| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 49.3 | 54.6 | 61.0 | 67.8 | 77.2 | 86.8 | 87.1 | 84.3 | 79.2 | 69.8 | 57.8 | 50.6 | 68.8 |
| Highest Mean Max. Temperature (F) | 55.9 | 60.9 | 69.7 | 77.3 | 85.8 | 93.2 | 92.1 | 88.4 | 85.4 | 76.2 | 65.9 | 56.7 | 93.2 |
| Year Highest Occurred | 1986 | 1999 | 1989 | 1989 | 1989 | 1994 | 1980 | 1994 | 1998 | 1979 | 1999 | 1981 | 1994 |
| Lowest Mean Max. Temperature (F) | 43.0 | 46.5 | 52.2 | 60.1 | 70.8 | 82.2 | 82.4 | 79.9 | 72.8 | 62.3 | 50.8 | 43.2 | 43.0 |
| Year Lowest Occurred | 1979 | 1973 | 1973 | 1973 | 1992 | 1986 | 1975 | 1974 | 1975 | 1974 | 2000 | 1991 | 1979 |
| Mean Temperature (F) | 35.1 | 39.9 | 45.3 | 51.6 | 60.8 | 69.6 | 72.2 | 69.8 | 64.6 | 54.5 | 43.2 | 36.5 | 53.6 |
| Highest Mean Temperature (F) | 40.2 | 45.1 | 51.8 | 59.0 | 67.3 | 75.3 | 76.1 | 72.9 | 69.8 | 60.2 | 48.2 | 41.2 | 76.1 |
| Year Highest Occurred | 1980 | 1996 | 1989 | 1989 | 1989 | 1990 | 1980 | 1995 | 1998 | 1992 | 1995 | 1977 | 1980 |
| Lowest Mean Temperature (F) | 28.7 | 35.7 | 39.8 | 45.5 | 56.0 | 65.4 | 69.4 | 66.5 | 60.0 | 49.8 | 37.9 | 30.7 | 28.7 |
| Year Lowest Occurred | 1973 | 1974 | 1973 | 1973 | 1975 | 1972 | 1975 | 1974 | 1974 | 1971 | 2000 | 1990 | 1973 |
| Mean Min. Temperature (F) | 20.9 | 25.1 | 29.5 | 35.3 | 44.3 | 52.3 | 57.2 | 55.3 | 50.0 | 39.2 | 28.6 | 22.3 | 38.3 |
| Highest Mean Min. Temperature (F) | 28.5 | 30.3 | 33.9 | 40.7 | 48.8 | 57.8 | 60.1 | 58.9 | 54.9 | 44.7 | 33.0 | 27.0 | 60.1 |
| Year Highest Occurred | 1980 | 1996 | 1974 | 1989 | 1989 | 1990 | 1980 | 1977 | 1983 | 1992 | 1985 | 1977 | 1980 |
| Lowest Mean Min. Temperature (F) | 13.8 | 18.2 | 23.5 | 30.9 | 39.4 | 47.0 | 55.2 | 50.2 | 46.4 | 32.4 | 22.1 | 17.7 | 13.8 |
| Year Lowest Occurred | 1973 | 1974 | 1977 | 1973 | 1972 | 1972 | 1991 | 1993 | 1986 | 1971 | 1976 | 1990 | 1973 |
| Mean Precipitation (in.) | 0.58 | 0.45 | 0.38 | 0.35 | 0.80 | 0.71 | 2.54 | 2.62 | 2.02 | 1.29 | 0.45 | 0.47 | 12.66 |
| Highest Precipitation (in.) | 2.04 | 1.64 | 1.20 | 1.06 | 5.32 | 2.80 | 4.71 | 7.24 | 5.38 | 5.36 | 1.85 | 2.48 | 7.24 |
| Year Highest Occurred | 1983 | 1987 | 1977 | 1992 | 1992 | 1981 | 1986 | 1987 | 1980 | 1972 | 1986 | 1987 | 1987 |
| Lowest Precipitation (in.) | 0.02 | 0.00 | 0.00 | 0.00 | 0.02 | 0.00 | 0.76 | 1.23 | 0.14 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 2000 | 1993 | 1990 | 1991 | 1998 | 1978 | 1991 | 1990 | 1993 | 1990 | 1989 | 1981 | 1993 |
| Heating Degree Days (F) | 928. | 704. | 613. | 406. | 179. | 28. | 1. | 11. | 83. | 332. | 655. | 886. | 4826. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 4. | 47. | 166. | 223. | 160. | 71. | 6. | 0. | 0. | 677. |