| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 36.5 | 43.2 | 53.5 | 62.3 | 73.1 | 85.5 | 93.0 | 90.9 | 80.5 | 66.5 | 50.0 | 38.3 | 64.4 |
| Highest Mean Max. Temperature (F) | 43.5 | 52.5 | 61.3 | 70.9 | 79.1 | 91.0 | 96.9 | 94.7 | 86.4 | 73.7 | 60.1 | 47.5 | 96.9 |
| Year Highest Occurred | 1994 | 1995 | 1972 | 1992 | 1992 | 1994 | 1988 | 1994 | 1979 | 1988 | 1999 | 1977 | 1988 |
| Lowest Mean Max. Temperature (F) | 26.0 | 31.6 | 47.0 | 53.3 | 66.5 | 79.0 | 88.6 | 88.4 | 74.6 | 57.8 | 42.0 | 29.5 | 26.0 |
| Year Lowest Occurred | 1984 | 1984 | 1984 | 1975 | 1983 | 1998 | 1992 | 1993 | 1986 | 1984 | 2000 | 1985 | 1984 |
| Mean Temperature (F) | 25.9 | 31.4 | 40.2 | 47.6 | 57.1 | 67.5 | 75.4 | 73.5 | 63.5 | 50.6 | 37.6 | 27.4 | 49.8 |
| Highest Mean Temperature (F) | 34.0 | 38.6 | 45.7 | 54.5 | 62.3 | 72.2 | 79.3 | 77.1 | 69.3 | 56.5 | 44.1 | 35.4 | 79.3 |
| Year Highest Occurred | 2000 | 1995 | 1986 | 1992 | 1992 | 1994 | 1988 | 2000 | 1990 | 1988 | 1999 | 1977 | 1988 |
| Lowest Mean Temperature (F) | 17.2 | 20.0 | 34.4 | 40.8 | 51.8 | 62.3 | 70.9 | 70.4 | 56.7 | 44.7 | 31.0 | 19.3 | 17.2 |
| Year Lowest Occurred | 1973 | 1984 | 1976 | 1975 | 1983 | 1998 | 1993 | 1976 | 1971 | 1984 | 2000 | 1990 | 1973 |
| Mean Min. Temperature (F) | 15.2 | 19.5 | 26.8 | 32.9 | 41.1 | 49.5 | 57.8 | 56.1 | 46.5 | 34.6 | 25.1 | 16.4 | 35.1 |
| Highest Mean Min. Temperature (F) | 25.4 | 26.6 | 32.0 | 38.1 | 45.4 | 54.0 | 62.4 | 60.2 | 53.0 | 39.2 | 28.6 | 23.3 | 62.4 |
| Year Highest Occurred | 2000 | 2000 | 1978 | 1992 | 1992 | 1988 | 1990 | 2000 | 1990 | 1988 | 1998 | 1977 | 1990 |
| Lowest Mean Min. Temperature (F) | 4.9 | 8.3 | 20.3 | 28.2 | 36.3 | 45.4 | 52.6 | 51.2 | 38.6 | 30.2 | 19.8 | 6.8 | 4.9 |
| Year Lowest Occurred | 1989 | 1984 | 1976 | 1982 | 1975 | 1975 | 1993 | 1974 | 1971 | 1976 | 1979 | 1990 | 1989 |
| Mean Precipitation (in.) | 0.91 | 0.82 | 1.03 | 1.04 | 1.17 | 0.66 | 0.83 | 0.86 | 0.95 | 1.19 | 0.88 | 0.59 | 10.93 |
| Highest Precipitation (in.) | 2.47 | 2.09 | 2.55 | 2.92 | 3.01 | 2.12 | 3.67 | 2.11 | 5.30 | 2.83 | 2.69 | 1.97 | 5.30 |
| Year Highest Occurred | 1980 | 1990 | 1978 | 1971 | 1991 | 1984 | 1982 | 1983 | 1982 | 1981 | 1983 | 1983 | 1982 |
| Lowest Precipitation (in.) | 0.19 | 0.07 | 0.20 | 0.10 | 0.00 | 0.00 | 0.01 | 0.07 | 0.00 | 0.01 | 0.02 | 0.07 | 0.00 |
| Year Lowest Occurred | 1986 | 1972 | 1972 | 1977 | 1974 | 1978 | 1978 | 1996 | 1979 | 1978 | 1977 | 1986 | 1974 |
| Heating Degree Days (F) | 1213. | 943. | 771. | 524. | 265. | 61. | 2. | 3. | 113. | 449. | 823. | 1167. | 6334. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 1. | 18. | 136. | 324. | 267. | 68. | 1. | 0. | 0. | 815. |