| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 50.0 | 54.8 | 62.5 | 70.7 | 78.6 | 88.7 | 92.8 | 90.3 | 83.6 | 73.5 | 59.6 | 51.0 | 71.3 |
| Highest Mean Max. Temperature (F) | 62.7 | 65.1 | 72.3 | 79.1 | 87.0 | 95.3 | 98.9 | 96.1 | 90.6 | 79.2 | 68.5 | 59.7 | 98.9 |
| Year Highest Occurred | 1986 | 2000 | 1972 | 1981 | 1974 | 1990 | 1980 | 2000 | 2000 | 1975 | 1999 | 1980 | 1980 |
| Lowest Mean Max. Temperature (F) | 36.0 | 38.0 | 55.4 | 62.0 | 72.6 | 81.9 | 88.9 | 86.5 | 78.0 | 65.6 | 49.7 | 35.7 | 35.7 |
| Year Lowest Occurred | 1979 | 1978 | 1983 | 1997 | 1980 | 1989 | 1990 | 1974 | 1974 | 1984 | 1972 | 1983 | 1983 |
| Mean Temperature (F) | 34.4 | 38.7 | 45.8 | 54.0 | 62.7 | 72.6 | 77.2 | 75.3 | 68.0 | 56.9 | 44.0 | 35.9 | 55.5 |
| Highest Mean Temperature (F) | 43.6 | 47.5 | 51.6 | 61.3 | 68.8 | 77.8 | 81.9 | 79.8 | 74.0 | 59.6 | 50.6 | 43.0 | 81.9 |
| Year Highest Occurred | 1986 | 2000 | 1972 | 1981 | 1996 | 1994 | 1980 | 2000 | 1998 | 1998 | 1999 | 1980 | 1980 |
| Lowest Mean Temperature (F) | 22.7 | 26.0 | 41.1 | 47.6 | 57.2 | 67.9 | 74.1 | 70.8 | 62.6 | 52.2 | 36.6 | 23.5 | 22.7 |
| Year Lowest Occurred | 1979 | 1978 | 1998 | 1997 | 1983 | 1982 | 1990 | 1979 | 1974 | 1984 | 1972 | 1983 | 1979 |
| Mean Min. Temperature (F) | 18.7 | 22.5 | 29.1 | 37.3 | 46.8 | 56.5 | 61.5 | 60.2 | 52.3 | 40.2 | 28.4 | 20.8 | 39.5 |
| Highest Mean Min. Temperature (F) | 24.5 | 29.8 | 34.4 | 43.4 | 51.1 | 61.1 | 65.0 | 63.5 | 57.5 | 44.5 | 33.2 | 27.6 | 65.0 |
| Year Highest Occurred | 1986 | 2000 | 1986 | 1981 | 1977 | 1994 | 1980 | 2000 | 1998 | 1998 | 1981 | 1994 | 1980 |
| Lowest Mean Min. Temperature (F) | 9.4 | 14.1 | 23.9 | 31.8 | 41.4 | 52.2 | 59.4 | 54.6 | 47.2 | 36.4 | 23.3 | 11.3 | 9.4 |
| Year Lowest Occurred | 1979 | 1978 | 1996 | 1983 | 1983 | 1979 | 1990 | 1979 | 1974 | 1976 | 1976 | 1983 | 1979 |
| Mean Precipitation (in.) | 0.39 | 0.43 | 1.19 | 1.46 | 2.58 | 3.04 | 2.69 | 2.85 | 1.49 | 1.20 | 0.71 | 0.50 | 18.53 |
| Highest Precipitation (in.) | 1.30 | 1.85 | 4.67 | 4.66 | 6.21 | 8.97 | 7.32 | 6.69 | 4.10 | 5.77 | 3.16 | 2.21 | 8.97 |
| Year Highest Occurred | 1999 | 1978 | 2000 | 1999 | 1988 | 1989 | 1998 | 1997 | 1988 | 2000 | 1972 | 1997 | 1989 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.05 | 0.05 | 0.12 | 0.38 | 0.35 | 0.52 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1998 | 2000 | 1997 | 1978 | 1974 | 1976 | 1983 | 1976 | 2000 | 1980 | 2000 | 2000 | 1998 |
| Heating Degree Days (F) | 950. | 738. | 595. | 342. | 145. | 16. | 0. | 2. | 49. | 258. | 630. | 904. | 4629. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 11. | 72. | 244. | 377. | 321. | 138. | 6. | 0. | 0. | 1169. |