| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 59.3 | 65.0 | 72.3 | 80.0 | 89.1 | 97.2 | 97.4 | 94.8 | 88.9 | 80.4 | 68.0 | 59.4 | 79.3 |
| Highest Mean Max. Temperature (F) | 66.6 | 72.4 | 79.2 | 86.8 | 97.0 | 103.2 | 102.3 | 99.3 | 95.2 | 86.4 | 75.0 | 65.3 | 103.2 |
| Year Highest Occurred | 2000 | 2000 | 1972 | 1989 | 1996 | 1980 | 1980 | 1994 | 1977 | 1979 | 1999 | 1977 | 1980 |
| Lowest Mean Max. Temperature (F) | 52.1 | 58.7 | 66.4 | 72.2 | 84.3 | 92.2 | 91.0 | 87.9 | 82.5 | 74.5 | 60.5 | 53.3 | 52.1 |
| Year Lowest Occurred | 1979 | 1973 | 1981 | 1983 | 1992 | 1986 | 1991 | 1990 | 1991 | 1984 | 1980 | 1997 | 1979 |
| Mean Temperature (F) | 42.3 | 47.3 | 53.6 | 61.0 | 70.7 | 78.9 | 81.1 | 78.8 | 72.3 | 62.0 | 49.8 | 42.1 | 61.7 |
| Highest Mean Temperature (F) | 46.7 | 52.4 | 58.3 | 66.8 | 76.9 | 84.5 | 84.8 | 82.8 | 76.9 | 65.1 | 54.5 | 47.0 | 84.8 |
| Year Highest Occurred | 2000 | 1995 | 1974 | 1986 | 1996 | 1990 | 1980 | 1994 | 1998 | 1987 | 1999 | 1977 | 1980 |
| Lowest Mean Temperature (F) | 37.4 | 43.0 | 49.5 | 55.1 | 66.8 | 75.4 | 77.6 | 74.5 | 67.9 | 56.4 | 43.4 | 37.0 | 37.0 |
| Year Lowest Occurred | 1979 | 1985 | 1987 | 1983 | 1983 | 1992 | 1991 | 1990 | 1974 | 1976 | 1976 | 1989 | 1989 |
| Mean Min. Temperature (F) | 25.3 | 29.5 | 34.8 | 42.0 | 52.2 | 60.5 | 64.8 | 62.8 | 55.7 | 43.6 | 31.5 | 24.7 | 44.0 |
| Highest Mean Min. Temperature (F) | 32.3 | 35.9 | 38.9 | 48.0 | 56.8 | 66.2 | 67.4 | 66.4 | 60.8 | 49.0 | 37.8 | 31.2 | 67.4 |
| Year Highest Occurred | 1993 | 1995 | 1995 | 1986 | 1996 | 1990 | 1980 | 1994 | 1997 | 1983 | 1978 | 1984 | 1980 |
| Lowest Mean Min. Temperature (F) | 20.1 | 23.6 | 30.7 | 37.0 | 45.2 | 55.8 | 61.5 | 59.6 | 52.1 | 37.5 | 25.1 | 18.3 | 18.3 |
| Year Lowest Occurred | 1990 | 1984 | 1988 | 1980 | 1983 | 1983 | 1985 | 1971 | 1979 | 1976 | 1976 | 1989 | 1989 |
| Mean Precipitation (in.) | 0.34 | 0.32 | 0.25 | 0.16 | 0.99 | 0.92 | 1.35 | 1.44 | 1.46 | 0.92 | 0.49 | 0.46 | 9.10 |
| Highest Precipitation (in.) | 1.59 | 0.87 | 1.17 | 0.98 | 4.13 | 3.99 | 3.31 | 4.16 | 4.77 | 3.27 | 2.00 | 2.62 | 4.77 |
| Year Highest Occurred | 1991 | 2000 | 1999 | 1981 | 1987 | 1996 | 1991 | 1990 | 1991 | 1984 | 1980 | 1991 | 1991 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 2000 | 1999 | 1996 | 2000 | 2000 | 1998 | 1983 | 1983 | 2000 | 1979 | 1999 | 2000 | 2000 |
| Heating Degree Days (F) | 703. | 497. | 356. | 163. | 27. | 0. | 0. | 0. | 11. | 131. | 462. | 712. | 3062. |
| Cooling Degree Days (F) | 0. | 0. | 2. | 42. | 202. | 415. | 499. | 428. | 230. | 39. | 4. | 0. | 1861. |