| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 33.0 | 39.3 | 48.9 | 58.9 | 67.6 | 74.9 | 84.3 | 84.7 | 73.9 | 59.3 | 41.0 | 32.4 | 58.2 |
| Highest Mean Max. Temperature (F) | 39.5 | 46.3 | 55.0 | 67.1 | 74.5 | 83.6 | 95.7 | 93.6 | 83.4 | 67.8 | 48.7 | 37.9 | 95.7 |
| Year Highest Occurred | 1994 | 1987 | 1986 | 1987 | 1987 | 1986 | 1985 | 1971 | 1987 | 1987 | 1999 | 1999 | 1985 |
| Lowest Mean Max. Temperature (F) | 21.5 | 29.1 | 42.5 | 53.2 | 61.4 | 65.5 | 72.8 | 76.8 | 64.6 | 50.7 | 32.2 | 24.9 | 21.5 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1972 | 1991 | 1991 | 1993 | 1978 | 1977 | 1995 | 1985 | 1990 | 1979 |
| Mean Temperature (F) | 27.0 | 32.0 | 39.3 | 47.2 | 55.0 | 61.6 | 68.9 | 69.0 | 59.7 | 47.5 | 34.9 | 27.0 | 47.4 |
| Highest Mean Temperature (F) | 33.4 | 39.4 | 46.1 | 54.9 | 60.5 | 69.0 | 77.7 | 74.3 | 66.0 | 54.0 | 41.7 | 32.7 | 77.7 |
| Year Highest Occurred | 1994 | 1987 | 1986 | 1987 | 1987 | 1986 | 1985 | 1971 | 1987 | 1988 | 1987 | 1979 | 1985 |
| Lowest Mean Temperature (F) | 13.9 | 20.6 | 33.5 | 41.2 | 48.3 | 56.3 | 61.6 | 61.5 | 52.9 | 41.9 | 27.5 | 19.9 | 13.9 |
| Year Lowest Occurred | 1979 | 1989 | 1990 | 1990 | 1991 | 1991 | 1993 | 1995 | 1972 | 1995 | 1985 | 1990 | 1979 |
| Mean Min. Temperature (F) | 20.9 | 24.6 | 29.7 | 35.4 | 42.3 | 48.2 | 53.4 | 53.2 | 45.4 | 35.7 | 28.7 | 21.6 | 36.6 |
| Highest Mean Min. Temperature (F) | 27.7 | 32.4 | 37.4 | 42.6 | 46.9 | 55.1 | 59.6 | 59.9 | 51.5 | 43.1 | 35.1 | 28.2 | 59.9 |
| Year Highest Occurred | 1992 | 1987 | 1984 | 1987 | 1993 | 1992 | 1985 | 1981 | 1988 | 1988 | 1987 | 1979 | 1981 |
| Lowest Mean Min. Temperature (F) | 6.3 | 12.0 | 22.3 | 28.7 | 35.2 | 41.8 | 48.0 | 45.9 | 38.0 | 30.9 | 22.7 | 14.9 | 6.3 |
| Year Lowest Occurred | 1979 | 1989 | 1990 | 1990 | 1991 | 1990 | 1999 | 1995 | 1972 | 1972 | 1985 | 1990 | 1979 |
| Mean Precipitation (in.) | 1.90 | 1.84 | 1.81 | 1.50 | 1.86 | 1.49 | 0.95 | 0.72 | 0.84 | 1.23 | 2.67 | 2.91 | 19.72 |
| Highest Precipitation (in.) | 3.23 | 4.81 | 4.43 | 3.53 | 4.36 | 3.53 | 3.13 | 3.55 | 2.77 | 4.25 | 6.19 | 9.25 | 9.25 |
| Year Highest Occurred | 1980 | 1999 | 1983 | 1978 | 1998 | 1984 | 1993 | 1976 | 1986 | 1996 | 1983 | 1996 | 1996 |
| Lowest Precipitation (in.) | 0.16 | 0.13 | 0.24 | 0.00 | 0.47 | 0.10 | 0.00 | 0.00 | 0.00 | 0.00 | 0.43 | 0.57 | 0.00 |
| Year Lowest Occurred | 1985 | 1993 | 1985 | 1985 | 1992 | 1986 | 1988 | 2000 | 1999 | 1988 | 1976 | 1976 | 1985 |
| Heating Degree Days (F) | 1180. | 926. | 796. | 536. | 325. | 159. | 64. | 52. | 219. | 545. | 903. | 1178. | 6883. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 13. | 56. | 183. | 174. | 58. | 1. | 0. | 0. | 485. |