| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 40.9 | 45.4 | 53.3 | 59.4 | 65.7 | 72.5 | 79.6 | 80.3 | 73.5 | 62.0 | 47.2 | 40.2 | 60.0 |
| Highest Mean Max. Temperature (F) | 49.9 | 53.1 | 60.7 | 65.5 | 73.4 | 79.4 | 85.3 | 85.8 | 80.3 | 70.4 | 53.8 | 45.9 | 85.8 |
| Year Highest Occurred | 1994 | 1995 | 1992 | 1990 | 1992 | 1992 | 1996 | 1986 | 1998 | 1988 | 1995 | 1980 | 1986 |
| Lowest Mean Max. Temperature (F) | 26.2 | 36.9 | 47.9 | 53.0 | 59.8 | 66.5 | 70.8 | 74.3 | 65.1 | 55.5 | 37.1 | 27.7 | 26.2 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1977 | 1971 | 1993 | 1976 | 1985 | 1984 | 1985 | 1985 | 1979 |
| Mean Temperature (F) | 33.6 | 36.8 | 42.3 | 47.2 | 52.8 | 58.7 | 64.1 | 64.3 | 58.2 | 49.1 | 39.4 | 33.3 | 48.3 |
| Highest Mean Temperature (F) | 40.0 | 43.3 | 47.1 | 51.5 | 57.6 | 64.0 | 68.3 | 68.3 | 62.4 | 55.8 | 45.3 | 38.0 | 68.3 |
| Year Highest Occurred | 1994 | 1991 | 1992 | 1990 | 1992 | 1992 | 1998 | 1981 | 1998 | 1988 | 1995 | 1980 | 1998 |
| Lowest Mean Temperature (F) | 18.6 | 28.2 | 37.9 | 41.6 | 48.7 | 54.7 | 59.0 | 60.6 | 52.3 | 45.8 | 30.1 | 22.2 | 18.6 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1977 | 1971 | 1993 | 1975 | 1985 | 1984 | 1985 | 1985 | 1979 |
| Mean Min. Temperature (F) | 26.2 | 28.2 | 31.3 | 35.0 | 39.9 | 44.9 | 48.5 | 48.3 | 42.8 | 36.1 | 31.5 | 26.4 | 36.6 |
| Highest Mean Min. Temperature (F) | 32.0 | 34.4 | 36.3 | 38.5 | 43.3 | 48.8 | 52.0 | 51.9 | 46.5 | 41.1 | 36.7 | 31.6 | 52.0 |
| Year Highest Occurred | 1992 | 1992 | 1986 | 1992 | 1993 | 1986 | 1998 | 1982 | 1982 | 1988 | 1995 | 1999 | 1998 |
| Lowest Mean Min. Temperature (F) | 10.9 | 19.4 | 27.8 | 30.2 | 37.3 | 41.6 | 45.5 | 44.7 | 39.5 | 32.4 | 22.3 | 16.7 | 10.9 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1999 | 1976 | 1984 | 1988 | 1985 | 1974 | 1993 | 1985 | 1979 |
| Mean Precipitation (in.) | 5.29 | 4.53 | 2.96 | 1.99 | 1.17 | 0.86 | 0.33 | 0.47 | 1.17 | 2.40 | 5.52 | 5.61 | 32.30 |
| Highest Precipitation (in.) | 9.63 | 10.59 | 5.73 | 4.09 | 3.55 | 2.04 | 1.50 | 2.16 | 3.26 | 7.57 | 12.69 | 10.97 | 12.69 |
| Year Highest Occurred | 1990 | 1996 | 1983 | 1996 | 1993 | 1985 | 1987 | 1989 | 1982 | 1994 | 1995 | 1998 | 1995 |
| Lowest Precipitation (in.) | 0.13 | 0.72 | 0.57 | 0.27 | 0.10 | 0.17 | 0.00 | 0.00 | 0.00 | 0.03 | 1.10 | 1.68 | 0.00 |
| Year Lowest Occurred | 1985 | 1993 | 1997 | 1999 | 1992 | 1986 | 2000 | 2000 | 1993 | 1988 | 1976 | 1976 | 2000 |
| Heating Degree Days (F) | 976. | 789. | 703. | 533. | 380. | 205. | 88. | 91. | 226. | 496. | 769. | 983. | 6239. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 1. | 14. | 58. | 69. | 20. | 0. | 0. | 0. | 162. |