| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 41.1 | 47.4 | 57.0 | 65.8 | 75.0 | 85.7 | 92.7 | 90.8 | 81.2 | 68.4 | 52.6 | 42.1 | 66.7 |
| Highest Mean Max. Temperature (F) | 52.2 | 58.9 | 68.9 | 75.7 | 80.7 | 91.6 | 97.0 | 94.0 | 86.9 | 76.9 | 64.0 | 49.8 | 97.0 |
| Year Highest Occurred | 1998 | 1995 | 1989 | 1989 | 1984 | 1994 | 1989 | 1994 | 1979 | 1988 | 1995 | 1977 | 1989 |
| Lowest Mean Max. Temperature (F) | 29.1 | 36.6 | 47.2 | 56.1 | 68.1 | 78.5 | 89.6 | 86.9 | 75.5 | 61.4 | 42.9 | 33.1 | 29.1 |
| Year Lowest Occurred | 1979 | 1993 | 1973 | 1975 | 1977 | 1995 | 1992 | 1976 | 1986 | 1984 | 2000 | 1972 | 1979 |
| Mean Temperature (F) | 28.0 | 33.8 | 42.5 | 50.0 | 58.7 | 68.4 | 75.4 | 73.4 | 63.4 | 51.3 | 38.2 | 28.5 | 51.0 |
| Highest Mean Temperature (F) | 38.1 | 42.1 | 49.6 | 58.4 | 63.0 | 72.9 | 78.1 | 76.7 | 68.1 | 57.5 | 44.3 | 37.2 | 78.1 |
| Year Highest Occurred | 1998 | 1995 | 1989 | 1989 | 1992 | 1986 | 1989 | 2000 | 1990 | 1988 | 1995 | 1996 | 1989 |
| Lowest Mean Temperature (F) | 18.1 | 24.8 | 35.0 | 42.8 | 54.3 | 62.7 | 72.3 | 68.9 | 58.8 | 46.0 | 30.7 | 21.1 | 18.1 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1983 | 1995 | 1993 | 1976 | 1985 | 1984 | 2000 | 1972 | 1979 |
| Mean Min. Temperature (F) | 14.9 | 20.1 | 27.9 | 34.1 | 42.3 | 51.1 | 58.0 | 55.9 | 45.5 | 34.1 | 23.7 | 14.9 | 35.2 |
| Highest Mean Min. Temperature (F) | 23.9 | 27.5 | 36.1 | 41.1 | 46.3 | 56.1 | 60.9 | 60.9 | 50.8 | 39.5 | 28.6 | 25.3 | 60.9 |
| Year Highest Occurred | 1998 | 2000 | 1990 | 1989 | 1990 | 1977 | 1999 | 1997 | 1990 | 1972 | 1998 | 1996 | 1999 |
| Lowest Mean Min. Temperature (F) | 4.1 | 10.9 | 19.9 | 29.5 | 37.4 | 46.9 | 54.5 | 51.0 | 40.8 | 30.6 | 18.3 | 5.0 | 4.1 |
| Year Lowest Occurred | 1987 | 1989 | 1976 | 1975 | 1983 | 1995 | 1995 | 1976 | 1971 | 1995 | 1979 | 1990 | 1987 |
| Mean Precipitation (in.) | 0.29 | 0.37 | 0.68 | 0.60 | 0.86 | 0.60 | 0.58 | 0.59 | 0.76 | 0.71 | 0.40 | 0.19 | 6.63 |
| Highest Precipitation (in.) | 1.77 | 2.38 | 2.03 | 2.18 | 3.35 | 2.28 | 3.26 | 2.40 | 3.57 | 2.24 | 1.40 | 0.83 | 3.57 |
| Year Highest Occurred | 1987 | 1998 | 1975 | 1994 | 1991 | 1995 | 1985 | 1984 | 1982 | 1981 | 1978 | 1990 | 1982 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1989 | 1972 | 1997 | 1992 | 1974 | 1996 | 2000 | 1995 | 1979 | 1989 | 1999 | 2000 | 1989 |
| Heating Degree Days (F) | 1147. | 875. | 700. | 458. | 222. | 53. | 1. | 4. | 108. | 429. | 805. | 1131. | 5933. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 7. | 25. | 154. | 322. | 263. | 58. | 2. | 0. | 0. | 831. |