| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 50.4 | 55.3 | 63.2 | 71.6 | 79.5 | 87.9 | 91.1 | 89.2 | 83.1 | 73.9 | 60.6 | 51.6 | 71.5 |
| Highest Mean Max. Temperature (F) | 59.0 | 65.2 | 70.6 | 78.0 | 88.8 | 96.9 | 98.1 | 94.5 | 89.8 | 79.6 | 70.7 | 57.0 | 98.1 |
| Year Highest Occurred | 1986 | 2000 | 1972 | 1978 | 1996 | 1990 | 1998 | 2000 | 2000 | 1979 | 1999 | 1994 | 1998 |
| Lowest Mean Max. Temperature (F) | 37.8 | 40.5 | 58.7 | 63.7 | 75.0 | 81.5 | 85.9 | 83.8 | 73.2 | 66.7 | 51.2 | 39.6 | 37.8 |
| Year Lowest Occurred | 1979 | 1978 | 1987 | 1997 | 1976 | 1989 | 1976 | 1971 | 1974 | 1976 | 1972 | 1983 | 1979 |
| Mean Temperature (F) | 36.3 | 40.6 | 47.6 | 56.0 | 65.1 | 74.1 | 77.8 | 76.1 | 69.5 | 59.0 | 46.1 | 37.7 | 57.2 |
| Highest Mean Temperature (F) | 43.1 | 47.9 | 53.2 | 61.0 | 72.7 | 79.9 | 82.3 | 80.2 | 74.2 | 62.2 | 51.6 | 42.8 | 82.3 |
| Year Highest Occurred | 1986 | 1976 | 1974 | 1978 | 1996 | 1990 | 1998 | 1983 | 1998 | 1979 | 1999 | 1980 | 1998 |
| Lowest Mean Temperature (F) | 27.1 | 30.7 | 43.7 | 49.6 | 60.9 | 69.4 | 74.3 | 72.4 | 62.2 | 52.3 | 39.5 | 27.8 | 27.1 |
| Year Lowest Occurred | 1979 | 1978 | 1998 | 1973 | 1976 | 1989 | 1976 | 1971 | 1974 | 1976 | 1972 | 1983 | 1979 |
| Mean Min. Temperature (F) | 22.2 | 25.8 | 32.0 | 40.4 | 50.7 | 60.2 | 64.4 | 63.0 | 55.8 | 44.1 | 31.6 | 23.8 | 42.8 |
| Highest Mean Min. Temperature (F) | 27.2 | 31.4 | 37.5 | 46.1 | 56.6 | 63.7 | 67.1 | 66.0 | 59.4 | 49.5 | 36.6 | 29.3 | 67.1 |
| Year Highest Occurred | 1986 | 1976 | 1974 | 1981 | 1996 | 1980 | 1980 | 1983 | 1980 | 1983 | 1983 | 1984 | 1980 |
| Lowest Mean Min. Temperature (F) | 16.4 | 19.9 | 25.8 | 35.3 | 46.2 | 56.5 | 61.9 | 60.6 | 51.1 | 37.9 | 25.4 | 15.9 | 15.9 |
| Year Lowest Occurred | 1979 | 1994 | 1996 | 1973 | 1983 | 1983 | 1990 | 1992 | 1974 | 1976 | 1993 | 1983 | 1983 |
| Mean Precipitation (in.) | 0.59 | 0.72 | 1.05 | 1.31 | 2.99 | 3.42 | 2.32 | 2.65 | 2.40 | 1.63 | 0.87 | 0.76 | 20.71 |
| Highest Precipitation (in.) | 2.32 | 2.64 | 3.03 | 6.34 | 7.05 | 9.98 | 5.68 | 7.72 | 6.17 | 6.58 | 1.84 | 3.10 | 9.98 |
| Year Highest Occurred | 1999 | 1998 | 1973 | 1997 | 1997 | 2000 | 1993 | 1986 | 1985 | 1998 | 1978 | 1991 | 2000 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.23 | 0.46 | 0.15 | 0.05 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1996 | 2000 | 1997 | 1996 | 1984 | 1990 | 1980 | 2000 | 2000 | 1992 | 1999 | 1976 | 1996 |
| Heating Degree Days (F) | 889. | 685. | 540. | 286. | 92. | 10. | 0. | 1. | 36. | 205. | 567. | 845. | 4156. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 15. | 95. | 280. | 395. | 346. | 169. | 18. | 0. | 0. | 1318. |