| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 53.1 | 56.0 | 59.2 | 64.9 | 72.7 | 81.3 | 88.3 | 88.3 | 82.7 | 72.9 | 59.4 | 52.9 | 69.3 |
| Highest Mean Max. Temperature (F) | 60.7 | 66.5 | 67.6 | 75.7 | 80.2 | 87.9 | 93.6 | 93.7 | 90.0 | 81.8 | 68.8 | 60.4 | 93.7 |
| Year Highest Occurred | 1984 | 1991 | 1972 | 1987 | 1992 | 1981 | 1972 | 1981 | 1974 | 1988 | 1976 | 1989 | 1981 |
| Lowest Mean Max. Temperature (F) | 45.9 | 48.7 | 49.5 | 54.8 | 60.9 | 72.3 | 81.8 | 82.6 | 72.8 | 65.6 | 48.5 | 44.2 | 44.2 |
| Year Lowest Occurred | 1993 | 1998 | 1991 | 1975 | 1998 | 1998 | 1983 | 1976 | 1986 | 1984 | 1994 | 1971 | 1971 |
| Mean Temperature (F) | 44.0 | 45.5 | 47.7 | 52.4 | 59.6 | 67.3 | 74.1 | 73.8 | 69.0 | 60.3 | 49.3 | 44.0 | 57.3 |
| Highest Mean Temperature (F) | 49.8 | 52.8 | 54.4 | 61.3 | 66.3 | 72.7 | 78.6 | 77.5 | 75.4 | 68.0 | 56.9 | 49.4 | 78.6 |
| Year Highest Occurred | 1984 | 1991 | 1972 | 1987 | 1992 | 1985 | 1972 | 1992 | 1974 | 1988 | 1976 | 1989 | 1972 |
| Lowest Mean Temperature (F) | 38.3 | 40.9 | 39.7 | 44.0 | 51.3 | 60.1 | 67.1 | 67.6 | 60.2 | 53.9 | 40.2 | 36.4 | 36.4 |
| Year Lowest Occurred | 1982 | 1993 | 1991 | 1975 | 1977 | 1998 | 1983 | 1976 | 1986 | 1984 | 1994 | 1971 | 1971 |
| Mean Min. Temperature (F) | 34.8 | 35.0 | 36.1 | 39.8 | 46.4 | 53.2 | 59.8 | 59.3 | 55.3 | 47.7 | 39.1 | 35.0 | 45.1 |
| Highest Mean Min. Temperature (F) | 40.3 | 39.0 | 41.1 | 46.9 | 52.3 | 58.0 | 63.7 | 63.7 | 60.8 | 54.1 | 44.9 | 40.5 | 63.7 |
| Year Highest Occurred | 1986 | 1991 | 1972 | 1987 | 1992 | 1977 | 1996 | 1992 | 1974 | 1988 | 1976 | 1980 | 1996 |
| Lowest Mean Min. Temperature (F) | 30.1 | 29.6 | 29.9 | 33.1 | 39.7 | 47.8 | 52.4 | 52.6 | 47.7 | 42.2 | 31.9 | 28.6 | 28.6 |
| Year Lowest Occurred | 1979 | 1990 | 1991 | 1975 | 1977 | 1998 | 1983 | 1976 | 1986 | 1984 | 1994 | 1971 | 1971 |
| Mean Precipitation (in.) | 7.92 | 7.96 | 7.33 | 3.64 | 2.17 | 0.93 | 0.31 | 0.28 | 1.21 | 2.71 | 5.82 | 5.95 | 46.23 |
| Highest Precipitation (in.) | 20.59 | 26.65 | 22.76 | 9.18 | 7.32 | 4.13 | 3.41 | 2.81 | 4.96 | 9.17 | 20.85 | 16.25 | 26.65 |
| Year Highest Occurred | 1997 | 1986 | 1995 | 1995 | 1998 | 1998 | 1974 | 1976 | 1982 | 1982 | 1983 | 1996 | 1986 |
| Lowest Precipitation (in.) | 0.23 | 0.54 | 1.38 | 0.63 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.48 | 0.00 | 0.00 |
| Year Lowest Occurred | 1991 | 1988 | 1994 | 1992 | 1985 | 1994 | 2000 | 2000 | 1995 | 1995 | 1995 | 1989 | 1985 |
| Heating Degree Days (F) | 653. | 546. | 540. | 393. | 220. | 75. | 10. | 6. | 53. | 202. | 477. | 653. | 3828. |
| Cooling Degree Days (F) | 0. | 0. | 1. | 14. | 51. | 142. | 291. | 279. | 175. | 57. | 5. | 0. | 1015. |