| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 54.2 | 59.9 | 68.1 | 76.1 | 84.2 | 90.6 | 92.9 | 91.3 | 84.8 | 76.5 | 64.6 | 56.1 | 74.9 |
| Highest Mean Max. Temperature (F) | 61.6 | 69.0 | 75.5 | 82.8 | 93.7 | 99.3 | 99.4 | 96.7 | 93.4 | 83.6 | 72.6 | 62.5 | 99.4 |
| Year Highest Occurred | 1986 | 1976 | 1974 | 1978 | 1996 | 1990 | 1998 | 1999 | 1977 | 1979 | 1999 | 1973 | 1998 |
| Lowest Mean Max. Temperature (F) | 43.1 | 48.6 | 61.1 | 68.5 | 79.0 | 84.5 | 83.9 | 85.6 | 76.3 | 68.1 | 55.0 | 44.1 | 43.1 |
| Year Lowest Occurred | 1979 | 1978 | 1987 | 1997 | 1987 | 1986 | 1976 | 1971 | 1974 | 1976 | 2000 | 1983 | 1979 |
| Mean Temperature (F) | 40.1 | 45.0 | 52.2 | 60.2 | 69.5 | 76.8 | 79.7 | 78.2 | 71.9 | 62.3 | 50.2 | 42.1 | 60.7 |
| Highest Mean Temperature (F) | 45.0 | 52.1 | 58.9 | 65.6 | 76.6 | 82.8 | 83.9 | 81.8 | 78.7 | 65.6 | 55.2 | 46.7 | 83.9 |
| Year Highest Occurred | 1998 | 1976 | 1974 | 1986 | 1996 | 1990 | 1998 | 1985 | 1977 | 1983 | 1973 | 1984 | 1998 |
| Lowest Mean Temperature (F) | 32.4 | 37.3 | 46.6 | 54.6 | 65.7 | 73.7 | 74.1 | 74.7 | 66.8 | 54.7 | 44.0 | 32.7 | 32.4 |
| Year Lowest Occurred | 1979 | 1978 | 1996 | 1997 | 1976 | 1997 | 1976 | 1971 | 1974 | 1976 | 2000 | 1983 | 1979 |
| Mean Min. Temperature (F) | 26.0 | 30.0 | 36.2 | 44.3 | 54.8 | 63.0 | 66.4 | 65.0 | 59.0 | 48.0 | 35.7 | 28.0 | 46.4 |
| Highest Mean Min. Temperature (F) | 30.2 | 35.2 | 42.2 | 50.7 | 59.4 | 66.3 | 68.6 | 67.8 | 64.0 | 53.3 | 40.5 | 34.7 | 68.6 |
| Year Highest Occurred | 1975 | 1976 | 1974 | 1986 | 1996 | 1990 | 1993 | 1977 | 1977 | 1983 | 1983 | 1984 | 1993 |
| Lowest Mean Min. Temperature (F) | 21.1 | 25.1 | 28.6 | 39.7 | 52.1 | 60.6 | 64.3 | 61.5 | 54.7 | 41.4 | 29.9 | 20.4 | 20.4 |
| Year Lowest Occurred | 1977 | 1994 | 1996 | 1984 | 1976 | 1989 | 1976 | 1976 | 1993 | 1976 | 1993 | 1989 | 1989 |
| Mean Precipitation (in.) | 0.57 | 0.77 | 0.73 | 0.88 | 2.35 | 2.81 | 2.19 | 2.00 | 3.42 | 1.76 | 0.82 | 0.77 | 19.07 |
| Highest Precipitation (in.) | 2.55 | 2.57 | 2.24 | 4.24 | 8.62 | 7.29 | 7.92 | 6.06 | 9.78 | 7.89 | 2.92 | 4.97 | 9.78 |
| Year Highest Occurred | 1973 | 1992 | 1999 | 1976 | 1987 | 1986 | 1976 | 1972 | 1980 | 1985 | 1984 | 1991 | 1980 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.16 | 0.11 | 0.08 | 0.06 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1987 | 1999 | 1997 | 1991 | 1996 | 1974 | 2000 | 1994 | 1979 | 1992 | 1999 | 1973 | 1987 |
| Heating Degree Days (F) | 772. | 561. | 399. | 179. | 41. | 1. | 0. | 0. | 15. | 130. | 450. | 712. | 3260. |
| Cooling Degree Days (F) | 0. | 0. | 1. | 36. | 181. | 355. | 454. | 409. | 221. | 44. | 4. | 0. | 1705. |