| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 43.3 | 50.6 | 59.5 | 68.0 | 77.3 | 87.9 | 92.0 | 89.3 | 82.1 | 70.0 | 54.6 | 44.7 | 68.3 |
| Highest Mean Max. Temperature (F) | 53.5 | 58.3 | 68.7 | 76.3 | 83.9 | 92.8 | 96.8 | 92.1 | 87.8 | 76.3 | 64.6 | 52.5 | 96.8 |
| Year Highest Occurred | 1986 | 1995 | 1972 | 1989 | 1984 | 1981 | 1980 | 1985 | 1979 | 1988 | 1999 | 1980 | 1980 |
| Lowest Mean Max. Temperature (F) | 36.7 | 44.3 | 52.1 | 60.5 | 71.8 | 82.9 | 87.2 | 84.9 | 76.4 | 60.3 | 47.7 | 35.4 | 35.4 |
| Year Lowest Occurred | 1977 | 1974 | 1973 | 1983 | 1995 | 1995 | 1992 | 1993 | 1986 | 1984 | 2000 | 1990 | 1990 |
| Mean Temperature (F) | 30.5 | 36.6 | 43.6 | 50.8 | 59.8 | 69.7 | 75.9 | 74.3 | 66.3 | 54.5 | 41.0 | 32.0 | 52.9 |
| Highest Mean Temperature (F) | 37.7 | 42.6 | 48.7 | 55.7 | 64.2 | 73.7 | 79.8 | 77.3 | 69.5 | 58.3 | 45.5 | 36.9 | 79.8 |
| Year Highest Occurred | 1986 | 1995 | 1989 | 1989 | 1984 | 1981 | 1971 | 1982 | 1981 | 1974 | 1999 | 1977 | 1971 |
| Lowest Mean Temperature (F) | 23.6 | 30.0 | 39.3 | 45.9 | 56.3 | 65.2 | 72.1 | 70.1 | 62.3 | 49.3 | 34.5 | 22.6 | 22.6 |
| Year Lowest Occurred | 1977 | 1979 | 1980 | 1983 | 1995 | 1995 | 1995 | 1989 | 1996 | 1984 | 1979 | 1990 | 1990 |
| Mean Min. Temperature (F) | 17.6 | 22.6 | 27.7 | 33.6 | 42.3 | 51.5 | 59.8 | 59.3 | 50.5 | 39.0 | 27.4 | 19.2 | 37.5 |
| Highest Mean Min. Temperature (F) | 26.2 | 26.9 | 32.2 | 38.2 | 48.3 | 56.3 | 65.6 | 64.4 | 55.6 | 49.0 | 33.9 | 25.5 | 65.6 |
| Year Highest Occurred | 1993 | 1995 | 1978 | 1992 | 1992 | 1971 | 1971 | 1971 | 1990 | 1972 | 1978 | 1984 | 1971 |
| Lowest Mean Min. Temperature (F) | 8.7 | 14.2 | 22.9 | 30.6 | 39.4 | 45.9 | 54.1 | 51.6 | 46.5 | 32.9 | 21.3 | 9.8 | 8.7 |
| Year Lowest Occurred | 1982 | 1979 | 1988 | 1998 | 1975 | 1998 | 1987 | 1989 | 1987 | 1995 | 1979 | 1990 | 1982 |
| Mean Precipitation (in.) | 0.98 | 0.82 | 1.00 | 0.73 | 0.75 | 0.32 | 1.01 | 1.30 | 1.00 | 1.21 | 0.94 | 0.72 | 10.78 |
| Highest Precipitation (in.) | 3.06 | 2.91 | 2.69 | 2.48 | 2.51 | 1.56 | 3.02 | 3.71 | 2.96 | 5.19 | 3.37 | 2.06 | 5.19 |
| Year Highest Occurred | 1993 | 1987 | 1973 | 1985 | 1992 | 1988 | 1986 | 1999 | 1986 | 1972 | 1986 | 1983 | 1972 |
| Lowest Precipitation (in.) | 0.03 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.07 | 0.00 | 0.00 | 0.00 | 0.01 | 0.00 |
| Year Lowest Occurred | 1976 | 1972 | 1997 | 1989 | 1998 | 1998 | 1993 | 1975 | 1979 | 1999 | 1989 | 1989 | 1972 |
| Heating Degree Days (F) | 1071. | 795. | 663. | 426. | 180. | 23. | 0. | 1. | 54. | 330. | 719. | 1025. | 5287. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 20. | 164. | 338. | 289. | 92. | 4. | 0. | 0. | 907. |