| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 41.4 | 46.8 | 54.3 | 62.0 | 71.6 | 82.6 | 87.9 | 85.9 | 77.5 | 66.6 | 50.1 | 42.6 | 64.1 |
| Highest Mean Max. Temperature (F) | 54.1 | 55.9 | 62.2 | 71.5 | 77.8 | 88.4 | 92.5 | 90.4 | 84.7 | 71.7 | 64.4 | 53.9 | 92.5 |
| Year Highest Occurred | 1986 | 1999 | 1986 | 1981 | 1974 | 1980 | 2000 | 2000 | 1998 | 1975 | 1999 | 1980 | 2000 |
| Lowest Mean Max. Temperature (F) | 28.7 | 31.6 | 46.8 | 52.9 | 60.8 | 75.6 | 84.0 | 82.0 | 71.8 | 56.8 | 40.3 | 26.7 | 26.7 |
| Year Lowest Occurred | 1979 | 1989 | 1983 | 1983 | 1995 | 1982 | 1992 | 1992 | 1973 | 1984 | 1972 | 1983 | 1983 |
| Mean Temperature (F) | 26.8 | 31.8 | 39.2 | 47.3 | 57.0 | 66.9 | 72.1 | 70.3 | 61.2 | 50.0 | 35.5 | 28.1 | 48.9 |
| Highest Mean Temperature (F) | 38.8 | 38.7 | 46.0 | 54.5 | 60.7 | 71.1 | 75.3 | 73.9 | 67.4 | 52.6 | 45.4 | 37.9 | 75.3 |
| Year Highest Occurred | 1986 | 1999 | 1986 | 1981 | 1994 | 1994 | 2000 | 2000 | 1998 | 1988 | 1999 | 1980 | 2000 |
| Lowest Mean Temperature (F) | 14.4 | 19.3 | 34.6 | 40.9 | 50.6 | 62.1 | 69.2 | 67.0 | 57.2 | 44.2 | 28.2 | 13.6 | 13.6 |
| Year Lowest Occurred | 1979 | 1989 | 1980 | 1984 | 1995 | 1982 | 1972 | 1974 | 1974 | 1984 | 1979 | 1983 | 1983 |
| Mean Min. Temperature (F) | 12.2 | 16.8 | 24.1 | 32.5 | 42.3 | 51.2 | 56.3 | 54.6 | 44.9 | 33.3 | 20.9 | 13.5 | 33.6 |
| Highest Mean Min. Temperature (F) | 23.5 | 22.7 | 29.7 | 38.0 | 45.7 | 55.7 | 59.1 | 58.1 | 50.0 | 35.7 | 28.4 | 21.8 | 59.1 |
| Year Highest Occurred | 1986 | 2000 | 1986 | 1992 | 1987 | 1988 | 1999 | 1983 | 1998 | 1998 | 1998 | 1980 | 1999 |
| Lowest Mean Min. Temperature (F) | 0.0 | 7.0 | 19.0 | 27.5 | 38.4 | 47.2 | 53.5 | 49.9 | 39.3 | 29.2 | 13.6 | 0.4 | 0.0 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1983 | 1975 | 1972 | 1974 | 1974 | 1976 | 1979 | 1983 | 1979 |
| Mean Precipitation (in.) | 0.45 | 0.38 | 1.19 | 1.74 | 2.44 | 1.68 | 1.63 | 1.50 | 1.08 | 0.85 | 0.88 | 0.52 | 14.34 |
| Highest Precipitation (in.) | 1.23 | 1.48 | 5.25 | 5.49 | 5.70 | 4.56 | 4.76 | 4.02 | 2.66 | 3.35 | 2.27 | 2.09 | 5.70 |
| Year Highest Occurred | 1989 | 1987 | 1990 | 1999 | 1987 | 1997 | 1977 | 1992 | 1996 | 1984 | 1991 | 1973 | 1987 |
| Lowest Precipitation (in.) | 0.10 | 0.01 | 0.22 | 0.32 | 0.14 | 0.09 | 0.12 | 0.16 | 0.01 | 0.02 | 0.10 | 0.00 | 0.00 |
| Year Lowest Occurred | 1998 | 1991 | 1982 | 1982 | 1974 | 1990 | 1994 | 1985 | 1978 | 1988 | 1984 | 1991 | 1991 |
| Heating Degree Days (F) | 1185. | 929. | 800. | 533. | 265. | 59. | 2. | 13. | 155. | 468. | 886. | 1145. | 6440. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 1. | 15. | 116. | 221. | 175. | 41. | 0. | 0. | 0. | 569. |