest Precipitation (in.) | 1.41 | 1.62 | 3.55 | 4.52 | 5.82 | 7.63 | 11.35 | 7.43 | 4.04 | 4.78 | 2.69 | 1.75 | 11.35 |
| Year Highest Occurred | 1990 | 1987 | 2000 | 1980 | 1978 | 1989 | 1998 | 1994 | 1988 | 2000 | 1972 | 1997 | 1998 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.04 | 0.20 | 0.36 | 0.20 | 0.12 | 0.02 | 0.10 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1986 | 1994 | 1989 | 1972 | 1974 | 1980 | 1983 | 1983 | 1980 | 1980 | 1999 | 1988 | 1986 |
| Heating Degree Days (F) | 1078. | 843. | 703. | 420. | 171. | 22. | 0. | 3. | 66. | 331. | 721. | 1013. | 5371. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 7. | 48. | 225. | 362. | 304. | 106. | 4. | 0. | 0. | 1056. |