| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 39.6 | 48.0 | 58.2 | 66.6 | 75.7 | 85.6 | 94.5 | 93.3 | 83.0 | 69.2 | 50.8 | 40.2 | 67.1 |
| Highest Mean Max. Temperature (F) | 48.0 | 56.0 | 66.2 | 77.1 | 85.3 | 93.4 | 100.2 | 98.6 | 90.5 | 79.6 | 59.3 | 46.1 | 100.2 |
| Year Highest Occurred | 1998 | 1992 | 1992 | 1987 | 1992 | 1986 | 1985 | 1971 | 1990 | 1988 | 1999 | 1977 | 1985 |
| Lowest Mean Max. Temperature (F) | 27.5 | 36.8 | 52.1 | 56.7 | 68.7 | 79.4 | 84.4 | 85.7 | 74.6 | 64.5 | 40.3 | 24.0 | 24.0 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1998 | 1998 | 1993 | 1976 | 1985 | 1984 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 31.6 | 38.0 | 46.5 | 53.7 | 62.1 | 70.9 | 78.6 | 77.2 | 67.2 | 55.3 | 41.0 | 32.1 | 54.5 |
| Highest Mean Temperature (F) | 39.5 | 43.3 | 51.7 | 60.2 | 67.7 | 77.0 | 84.3 | 81.9 | 73.1 | 63.6 | 48.2 | 38.6 | 84.3 |
| Year Highest Occurred | 1998 | 1986 | 1986 | 1987 | 1992 | 1986 | 1985 | 1971 | 1990 | 1988 | 1999 | 1973 | 1985 |
| Lowest Mean Temperature (F) | 20.0 | 27.2 | 40.6 | 46.9 | 58.5 | 66.4 | 69.7 | 71.8 | 61.2 | 50.7 | 31.6 | 16.9 | 16.9 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1975 | 1977 | 1993 | 1993 | 1976 | 1985 | 1984 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 23.5 | 27.9 | 34.7 | 40.8 | 48.5 | 56.1 | 62.7 | 61.0 | 51.4 | 41.3 | 31.1 | 23.9 | 41.9 |
| Highest Mean Min. Temperature (F) | 31.3 | 34.4 | 39.6 | 45.2 | 52.7 | 61.5 | 68.3 | 65.1 | 57.9 | 47.6 | 37.1 | 31.3 | 68.3 |
| Year Highest Occurred | 1978 | 1986 | 1986 | 1990 | 1987 | 1977 | 1985 | 1971 | 1998 | 1988 | 1999 | 1973 | 1985 |
| Lowest Mean Min. Temperature (F) | 12.4 | 17.6 | 28.8 | 35.5 | 44.8 | 52.5 | 54.9 | 56.0 | 46.7 | 36.8 | 21.1 | 9.7 | 9.7 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1982 | 1984 | 1993 | 1993 | 1995 | 1972 | 1984 | 1993 | 1985 | 1985 |
| Mean Precipitation (in.) | 0.83 | 0.59 | 0.96 | 1.01 | 1.06 | 0.68 | 0.29 | 0.22 | 0.53 | 0.53 | 0.89 | 0.81 | 8.40 |
| Highest Precipitation (in.) | 1.85 | 2.19 | 2.34 | 3.32 | 3.48 | 2.25 | 1.36 | 0.97 | 2.86 | 1.60 | 2.23 | 2.39 | 3.48 |
| Year Highest Occurred | 1972 | 1986 | 1983 | 1981 | 1998 | 1984 | 1983 | 1979 | 1986 | 1975 | 1988 | 1996 | 1998 |
| Lowest Precipitation (in.) | 0.11 | 0.10 | 0.02 | 0.18 | 0.04 | 0.04 | 0.00 | 0.00 | 0.00 | 0.00 | 0.12 | 0.00 | 0.00 |
| Year Lowest Occurred | 1985 | 1973 | 1992 | 1974 | 1992 | 2000 | 2000 | 1998 | 1999 | 1988 | 1976 | 1989 | 2000 |
| Heating Degree Days (F) | 1037. | 758. | 575. | 351. | 144. | 32. | 2. | 3. | 68. | 309. | 721. | 1022. | 5022. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 11. | 55. | 206. | 423. | 379. | 133. | 7. | 0. | 0. | 1214. |