| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 38.8 | 47.6 | 56.4 | 65.0 | 74.1 | 85.4 | 92.8 | 90.7 | 81.7 | 68.8 | 51.5 | 41.0 | 66.2 |
| Highest Mean Max. Temperature (F) | 47.1 | 56.8 | 65.6 | 73.0 | 80.6 | 91.9 | 96.1 | 94.0 | 89.3 | 76.5 | 60.8 | 47.1 | 96.1 |
| Year Highest Occurred | 1986 | 1995 | 1972 | 1989 | 1984 | 1986 | 1981 | 1996 | 1979 | 1988 | 1999 | 1977 | 1981 |
| Lowest Mean Max. Temperature (F) | 28.0 | 38.8 | 47.2 | 55.4 | 65.7 | 77.7 | 89.2 | 85.3 | 74.1 | 61.0 | 38.5 | 33.9 | 28.0 |
| Year Lowest Occurred | 1988 | 1989 | 1973 | 1975 | 1977 | 1998 | 1992 | 1983 | 1985 | 1984 | 1985 | 1984 | 1988 |
| Mean Temperature (F) | 27.0 | 34.4 | 42.3 | 49.4 | 58.3 | 68.2 | 74.8 | 72.9 | 64.1 | 51.9 | 37.8 | 28.4 | 50.8 |
| Highest Mean Temperature (F) | 35.9 | 42.3 | 47.9 | 56.0 | 63.9 | 73.0 | 78.1 | 76.0 | 68.2 | 58.0 | 44.4 | 34.5 | 78.1 |
| Year Highest Occurred | 1986 | 1995 | 1986 | 1989 | 1992 | 1986 | 1996 | 1998 | 1979 | 1988 | 1999 | 1977 | 1996 |
| Lowest Mean Temperature (F) | 17.7 | 23.3 | 36.1 | 40.5 | 52.9 | 63.1 | 72.3 | 68.3 | 59.5 | 45.9 | 29.1 | 22.8 | 17.7 |
| Year Lowest Occurred | 1979 | 1985 | 1973 | 1975 | 1977 | 1998 | 1986 | 1976 | 1985 | 1984 | 1985 | 1984 | 1979 |
| Mean Min. Temperature (F) | 15.1 | 21.1 | 28.2 | 33.7 | 42.5 | 51.0 | 56.7 | 55.0 | 46.5 | 34.9 | 24.1 | 15.7 | 35.4 |
| Highest Mean Min. Temperature (F) | 26.6 | 29.4 | 34.2 | 39.0 | 47.8 | 54.8 | 60.2 | 59.1 | 51.9 | 40.0 | 30.9 | 23.1 | 60.2 |
| Year Highest Occurred | 1995 | 1986 | 1993 | 1989 | 1992 | 1981 | 1990 | 1998 | 1998 | 1992 | 1987 | 1996 | 1990 |
| Lowest Mean Min. Temperature (F) | 5.6 | 3.6 | 20.4 | 25.7 | 37.1 | 45.6 | 52.5 | 50.1 | 41.0 | 29.8 | 19.8 | 7.8 | 3.6 |
| Year Lowest Occurred | 1989 | 1985 | 1977 | 1975 | 1975 | 1979 | 1979 | 1976 | 1978 | 1976 | 1985 | 1976 | 1985 |
| Mean Precipitation (in.) | 0.77 | 0.62 | 0.98 | 0.86 | 1.05 | 0.45 | 0.52 | 0.69 | 0.75 | 1.02 | 0.69 | 0.38 | 8.78 |
| Highest Precipitation (in.) | 1.66 | 1.97 | 2.43 | 2.93 | 3.43 | 1.52 | 2.94 | 3.92 | 3.95 | 4.23 | 2.53 | 1.54 | 4.23 |
| Year Highest Occurred | 1983 | 2000 | 1992 | 1978 | 1980 | 1998 | 1984 | 1983 | 1982 | 1981 | 1987 | 1984 | 1981 |
| Lowest Precipitation (in.) | 0.12 | 0.00 | 0.06 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1996 | 1988 | 1989 | 1996 | 1984 | 2000 | 2000 | 1985 | 1979 | 1999 | 1995 | 1999 | 1988 |
| Heating Degree Days (F) | 1179. | 859. | 703. | 475. | 241. | 53. | 1. | 4. | 88. | 412. | 817. | 1136. | 5968. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 5. | 33. | 149. | 303. | 247. | 60. | 3. | 0. | 0. | 800. |