| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 52.9 | 58.3 | 66.5 | 74.8 | 82.0 | 88.9 | 92.5 | 90.7 | 83.9 | 75.4 | 62.9 | 54.5 | 73.6 |
| Highest Mean Max. Temperature (F) | 60.9 | 69.0 | 73.3 | 82.4 | 90.9 | 97.4 | 99.4 | 97.8 | 92.1 | 82.1 | 72.8 | 61.0 | 99.4 |
| Year Highest Occurred | 1986 | 1976 | 1972 | 1978 | 1996 | 1998 | 1980 | 2000 | 2000 | 1979 | 1999 | 1973 | 1980 |
| Lowest Mean Max. Temperature (F) | 40.9 | 42.1 | 61.6 | 65.5 | 77.0 | 83.2 | 86.8 | 82.7 | 73.6 | 67.9 | 54.1 | 42.3 | 40.9 |
| Year Lowest Occurred | 1979 | 1978 | 1987 | 1997 | 1992 | 1982 | 1976 | 1971 | 1974 | 1976 | 1972 | 1983 | 1979 |
| Mean Temperature (F) | 39.1 | 43.7 | 51.3 | 59.9 | 68.5 | 76.1 | 79.5 | 78.0 | 71.3 | 61.8 | 49.4 | 41.1 | 60.0 |
| Highest Mean Temperature (F) | 44.5 | 51.2 | 56.2 | 65.1 | 75.6 | 81.3 | 84.6 | 83.4 | 77.6 | 65.7 | 56.6 | 45.1 | 84.6 |
| Year Highest Occurred | 1989 | 1976 | 1974 | 1978 | 1996 | 1998 | 1998 | 1999 | 1998 | 1998 | 1999 | 1980 | 1998 |
| Lowest Mean Temperature (F) | 29.9 | 31.9 | 46.6 | 53.0 | 63.8 | 71.5 | 75.0 | 72.2 | 63.5 | 54.2 | 42.7 | 31.2 | 29.9 |
| Year Lowest Occurred | 1979 | 1978 | 1996 | 1997 | 1976 | 1982 | 1976 | 1971 | 1974 | 1976 | 1972 | 1983 | 1979 |
| Mean Min. Temperature (F) | 25.3 | 29.0 | 36.0 | 44.9 | 54.9 | 63.3 | 66.5 | 65.2 | 58.6 | 48.1 | 35.8 | 27.6 | 46.3 |
| Highest Mean Min. Temperature (F) | 29.5 | 35.0 | 40.7 | 50.3 | 60.2 | 67.4 | 69.9 | 69.7 | 63.2 | 53.6 | 41.1 | 32.7 | 69.9 |
| Year Highest Occurred | 1999 | 1992 | 1985 | 1981 | 1996 | 1980 | 1998 | 1999 | 1998 | 1983 | 1983 | 1991 | 1998 |
| Lowest Mean Min. Temperature (F) | 18.7 | 21.6 | 29.6 | 40.4 | 50.1 | 59.1 | 63.2 | 61.6 | 53.0 | 40.4 | 29.7 | 19.5 | 18.7 |
| Year Lowest Occurred | 1977 | 1978 | 1996 | 1997 | 1976 | 1983 | 1976 | 1971 | 1975 | 1976 | 1976 | 1989 | 1977 |
| Mean Precipitation (in.) | 0.68 | 0.96 | 1.03 | 1.87 | 3.05 | 3.10 | 2.05 | 3.05 | 3.46 | 1.91 | 0.95 | 0.84 | 22.95 |
| Highest Precipitation (in.) | 2.62 | 2.87 | 3.36 | 10.33 | 7.05 | 7.68 | 5.27 | 8.00 | 9.24 | 10.32 | 2.54 | 4.03 | 10.33 |
| Year Highest Occurred | 1983 | 1975 | 1979 | 1997 | 1977 | 1982 | 1987 | 1974 | 1995 | 1983 | 1984 | 1991 | 1997 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.03 | 0.08 | 0.25 | 0.17 | 0.19 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1998 | 1974 | 1997 | 1978 | 1998 | 1973 | 1980 | 2000 | 1998 | 1992 | 1999 | 1996 | 1998 |
| Heating Degree Days (F) | 804. | 598. | 427. | 190. | 52. | 3. | 0. | 1. | 26. | 143. | 474. | 741. | 3459. |
| Cooling Degree Days (F) | 0. | 0. | 1. | 37. | 158. | 336. | 449. | 402. | 213. | 41. | 4. | 0. | 1641. |