| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 37.2 | 43.2 | 51.7 | 60.0 | 70.4 | 82.1 | 88.3 | 85.9 | 77.0 | 63.7 | 47.8 | 38.1 | 62.1 |
| Highest Mean Max. Temperature (F) | 44.1 | 51.4 | 60.7 | 67.5 | 76.0 | 87.2 | 91.5 | 90.0 | 84.6 | 70.7 | 56.5 | 46.6 | 91.5 |
| Year Highest Occurred | 1981 | 1995 | 1972 | 1992 | 1974 | 1974 | 1994 | 1994 | 1979 | 1988 | 1999 | 1980 | 1994 |
| Lowest Mean Max. Temperature (F) | 29.7 | 37.8 | 45.9 | 52.8 | 63.7 | 76.6 | 83.3 | 81.2 | 69.7 | 55.7 | 40.5 | 30.9 | 29.7 |
| Year Lowest Occurred | 1979 | 1974 | 1991 | 1975 | 1995 | 1998 | 1992 | 1999 | 1986 | 1984 | 2000 | 1978 | 1979 |
| Mean Temperature (F) | 28.6 | 34.1 | 41.3 | 48.4 | 58.4 | 69.2 | 75.2 | 73.3 | 65.2 | 53.1 | 38.6 | 29.8 | 51.3 |
| Highest Mean Temperature (F) | 35.6 | 43.0 | 47.7 | 56.1 | 64.1 | 75.7 | 79.3 | 78.1 | 69.9 | 58.5 | 47.2 | 37.9 | 79.3 |
| Year Highest Occurred | 1999 | 1995 | 1999 | 1992 | 2000 | 1994 | 1994 | 1994 | 1979 | 1988 | 1999 | 1980 | 1994 |
| Lowest Mean Temperature (F) | 20.2 | 27.0 | 35.8 | 41.8 | 52.7 | 64.8 | 71.0 | 69.4 | 59.4 | 45.5 | 32.4 | 22.7 | 20.2 |
| Year Lowest Occurred | 1973 | 1974 | 1987 | 1975 | 1995 | 1995 | 1987 | 1987 | 1986 | 1984 | 2000 | 1990 | 1973 |
| Mean Min. Temperature (F) | 20.0 | 24.9 | 30.9 | 36.7 | 46.4 | 56.3 | 62.1 | 60.7 | 53.3 | 42.4 | 29.4 | 21.5 | 40.4 |
| Highest Mean Min. Temperature (F) | 28.4 | 34.7 | 38.2 | 44.8 | 53.5 | 64.6 | 67.5 | 66.3 | 57.8 | 48.0 | 37.8 | 29.2 | 67.5 |
| Year Highest Occurred | 1999 | 1995 | 1999 | 2000 | 2000 | 1994 | 2000 | 2000 | 1998 | 1992 | 1999 | 1980 | 2000 |
| Lowest Mean Min. Temperature (F) | 9.8 | 16.2 | 23.6 | 30.7 | 41.6 | 51.4 | 57.7 | 55.8 | 48.3 | 35.2 | 24.0 | 14.1 | 9.8 |
| Year Lowest Occurred | 1973 | 1974 | 1976 | 1975 | 1975 | 1982 | 1987 | 1975 | 1971 | 1984 | 1979 | 1990 | 1973 |
| Mean Precipitation (in.) | 0.66 | 0.47 | 0.81 | 0.64 | 0.61 | 0.44 | 1.16 | 0.96 | 0.91 | 1.18 | 0.78 | 0.54 | 9.16 |
| Highest Precipitation (in.) | 1.76 | 1.59 | 2.04 | 2.29 | 1.48 | 1.87 | 2.44 | 1.89 | 2.44 | 3.31 | 2.01 | 1.10 | 3.31 |
| Year Highest Occurred | 1997 | 1993 | 1985 | 1999 | 1995 | 1984 | 1985 | 1999 | 1997 | 2000 | 1983 | 1991 | 2000 |
| Lowest Precipitation (in.) | 0.10 | 0.03 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.03 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1972 | 1991 | 1994 | 1982 | 1984 | 1989 | 1988 | 1985 | 1979 | 1999 | 1989 | 1989 | 1994 |
| Heating Degree Days (F) | 1128. | 867. | 736. | 502. | 232. | 42. | 1. | 6. | 77. | 381. | 792. | 1091. | 5855. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 2. | 27. | 167. | 317. | 263. | 83. | 10. | 0. | 0. | 869. |