| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 48.2 | 53.8 | 60.8 | 68.7 | 77.4 | 86.7 | 88.0 | 85.3 | 80.1 | 70.6 | 57.2 | 49.2 | 68.8 |
| Highest Mean Max. Temperature (F) | 54.7 | 60.0 | 68.5 | 76.5 | 88.0 | 93.6 | 93.2 | 90.4 | 85.7 | 76.3 | 66.3 | 58.0 | 93.6 |
| Year Highest Occurred | 1986 | 1995 | 1989 | 1989 | 1996 | 1990 | 1980 | 1995 | 2000 | 1988 | 1999 | 1980 | 1990 |
| Lowest Mean Max. Temperature (F) | 40.8 | 47.7 | 53.3 | 60.6 | 73.1 | 81.0 | 83.0 | 81.1 | 74.4 | 62.7 | 48.9 | 42.0 | 40.8 |
| Year Lowest Occurred | 1979 | 1998 | 1973 | 1973 | 1975 | 1984 | 1975 | 1974 | 1974 | 1984 | 2000 | 1997 | 1979 |
| Mean Temperature (F) | 34.9 | 39.4 | 45.1 | 51.8 | 60.6 | 69.5 | 72.0 | 70.1 | 64.5 | 54.8 | 42.8 | 35.6 | 53.4 |
| Highest Mean Temperature (F) | 40.4 | 44.9 | 51.2 | 58.4 | 68.2 | 75.4 | 75.8 | 73.3 | 69.1 | 58.8 | 49.4 | 42.3 | 75.8 |
| Year Highest Occurred | 2000 | 1995 | 1972 | 1989 | 1996 | 1990 | 1980 | 1995 | 1997 | 1988 | 1999 | 1980 | 1980 |
| Lowest Mean Temperature (F) | 30.2 | 35.6 | 40.3 | 44.7 | 56.0 | 65.2 | 69.0 | 67.2 | 61.0 | 49.8 | 36.6 | 29.9 | 29.9 |
| Year Lowest Occurred | 1992 | 1973 | 1973 | 1973 | 1983 | 1983 | 1975 | 1974 | 1974 | 1984 | 2000 | 1997 | 1997 |
| Mean Min. Temperature (F) | 21.6 | 25.0 | 29.3 | 34.9 | 43.7 | 52.2 | 55.9 | 54.8 | 48.8 | 38.9 | 28.4 | 21.9 | 38.0 |
| Highest Mean Min. Temperature (F) | 26.5 | 29.8 | 34.1 | 40.3 | 48.8 | 57.1 | 58.4 | 58.3 | 53.0 | 41.8 | 32.7 | 27.6 | 58.4 |
| Year Highest Occurred | 1980 | 1995 | 1972 | 1989 | 2000 | 1990 | 1980 | 1977 | 1997 | 1998 | 1978 | 1977 | 1980 |
| Lowest Mean Min. Temperature (F) | 17.6 | 20.6 | 24.0 | 28.7 | 37.3 | 46.2 | 53.0 | 53.1 | 45.6 | 34.5 | 22.9 | 17.8 | 17.6 |
| Year Lowest Occurred | 1992 | 1974 | 1988 | 1973 | 1983 | 1983 | 1983 | 1976 | 1993 | 1976 | 1976 | 1997 | 1992 |
| Mean Precipitation (in.) | 0.77 | 0.75 | 0.76 | 0.70 | 1.00 | 1.16 | 2.77 | 3.50 | 2.22 | 1.61 | 1.00 | 0.99 | 17.23 |
| Highest Precipitation (in.) | 2.03 | 1.70 | 2.06 | 2.73 | 3.25 | 3.09 | 6.83 | 9.02 | 6.19 | 5.27 | 3.45 | 3.24 | 9.02 |
| Year Highest Occurred | 1978 | 1986 | 1973 | 1988 | 1992 | 2000 | 1991 | 1993 | 1997 | 1972 | 1986 | 1978 | 1993 |
| Lowest Precipitation (in.) | 0.00 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.69 | 1.02 | 0.24 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1994 | 1999 | 1996 | 1996 | 2000 | 1975 | 1995 | 1998 | 1973 | 1975 | 1999 | 1981 | 1994 |
| Heating Degree Days (F) | 934. | 718. | 620. | 401. | 182. | 31. | 2. | 6. | 78. | 324. | 666. | 913. | 4875. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 6. | 44. | 165. | 218. | 163. | 63. | 5. | 0. | 0. | 664. |