| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 58.9 | 62.4 | 66.0 | 73.7 | 82.3 | 93.0 | 96.3 | 94.2 | 89.0 | 78.4 | 66.7 | 59.7 | 76.7 |
| Highest Mean Max. Temperature (F) | 67.8 | 69.3 | 76.8 | 82.9 | 90.4 | 98.8 | 99.6 | 99.1 | 94.3 | 85.3 | 75.9 | 68.4 | 99.6 |
| Year Highest Occurred | 1986 | 1991 | 1972 | 1989 | 1984 | 1974 | 2000 | 1995 | 1979 | 1988 | 1999 | 1980 | 2000 |
| Lowest Mean Max. Temperature (F) | 48.9 | 54.9 | 55.3 | 65.4 | 74.4 | 87.6 | 91.6 | 89.3 | 83.1 | 68.8 | 60.1 | 51.3 | 48.9 |
| Year Lowest Occurred | 1979 | 1993 | 1973 | 1983 | 1977 | 1991 | 1993 | 1971 | 1986 | 1971 | 2000 | 1992 | 1979 |
| Mean Temperature (F) | 42.4 | 45.3 | 48.7 | 54.2 | 62.0 | 70.8 | 78.3 | 77.1 | 70.5 | 59.1 | 48.0 | 42.4 | 58.2 |
| Highest Mean Temperature (F) | 46.7 | 50.6 | 54.0 | 59.4 | 68.9 | 76.3 | 82.9 | 81.4 | 74.7 | 63.5 | 53.9 | 49.0 | 82.9 |
| Year Highest Occurred | 1986 | 1995 | 1972 | 2000 | 1997 | 1981 | 1996 | 1994 | 1997 | 1988 | 1995 | 1980 | 1996 |
| Lowest Mean Temperature (F) | 36.7 | 41.5 | 43.0 | 47.8 | 57.5 | 65.7 | 73.8 | 72.8 | 65.0 | 53.5 | 43.0 | 36.3 | 36.3 |
| Year Lowest Occurred | 1979 | 1974 | 1977 | 1975 | 1977 | 1991 | 1993 | 1979 | 1986 | 1971 | 2000 | 1992 | 1992 |
| Mean Min. Temperature (F) | 25.9 | 28.2 | 31.3 | 34.7 | 41.7 | 48.5 | 60.2 | 60.0 | 51.9 | 39.7 | 29.3 | 25.1 | 39.7 |
| Highest Mean Min. Temperature (F) | 33.2 | 33.8 | 36.9 | 38.3 | 47.5 | 56.3 | 66.3 | 64.9 | 59.3 | 46.6 | 34.3 | 30.2 | 66.3 |
| Year Highest Occurred | 1980 | 1995 | 1978 | 1981 | 1997 | 1981 | 1996 | 1971 | 1997 | 1972 | 1978 | 1984 | 1996 |
| Lowest Mean Min. Temperature (F) | 18.8 | 21.1 | 23.4 | 29.9 | 37.3 | 42.5 | 54.1 | 54.1 | 44.8 | 35.5 | 25.4 | 18.2 | 18.2 |
| Year Lowest Occurred | 1972 | 1974 | 1977 | 1975 | 1991 | 1992 | 1987 | 1974 | 1973 | 1973 | 1992 | 1990 | 1990 |
| Mean Precipitation (in.) | 1.88 | 1.97 | 2.07 | 0.75 | 0.43 | 0.17 | 1.27 | 2.45 | 1.32 | 1.07 | 1.23 | 1.23 | 15.84 |
| Highest Precipitation (in.) | 8.14 | 6.89 | 6.98 | 3.55 | 1.90 | 1.08 | 3.32 | 8.27 | 4.88 | 7.69 | 5.86 | 5.73 | 8.27 |
| Year Highest Occurred | 1993 | 1993 | 1991 | 1988 | 1982 | 1979 | 1990 | 1971 | 1983 | 1972 | 1985 | 1984 | 1971 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.21 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1972 | 1984 | 1997 | 1996 | 1991 | 1996 | 1993 | 1975 | 1993 | 1999 | 1997 | 1976 | 1972 |
| Heating Degree Days (F) | 700. | 551. | 507. | 334. | 148. | 31. | 0. | 1. | 24. | 211. | 509. | 700. | 3716. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 10. | 55. | 204. | 410. | 377. | 186. | 25. | 0. | 0. | 1267. |