| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 35.6 | 42.5 | 52.8 | 62.5 | 72.0 | 83.0 | 91.0 | 89.5 | 79.2 | 65.6 | 48.1 | 37.3 | 63.3 |
| Highest Mean Max. Temperature (F) | 43.2 | 53.1 | 59.8 | 72.0 | 79.1 | 93.1 | 95.7 | 93.1 | 86.1 | 74.8 | 57.7 | 44.8 | 95.7 |
| Year Highest Occurred | 1994 | 1995 | 1992 | 1987 | 1992 | 1974 | 1989 | 1994 | 1990 | 1988 | 1999 | 1995 | 1989 |
| Lowest Mean Max. Temperature (F) | 26.7 | 31.1 | 45.1 | 54.4 | 66.4 | 73.8 | 82.5 | 85.3 | 73.0 | 57.8 | 41.1 | 29.3 | 26.7 |
| Year Lowest Occurred | 1984 | 1984 | 1984 | 1983 | 1995 | 1998 | 1993 | 1993 | 1986 | 1984 | 2000 | 1985 | 1984 |
| Mean Temperature (F) | 26.2 | 31.6 | 40.8 | 48.5 | 57.0 | 66.1 | 72.9 | 71.5 | 62.2 | 50.4 | 37.1 | 27.8 | 49.3 |
| Highest Mean Temperature (F) | 35.1 | 40.6 | 47.2 | 54.6 | 62.5 | 72.4 | 76.5 | 74.6 | 69.5 | 56.5 | 43.4 | 34.4 | 76.5 |
| Year Highest Occurred | 1998 | 1995 | 1992 | 1992 | 1992 | 1974 | 1989 | 1994 | 1990 | 1988 | 1995 | 1977 | 1989 |
| Lowest Mean Temperature (F) | 17.2 | 19.5 | 31.6 | 41.4 | 52.5 | 61.4 | 65.3 | 67.6 | 56.9 | 45.4 | 30.9 | 18.5 | 17.2 |
| Year Lowest Occurred | 1989 | 1985 | 1976 | 1975 | 1975 | 1998 | 1993 | 1980 | 1971 | 1984 | 1979 | 1990 | 1989 |
| Mean Min. Temperature (F) | 16.8 | 20.7 | 28.8 | 34.5 | 41.9 | 49.2 | 54.8 | 53.5 | 45.2 | 35.2 | 26.1 | 18.3 | 35.4 |
| Highest Mean Min. Temperature (F) | 27.7 | 30.2 | 34.6 | 38.7 | 47.0 | 54.2 | 59.4 | 57.4 | 52.9 | 39.8 | 30.8 | 25.8 | 59.4 |
| Year Highest Occurred | 1998 | 1986 | 1986 | 1992 | 1993 | 1977 | 1985 | 1998 | 1990 | 2000 | 1998 | 1977 | 1985 |
| Lowest Mean Min. Temperature (F) | 4.9 | 6.3 | 16.9 | 27.7 | 36.6 | 44.1 | 48.0 | 46.8 | 39.4 | 30.1 | 18.7 | 6.2 | 4.9 |
| Year Lowest Occurred | 1989 | 1985 | 1976 | 1975 | 1975 | 1980 | 1993 | 1980 | 1971 | 1980 | 1993 | 1990 | 1989 |
| Mean Precipitation (in.) | 1.76 | 1.45 | 1.75 | 1.87 | 2.26 | 1.09 | 0.93 | 0.87 | 1.54 | 1.92 | 1.47 | 1.35 | 18.26 |
| Highest Precipitation (in.) | 6.23 | 3.67 | 4.90 | 4.96 | 5.57 | 4.08 | 3.54 | 3.50 | 7.96 | 4.57 | 3.61 | 6.26 | 7.96 |
| Year Highest Occurred | 1980 | 1976 | 1982 | 1986 | 1980 | 1998 | 1982 | 1977 | 1982 | 1981 | 1985 | 1983 | 1982 |
| Lowest Precipitation (in.) | 0.40 | 0.01 | 0.33 | 0.15 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.03 | 0.03 | 0.00 |
| Year Lowest Occurred | 1985 | 1988 | 1977 | 1992 | 1972 | 1996 | 2000 | 1985 | 1974 | 1988 | 1976 | 1976 | 1996 |
| Heating Degree Days (F) | 1202. | 934. | 751. | 496. | 267. | 79. | 9. | 8. | 141. | 455. | 837. | 1152. | 6331. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 1. | 16. | 112. | 253. | 209. | 57. | 1. | 0. | 0. | 649. |