| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 53.4 | 58.8 | 66.3 | 74.1 | 82.9 | 91.0 | 93.0 | 91.1 | 84.5 | 75.6 | 63.2 | 54.7 | 74.1 |
| Highest Mean Max. Temperature (F) | 60.9 | 68.5 | 73.7 | 80.9 | 92.0 | 98.7 | 98.7 | 96.9 | 92.0 | 82.5 | 73.1 | 61.0 | 98.7 |
| Year Highest Occurred | 1986 | 2000 | 1972 | 1978 | 1996 | 1990 | 1998 | 1983 | 2000 | 1979 | 1999 | 1977 | 1990 |
| Lowest Mean Max. Temperature (F) | 43.3 | 48.2 | 60.0 | 66.2 | 76.9 | 85.8 | 87.6 | 84.3 | 76.7 | 69.4 | 53.8 | 44.7 | 43.3 |
| Year Lowest Occurred | 1979 | 1978 | 1981 | 1997 | 1992 | 1986 | 1990 | 1971 | 1974 | 1984 | 1972 | 1983 | 1979 |
| Mean Temperature (F) | 37.3 | 41.8 | 48.6 | 56.9 | 66.5 | 75.3 | 77.8 | 76.1 | 69.2 | 58.9 | 46.9 | 38.4 | 57.8 |
| Highest Mean Temperature (F) | 42.9 | 48.4 | 53.7 | 61.9 | 73.9 | 80.8 | 81.8 | 79.1 | 75.1 | 62.4 | 52.3 | 43.0 | 81.8 |
| Year Highest Occurred | 1999 | 1976 | 1974 | 1978 | 1996 | 1980 | 1980 | 1985 | 1998 | 1998 | 1999 | 1994 | 1980 |
| Lowest Mean Temperature (F) | 29.7 | 34.0 | 43.8 | 51.0 | 63.2 | 71.8 | 74.1 | 71.6 | 62.7 | 52.8 | 39.8 | 30.7 | 29.7 |
| Year Lowest Occurred | 1979 | 1978 | 1980 | 1983 | 1976 | 1983 | 1990 | 1971 | 1974 | 1976 | 1972 | 1983 | 1979 |
| Mean Min. Temperature (F) | 21.2 | 24.8 | 30.9 | 39.6 | 50.1 | 59.5 | 62.5 | 61.0 | 53.9 | 42.1 | 30.5 | 22.1 | 41.5 |
| Highest Mean Min. Temperature (F) | 26.2 | 30.9 | 35.1 | 44.8 | 55.8 | 63.3 | 66.1 | 63.3 | 58.2 | 47.5 | 35.6 | 28.6 | 66.1 |
| Year Highest Occurred | 1999 | 1992 | 1985 | 1981 | 1996 | 1980 | 1993 | 1996 | 1998 | 1998 | 1983 | 1984 | 1993 |
| Lowest Mean Min. Temperature (F) | 15.8 | 19.9 | 25.0 | 33.9 | 45.0 | 55.7 | 59.6 | 58.5 | 48.6 | 35.7 | 25.1 | 16.5 | 15.8 |
| Year Lowest Occurred | 1977 | 1978 | 1980 | 1983 | 1983 | 1983 | 1985 | 1974 | 1974 | 1976 | 1976 | 1989 | 1977 |
| Mean Precipitation (in.) | 0.41 | 0.38 | 0.50 | 0.70 | 1.99 | 2.59 | 2.13 | 2.44 | 2.44 | 1.51 | 0.75 | 0.64 | 16.48 |
| Highest Precipitation (in.) | 1.72 | 0.98 | 1.96 | 3.22 | 6.36 | 8.01 | 4.09 | 6.46 | 5.53 | 4.56 | 2.39 | 2.89 | 8.01 |
| Year Highest Occurred | 1983 | 1987 | 1985 | 1997 | 1999 | 1999 | 1972 | 1987 | 1985 | 1974 | 1998 | 1991 | 1999 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.01 | 0.00 | 0.11 | 0.07 | 0.23 | 0.14 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 2000 | 2000 | 1997 | 1996 | 1989 | 1990 | 1998 | 1982 | 2000 | 1989 | 1999 | 1996 | 2000 |
| Heating Degree Days (F) | 860. | 650. | 508. | 262. | 76. | 4. | 0. | 1. | 40. | 208. | 546. | 825. | 3980. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 17. | 123. | 311. | 395. | 343. | 165. | 18. | 0. | 0. | 1372. |