| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 38.4 | 44.4 | 54.0 | 62.5 | 72.0 | 82.5 | 89.3 | 87.9 | 79.2 | 66.5 | 50.6 | 40.0 | 63.9 |
| Highest Mean Max. Temperature (F) | 45.9 | 56.0 | 60.7 | 71.8 | 78.9 | 88.0 | 94.0 | 90.7 | 84.7 | 75.4 | 60.6 | 46.4 | 94.0 |
| Year Highest Occurred | 1994 | 1995 | 1986 | 1992 | 1992 | 1988 | 1989 | 1994 | 1979 | 1988 | 1999 | 1981 | 1989 |
| Lowest Mean Max. Temperature (F) | 27.4 | 35.3 | 47.3 | 53.9 | 64.7 | 75.3 | 83.9 | 84.9 | 71.8 | 57.6 | 41.2 | 31.6 | 27.4 |
| Year Lowest Occurred | 1984 | 1984 | 1984 | 1975 | 1995 | 1993 | 1993 | 1993 | 1986 | 1984 | 2000 | 1985 | 1984 |
| Mean Temperature (F) | 25.4 | 30.8 | 39.6 | 46.1 | 54.5 | 63.3 | 70.1 | 68.6 | 59.6 | 48.1 | 35.8 | 26.6 | 47.4 |
| Highest Mean Temperature (F) | 33.3 | 38.9 | 45.1 | 52.2 | 59.5 | 67.8 | 73.0 | 72.2 | 65.3 | 53.8 | 40.9 | 32.8 | 73.0 |
| Year Highest Occurred | 1998 | 1995 | 1986 | 1992 | 1992 | 1988 | 1989 | 1994 | 1990 | 1988 | 1981 | 1977 | 1989 |
| Lowest Mean Temperature (F) | 16.8 | 20.5 | 33.9 | 39.1 | 50.7 | 58.4 | 64.5 | 65.4 | 55.2 | 43.9 | 28.7 | 18.9 | 16.8 |
| Year Lowest Occurred | 1984 | 1984 | 1984 | 1975 | 1995 | 1993 | 1993 | 1975 | 1971 | 1984 | 2000 | 1990 | 1984 |
| Mean Min. Temperature (F) | 12.4 | 17.1 | 25.2 | 29.6 | 37.0 | 44.0 | 50.9 | 49.2 | 39.9 | 29.7 | 21.0 | 13.2 | 30.8 |
| Highest Mean Min. Temperature (F) | 22.5 | 25.7 | 30.8 | 33.7 | 41.5 | 47.6 | 54.9 | 54.5 | 45.8 | 34.6 | 25.5 | 20.3 | 54.9 |
| Year Highest Occurred | 1981 | 2000 | 1978 | 1990 | 1993 | 1988 | 1990 | 1983 | 1990 | 1972 | 1983 | 1977 | 1990 |
| Lowest Mean Min. Temperature (F) | -0.2 | 5.6 | 18.5 | 24.3 | 31.6 | 41.1 | 45.0 | 43.9 | 33.8 | 23.9 | 13.6 | 2.6 | -0.2 |
| Year Lowest Occurred | 1989 | 1984 | 1976 | 1975 | 1975 | 1979 | 1993 | 1975 | 1971 | 1999 | 1993 | 1990 | 1989 |
| Mean Precipitation (in.) | 1.15 | 1.17 | 1.19 | 1.16 | 1.29 | 0.72 | 1.09 | 1.09 | 1.06 | 1.31 | 1.04 | 0.84 | 13.11 |
| Highest Precipitation (in.) | 2.92 | 3.29 | 3.86 | 2.69 | 3.41 | 2.90 | 5.23 | 4.77 | 5.29 | 3.02 | 2.70 | 3.08 | 5.29 |
| Year Highest Occurred | 1997 | 1980 | 1978 | 1999 | 1991 | 1975 | 1985 | 1983 | 1982 | 1981 | 1973 | 1983 | 1982 |
| Lowest Precipitation (in.) | 0.25 | 0.06 | 0.17 | 0.07 | 0.02 | 0.00 | 0.04 | 0.03 | 0.00 | 0.00 | 0.10 | 0.05 | 0.00 |
| Year Lowest Occurred | 1994 | 1988 | 1972 | 1992 | 1974 | 1994 | 1978 | 1974 | 1979 | 1999 | 1976 | 1976 | 1994 |
| Heating Degree Days (F) | 1228. | 959. | 789. | 570. | 328. | 110. | 11. | 25. | 190. | 523. | 876. | 1190. | 6799. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 4. | 57. | 168. | 136. | 26. | 0. | 0. | 0. | 391. |