| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 50.1 | 54.9 | 59.6 | 64.6 | 70.9 | 77.7 | 85.6 | 86.3 | 80.9 | 69.1 | 55.7 | 48.9 | 67.0 |
| Highest Mean Max. Temperature (F) | 54.2 | 61.9 | 64.6 | 72.8 | 80.9 | 82.5 | 91.4 | 91.2 | 88.9 | 77.1 | 60.6 | 53.7 | 91.4 |
| Year Highest Occurred | 1986 | 1995 | 1992 | 1987 | 1992 | 2000 | 1996 | 1986 | 1974 | 1987 | 1999 | 1980 | 1996 |
| Lowest Mean Max. Temperature (F) | 42.6 | 46.6 | 53.8 | 58.1 | 64.1 | 72.5 | 78.0 | 81.1 | 74.1 | 64.3 | 48.7 | 43.0 | 42.6 |
| Year Lowest Occurred | 1979 | 1989 | 1975 | 1975 | 1998 | 1980 | 1993 | 1975 | 1986 | 1997 | 1985 | 1990 | 1979 |
| Mean Temperature (F) | 42.5 | 45.7 | 49.0 | 52.7 | 58.2 | 64.1 | 70.2 | 70.5 | 65.4 | 56.5 | 47.7 | 42.0 | 55.4 |
| Highest Mean Temperature (F) | 46.7 | 51.3 | 53.5 | 57.0 | 64.2 | 68.1 | 74.7 | 75.1 | 69.0 | 60.9 | 52.4 | 46.5 | 75.1 |
| Year Highest Occurred | 1998 | 1995 | 1993 | 1989 | 1992 | 1992 | 1996 | 1977 | 1974 | 1988 | 1999 | 1995 | 1977 |
| Lowest Mean Temperature (F) | 36.2 | 36.8 | 44.7 | 46.6 | 55.0 | 59.8 | 65.3 | 66.8 | 61.1 | 52.7 | 41.5 | 35.3 | 35.3 |
| Year Lowest Occurred | 1979 | 1989 | 1975 | 1975 | 1991 | 1976 | 1993 | 1975 | 1985 | 1972 | 1985 | 1990 | 1990 |
| Mean Min. Temperature (F) | 34.8 | 36.5 | 38.4 | 40.7 | 45.5 | 50.5 | 54.7 | 54.7 | 49.9 | 43.9 | 39.6 | 35.1 | 43.7 |
| Highest Mean Min. Temperature (F) | 40.3 | 41.5 | 43.5 | 44.8 | 49.4 | 54.2 | 57.9 | 59.2 | 55.6 | 50.8 | 44.8 | 40.1 | 59.2 |
| Year Highest Occurred | 1998 | 1991 | 1993 | 1992 | 1980 | 1992 | 1996 | 1977 | 1979 | 1979 | 1995 | 1995 | 1977 |
| Lowest Mean Min. Temperature (F) | 29.3 | 26.9 | 33.6 | 35.0 | 41.5 | 45.6 | 52.3 | 50.6 | 45.6 | 39.5 | 32.5 | 27.5 | 26.9 |
| Year Lowest Occurred | 1977 | 1989 | 1976 | 1975 | 1976 | 1976 | 1971 | 1973 | 1971 | 1974 | 1993 | 1990 | 1989 |
| Mean Precipitation (in.) | 4.97 | 4.10 | 3.81 | 2.75 | 1.82 | 0.92 | 0.44 | 0.67 | 1.07 | 2.27 | 5.42 | 5.42 | 33.66 |
| Highest Precipitation (in.) | 9.92 | 9.75 | 6.99 | 5.61 | 6.33 | 2.67 | 2.98 | 3.30 | 3.70 | 4.66 | 15.91 | 15.77 | 15.91 |
| Year Highest Occurred | 1995 | 1986 | 1983 | 1993 | 1998 | 1992 | 1987 | 1976 | 1986 | 1979 | 1973 | 1996 | 1973 |
| Lowest Precipitation (in.) | 0.58 | 1.02 | 1.25 | 0.88 | 0.27 | 0.13 | 0.00 | 0.00 | 0.00 | 0.06 | 1.09 | 0.84 | 0.00 |
| Year Lowest Occurred | 1985 | 1973 | 2000 | 1977 | 1982 | 1974 | 1999 | 2000 | 1999 | 1987 | 1976 | 1976 | 1999 |
| Heating Degree Days (F) | 699. | 540. | 496. | 373. | 222. | 85. | 19. | 11. | 72. | 269. | 520. | 712. | 4018. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 1. | 11. | 57. | 178. | 181. | 83. | 5. | 0. | 0. | 516. |