| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 40.0 | 46.1 | 52.9 | 60.8 | 69.4 | 79.4 | 89.4 | 88.0 | 78.8 | 66.1 | 49.5 | 40.7 | 63.4 |
| Highest Mean Max. Temperature (F) | 47.8 | 57.3 | 60.2 | 71.8 | 80.8 | 86.3 | 94.4 | 93.0 | 84.9 | 75.9 | 59.3 | 48.4 | 94.4 |
| Year Highest Occurred | 1986 | 1995 | 1986 | 1987 | 1992 | 1986 | 1988 | 1986 | 1979 | 1978 | 1995 | 1976 | 1988 |
| Lowest Mean Max. Temperature (F) | 31.3 | 33.9 | 46.8 | 50.1 | 61.3 | 71.9 | 79.9 | 80.4 | 69.5 | 56.6 | 41.4 | 33.3 | 31.3 |
| Year Lowest Occurred | 1993 | 1993 | 1975 | 1975 | 1998 | 1971 | 1993 | 1976 | 1985 | 1984 | 1994 | 1990 | 1993 |
| Mean Temperature (F) | 31.1 | 36.0 | 41.1 | 47.1 | 54.5 | 63.3 | 71.4 | 70.0 | 61.1 | 50.7 | 38.8 | 31.3 | 49.7 |
| Highest Mean Temperature (F) | 37.5 | 43.2 | 46.4 | 54.0 | 61.7 | 68.6 | 75.1 | 74.7 | 67.1 | 56.2 | 46.3 | 38.1 | 75.1 |
| Year Highest Occurred | 1998 | 1995 | 1972 | 1987 | 1992 | 1977 | 1985 | 1971 | 1979 | 1988 | 1995 | 1981 | 1985 |
| Lowest Mean Temperature (F) | 22.4 | 24.7 | 35.7 | 39.1 | 49.5 | 58.0 | 62.7 | 64.5 | 53.5 | 46.4 | 31.4 | 21.8 | 21.8 |
| Year Lowest Occurred | 1993 | 1989 | 1976 | 1975 | 1991 | 1993 | 1993 | 1976 | 1985 | 1984 | 1985 | 1990 | 1990 |
| Mean Min. Temperature (F) | 22.2 | 25.8 | 29.2 | 33.3 | 39.6 | 47.2 | 53.4 | 52.0 | 43.3 | 35.2 | 28.1 | 21.8 | 35.9 |
| Highest Mean Min. Temperature (F) | 30.6 | 32.4 | 35.7 | 38.9 | 44.2 | 52.6 | 57.0 | 59.3 | 49.2 | 44.6 | 34.9 | 31.1 | 59.3 |
| Year Highest Occurred | 1998 | 1980 | 1972 | 1990 | 1972 | 1977 | 1985 | 1971 | 1979 | 1979 | 1983 | 1981 | 1971 |
| Lowest Mean Min. Temperature (F) | 12.4 | 13.5 | 23.2 | 28.1 | 34.9 | 42.7 | 45.5 | 45.8 | 37.5 | 30.3 | 18.4 | 10.3 | 10.3 |
| Year Lowest Occurred | 1977 | 1989 | 1985 | 1975 | 1982 | 1991 | 1993 | 1987 | 1985 | 1985 | 1993 | 1990 | 1990 |
| Mean Precipitation (in.) | 0.94 | 0.84 | 1.15 | 1.02 | 1.13 | 0.86 | 0.26 | 0.49 | 0.55 | 0.64 | 1.06 | 0.88 | 9.82 |
| Highest Precipitation (in.) | 2.05 | 2.83 | 2.41 | 3.06 | 3.62 | 2.61 | 1.17 | 2.43 | 1.75 | 1.75 | 4.54 | 3.47 | 4.54 |
| Year Highest Occurred | 1996 | 1986 | 1983 | 1978 | 1998 | 1987 | 1982 | 1993 | 1971 | 1984 | 1973 | 1983 | 1973 |
| Lowest Precipitation (in.) | 0.01 | 0.03 | 0.15 | 0.14 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.10 | 0.00 | 0.00 |
| Year Lowest Occurred | 1992 | 1995 | 1999 | 1972 | 1972 | 1990 | 2000 | 2000 | 1999 | 1999 | 1976 | 1999 | 1972 |
| Heating Degree Days (F) | 1052. | 814. | 743. | 538. | 334. | 129. | 19. | 28. | 164. | 447. | 786. | 1046. | 6100. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 8. | 77. | 217. | 183. | 44. | 1. | 0. | 0. | 530. |