| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 47.8 | 54.1 | 63.7 | 72.6 | 79.1 | 86.3 | 92.0 | 92.3 | 84.3 | 74.1 | 60.5 | 50.7 | 71.5 |
| Highest Mean Max. Temperature (F) | 58.5 | 66.5 | 69.3 | 77.5 | 86.2 | 92.7 | 99.9 | 99.5 | 94.2 | 81.0 | 70.2 | 58.1 | 99.9 |
| Year Highest Occurred | 1990 | 1976 | 1974 | 1981 | 1977 | 1977 | 1980 | 1980 | 1978 | 1979 | 1999 | 1984 | 1980 |
| Lowest Mean Max. Temperature (F) | 34.2 | 38.6 | 56.2 | 65.5 | 74.8 | 81.3 | 87.7 | 84.4 | 75.5 | 67.8 | 51.1 | 35.5 | 34.2 |
| Year Lowest Occurred | 1979 | 1978 | 1975 | 1983 | 1981 | 2000 | 1972 | 1992 | 1974 | 1976 | 1972 | 1983 | 1979 |
| Mean Temperature (F) | 36.8 | 42.4 | 51.5 | 60.3 | 67.9 | 75.6 | 80.4 | 80.0 | 72.4 | 61.7 | 49.5 | 39.9 | 59.9 |
| Highest Mean Temperature (F) | 45.0 | 52.3 | 56.8 | 66.3 | 73.1 | 79.7 | 85.2 | 85.4 | 80.0 | 67.2 | 57.3 | 47.2 | 85.4 |
| Year Highest Occurred | 1990 | 1976 | 1974 | 1981 | 1977 | 1977 | 1980 | 1980 | 1978 | 1979 | 1999 | 1984 | 1980 |
| Lowest Mean Temperature (F) | 24.3 | 29.0 | 45.4 | 54.3 | 63.0 | 72.0 | 76.7 | 73.6 | 63.8 | 54.9 | 42.4 | 26.3 | 24.3 |
| Year Lowest Occurred | 1979 | 1979 | 1996 | 1983 | 1976 | 1982 | 1972 | 1992 | 1974 | 1976 | 1976 | 1983 | 1979 |
| Mean Min. Temperature (F) | 25.8 | 30.6 | 39.3 | 48.0 | 56.7 | 64.8 | 68.8 | 67.6 | 60.4 | 49.3 | 38.4 | 29.0 | 48.2 |
| Highest Mean Min. Temperature (F) | 33.6 | 38.0 | 45.4 | 55.1 | 62.8 | 68.9 | 72.7 | 71.3 | 68.1 | 55.2 | 44.8 | 37.4 | 72.7 |
| Year Highest Occurred | 1998 | 1976 | 1985 | 1981 | 1974 | 1981 | 1998 | 1980 | 1998 | 1971 | 1973 | 1971 | 1998 |
| Lowest Mean Min. Temperature (F) | 13.2 | 17.6 | 31.9 | 42.2 | 50.3 | 60.9 | 64.4 | 62.7 | 52.1 | 42.0 | 28.9 | 17.0 | 13.2 |
| Year Lowest Occurred | 1977 | 1979 | 1996 | 1997 | 1973 | 1983 | 1971 | 1992 | 1974 | 1976 | 1976 | 1989 | 1977 |
| Mean Precipitation (in.) | 2.38 | 2.44 | 4.15 | 4.08 | 5.66 | 5.19 | 3.48 | 3.23 | 5.35 | 4.33 | 4.65 | 3.20 | 48.14 |
| Highest Precipitation (in.) | 6.64 | 4.96 | 9.71 | 8.14 | 11.06 | 14.23 | 8.76 | 9.00 | 12.65 | 10.18 | 11.34 | 7.52 | 14.23 |
| Year Highest Occurred | 1995 | 1990 | 1973 | 1990 | 1999 | 2000 | 1994 | 1981 | 1973 | 1985 | 1994 | 1984 | 2000 |
| Lowest Precipitation (in.) | 0.09 | 0.15 | 0.56 | 0.24 | 1.62 | 0.90 | 0.13 | 0.00 | 0.29 | 0.68 | 0.62 | 0.27 | 0.00 |
| Year Lowest Occurred | 1986 | 1996 | 1971 | 1989 | 1994 | 1991 | 1974 | 2000 | 1979 | 1978 | 1989 | 1989 | 2000 |
| Heating Degree Days (F) | 875. | 640. | 421. | 176. | 58. | 2. | 0. | 1. | 34. | 156. | 471. | 780. | 3614. |
| Cooling Degree Days (F) | 0. | 0. | 2. | 35. | 147. | 319. | 478. | 464. | 253. | 53. | 5. | 0. | 1756. |