| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 43.9 | 50.9 | 59.5 | 67.9 | 77.1 | 88.7 | 93.8 | 91.5 | 83.1 | 71.2 | 55.0 | 45.3 | 69.0 |
| Highest Mean Max. Temperature (F) | 58.3 | 61.7 | 67.1 | 76.2 | 84.3 | 95.6 | 97.1 | 98.2 | 89.1 | 77.1 | 64.7 | 56.2 | 98.2 |
| Year Highest Occurred | 1986 | 1976 | 1989 | 1981 | 1998 | 1990 | 1980 | 1995 | 1998 | 1975 | 1999 | 1980 | 1995 |
| Lowest Mean Max. Temperature (F) | 28.3 | 36.9 | 52.7 | 60.1 | 69.1 | 81.5 | 89.3 | 86.7 | 77.8 | 65.2 | 40.8 | 30.0 | 28.3 |
| Year Lowest Occurred | 1979 | 1989 | 1984 | 1973 | 1995 | 1982 | 1990 | 1977 | 1999 | 1984 | 1972 | 1983 | 1979 |
| Mean Temperature (F) | 29.6 | 35.8 | 43.9 | 52.2 | 62.1 | 72.7 | 78.1 | 76.1 | 67.2 | 54.7 | 39.8 | 31.0 | 53.6 |
| Highest Mean Temperature (F) | 40.9 | 43.8 | 49.6 | 58.8 | 67.4 | 77.6 | 80.5 | 81.1 | 72.7 | 57.4 | 46.8 | 39.9 | 81.1 |
| Year Highest Occurred | 1986 | 1976 | 1986 | 1981 | 1996 | 1994 | 1980 | 1995 | 1998 | 1974 | 1999 | 1980 | 1995 |
| Lowest Mean Temperature (F) | 15.0 | 24.9 | 38.2 | 46.1 | 57.1 | 67.7 | 74.8 | 72.4 | 63.4 | 50.2 | 29.4 | 18.4 | 15.0 |
| Year Lowest Occurred | 1979 | 1989 | 1980 | 1973 | 1983 | 1982 | 1992 | 1992 | 1971 | 1976 | 1972 | 1983 | 1979 |
| Mean Min. Temperature (F) | 15.3 | 20.6 | 28.2 | 36.4 | 47.1 | 56.7 | 62.4 | 60.6 | 51.3 | 38.1 | 24.6 | 16.6 | 38.2 |
| Highest Mean Min. Temperature (F) | 23.4 | 27.0 | 32.2 | 41.9 | 52.3 | 60.8 | 65.7 | 64.0 | 56.3 | 42.2 | 31.0 | 23.5 | 65.7 |
| Year Highest Occurred | 1986 | 1998 | 1986 | 1985 | 1977 | 1994 | 1998 | 1995 | 1998 | 1998 | 1998 | 1980 | 1998 |
| Lowest Mean Min. Temperature (F) | 1.6 | 12.9 | 21.0 | 32.0 | 41.6 | 52.7 | 59.8 | 56.9 | 47.4 | 33.9 | 17.9 | 6.8 | 1.6 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1980 | 1971 | 1983 | 1995 | 1992 | 1974 | 1976 | 1972 | 1983 | 1979 |
| Mean Precipitation (in.) | 0.32 | 0.33 | 0.88 | 1.25 | 1.78 | 1.36 | 2.04 | 1.58 | 0.80 | 0.63 | 0.48 | 0.27 | 11.72 |
| Highest Precipitation (in.) | 0.88 | 1.39 | 3.45 | 4.66 | 4.75 | 3.33 | 5.14 | 4.25 | 2.03 | 1.70 | 1.78 | 0.75 | 5.14 |
| Year Highest Occurred | 1985 | 1993 | 1973 | 1999 | 1995 | 1979 | 1990 | 1977 | 1973 | 1984 | 1991 | 1973 | 1990 |
| Lowest Precipitation (in.) | 0.03 | 0.02 | 0.07 | 0.23 | 0.48 | 0.20 | 0.14 | 0.09 | 0.05 | 0.00 | 0.01 | 0.00 | 0.00 |
| Year Lowest Occurred | 1977 | 1994 | 1977 | 1987 | 1991 | 1981 | 1983 | 1988 | 1983 | 1995 | 1982 | 1980 | 1995 |
| Heating Degree Days (F) | 1097. | 819. | 657. | 394. | 162. | 16. | 0. | 3. | 52. | 323. | 756. | 1056. | 5335. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 9. | 71. | 248. | 406. | 345. | 119. | 1. | 0. | 0. | 1199. |