| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 50.4 | 55.1 | 62.3 | 70.3 | 78.8 | 88.6 | 92.6 | 89.9 | 83.8 | 73.5 | 59.7 | 51.3 | 71.4 |
| Highest Mean Max. Temperature (F) | 61.9 | 64.0 | 71.8 | 78.7 | 88.1 | 95.4 | 101.8 | 95.7 | 89.1 | 79.8 | 69.0 | 61.0 | 101.8 |
| Year Highest Occurred | 1986 | 1999 | 1972 | 1981 | 1974 | 1990 | 1980 | 1983 | 1998 | 1975 | 1999 | 1980 | 1980 |
| Lowest Mean Max. Temperature (F) | 38.5 | 40.7 | 56.2 | 61.0 | 72.7 | 80.0 | 89.5 | 84.8 | 78.3 | 64.4 | 50.4 | 38.1 | 38.1 |
| Year Lowest Occurred | 1979 | 1978 | 1983 | 1997 | 1995 | 1989 | 1996 | 1981 | 1996 | 1984 | 1972 | 1983 | 1983 |
| Mean Temperature (F) | 35.1 | 39.5 | 46.7 | 54.5 | 63.7 | 73.2 | 77.9 | 75.7 | 68.8 | 57.1 | 44.4 | 36.5 | 56.1 |
| Highest Mean Temperature (F) | 44.0 | 45.9 | 52.3 | 61.0 | 69.3 | 78.2 | 84.7 | 80.5 | 73.5 | 60.1 | 50.3 | 43.3 | 84.7 |
| Year Highest Occurred | 1986 | 2000 | 1986 | 1981 | 1996 | 1994 | 1980 | 1983 | 1998 | 1979 | 1981 | 1980 | 1980 |
| Lowest Mean Temperature (F) | 24.7 | 29.5 | 42.2 | 47.6 | 59.5 | 67.8 | 74.9 | 71.8 | 64.4 | 50.8 | 37.1 | 26.5 | 24.7 |
| Year Lowest Occurred | 1979 | 1978 | 1998 | 1997 | 1983 | 1989 | 1992 | 1974 | 1971 | 1976 | 2000 | 1983 | 1979 |
| Mean Min. Temperature (F) | 19.7 | 23.8 | 31.0 | 38.7 | 48.5 | 57.8 | 63.1 | 61.5 | 53.7 | 40.6 | 29.0 | 21.6 | 40.8 |
| Highest Mean Min. Temperature (F) | 26.0 | 32.0 | 36.8 | 43.2 | 53.6 | 61.3 | 67.6 | 65.2 | 59.0 | 44.9 | 37.0 | 28.1 | 67.6 |
| Year Highest Occurred | 1986 | 1987 | 1986 | 1981 | 1994 | 1981 | 1980 | 1983 | 1990 | 2000 | 1981 | 1984 | 1980 |
| Lowest Mean Min. Temperature (F) | 10.9 | 18.3 | 23.5 | 34.0 | 44.4 | 55.3 | 60.1 | 57.8 | 47.4 | 34.4 | 22.4 | 14.9 | 10.9 |
| Year Lowest Occurred | 1979 | 1978 | 1996 | 1998 | 1973 | 1983 | 1992 | 1974 | 1971 | 1976 | 1976 | 1983 | 1979 |
| Mean Precipitation (in.) | 0.40 | 0.33 | 0.96 | 1.48 | 2.47 | 2.18 | 3.10 | 2.67 | 1.58 | 0.99 | 0.67 | 0.35 | 17.18 |
| Highest Precipitation (in.) | 1.35 | 1.75 | 2.82 | 7.15 | 4.60 | 5.43 | 6.48 | 6.86 | 4.82 | 3.20 | 3.95 | 1.37 | 7.15 |
| Year Highest Occurred | 1997 | 1987 | 1973 | 1999 | 1977 | 1989 | 1998 | 1994 | 1988 | 1999 | 1998 | 1997 | 1999 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.07 | 0.00 | 0.24 | 0.70 | 0.31 | 0.52 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1992 | 1994 | 1989 | 2000 | 1974 | 1991 | 1983 | 1983 | 1992 | 1992 | 1999 | 1992 | 1992 |
| Heating Degree Days (F) | 928. | 715. | 570. | 329. | 115. | 11. | 0. | 2. | 38. | 254. | 620. | 886. | 4468. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 14. | 73. | 257. | 400. | 333. | 150. | 8. | 0. | 0. | 1235. |