| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 45.9 | 49.4 | 55.6 | 62.6 | 70.9 | 80.6 | 83.0 | 80.7 | 74.9 | 66.2 | 53.9 | 46.6 | 64.2 |
| Highest Mean Max. Temperature (F) | 55.1 | 58.2 | 63.8 | 69.7 | 80.6 | 87.4 | 88.6 | 86.3 | 82.7 | 72.0 | 65.9 | 54.6 | 88.6 |
| Year Highest Occurred | 2000 | 2000 | 1989 | 1992 | 1996 | 1990 | 1980 | 2000 | 2000 | 1992 | 1999 | 1980 | 1980 |
| Lowest Mean Max. Temperature (F) | 37.1 | 42.9 | 48.8 | 52.1 | 64.9 | 75.5 | 79.4 | 77.1 | 70.0 | 55.8 | 43.5 | 40.5 | 37.1 |
| Year Lowest Occurred | 1979 | 1983 | 1973 | 1973 | 1983 | 1983 | 1988 | 1971 | 1974 | 1984 | 1972 | 1982 | 1979 |
| Mean Temperature (F) | 32.5 | 35.8 | 41.3 | 47.7 | 55.9 | 65.0 | 68.2 | 66.5 | 60.7 | 51.4 | 40.1 | 33.2 | 49.9 |
| Highest Mean Temperature (F) | 39.8 | 43.3 | 47.2 | 52.6 | 63.9 | 70.0 | 71.5 | 70.8 | 65.6 | 54.5 | 48.6 | 40.2 | 71.5 |
| Year Highest Occurred | 2000 | 2000 | 1989 | 2000 | 1996 | 1990 | 1980 | 2000 | 2000 | 1995 | 1999 | 1980 | 1980 |
| Lowest Mean Temperature (F) | 24.6 | 31.3 | 36.6 | 37.9 | 51.4 | 61.2 | 65.6 | 63.2 | 56.2 | 44.6 | 31.6 | 27.9 | 24.6 |
| Year Lowest Occurred | 1979 | 1982 | 1973 | 1973 | 1983 | 1983 | 1972 | 1971 | 1974 | 1984 | 1972 | 1974 | 1979 |
| Mean Min. Temperature (F) | 19.1 | 22.2 | 26.9 | 32.7 | 40.9 | 49.3 | 53.4 | 52.3 | 46.4 | 36.5 | 26.2 | 19.8 | 35.5 |
| Highest Mean Min. Temperature (F) | 24.4 | 28.4 | 30.6 | 37.5 | 47.1 | 53.6 | 55.7 | 55.6 | 51.4 | 40.1 | 32.1 | 25.7 | 55.7 |
| Year Highest Occurred | 2000 | 2000 | 1989 | 1986 | 1996 | 1994 | 1999 | 1995 | 1997 | 1998 | 1998 | 1980 | 1999 |
| Lowest Mean Min. Temperature (F) | 12.2 | 18.0 | 22.9 | 23.7 | 36.5 | 45.1 | 51.1 | 48.2 | 42.3 | 30.5 | 19.4 | 14.0 | 12.2 |
| Year Lowest Occurred | 1979 | 1974 | 1977 | 1973 | 1975 | 1973 | 1987 | 1974 | 1974 | 1976 | 2000 | 1974 | 1979 |
| Mean Precipitation (in.) | 0.38 | 0.36 | 0.77 | 1.00 | 1.84 | 2.17 | 3.29 | 3.62 | 2.12 | 1.24 | 0.79 | 0.52 | 18.10 |
| Highest Precipitation (in.) | 1.28 | 1.82 | 3.58 | 4.88 | 3.94 | 4.80 | 7.97 | 7.95 | 5.59 | 4.47 | 3.86 | 2.12 | 7.97 |
| Year Highest Occurred | 1990 | 1986 | 1985 | 1985 | 1987 | 1984 | 1972 | 1981 | 1997 | 1998 | 1978 | 1984 | 1972 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.02 | 0.00 | 0.00 | 0.02 | 0.57 | 0.86 | 0.41 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1998 | 2000 | 1972 | 1972 | 1998 | 1998 | 1980 | 1980 | 1992 | 1995 | 1989 | 1981 | 1998 |
| Heating Degree Days (F) | 1008. | 817. | 737. | 521. | 296. | 74. | 15. | 42. | 159. | 425. | 748. | 986. | 5828. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 1. | 15. | 72. | 114. | 90. | 29. | 1. | 0. | 0. | 322. |