| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 38.1 | 42.9 | 50.1 | 59.6 | 69.4 | 81.6 | 86.9 | 84.5 | 76.3 | 63.6 | 48.3 | 39.9 | 61.8 |
| Highest Mean Max. Temperature (F) | 46.7 | 50.6 | 60.6 | 67.5 | 77.6 | 86.7 | 90.5 | 88.6 | 83.0 | 71.3 | 61.3 | 49.1 | 90.5 |
| Year Highest Occurred | 1981 | 1995 | 1999 | 1989 | 2000 | 1990 | 2000 | 1998 | 1979 | 1999 | 1999 | 1980 | 2000 |
| Lowest Mean Max. Temperature (F) | 28.9 | 37.6 | 42.4 | 49.9 | 63.9 | 75.2 | 82.8 | 80.6 | 68.8 | 54.2 | 38.8 | 31.5 | 28.9 |
| Year Lowest Occurred | 1979 | 1974 | 1973 | 1983 | 1995 | 1983 | 1986 | 1987 | 1985 | 1984 | 1972 | 1978 | 1979 |
| Mean Temperature (F) | 26.8 | 31.2 | 37.7 | 45.3 | 54.4 | 64.8 | 70.5 | 68.7 | 61.2 | 50.0 | 36.7 | 28.8 | 48.0 |
| Highest Mean Temperature (F) | 34.8 | 39.5 | 45.2 | 51.9 | 60.5 | 69.2 | 73.0 | 72.3 | 66.4 | 55.1 | 46.0 | 37.6 | 73.0 |
| Year Highest Occurred | 1986 | 1995 | 1999 | 1992 | 2000 | 1994 | 1996 | 1994 | 1998 | 1988 | 1999 | 1980 | 1996 |
| Lowest Mean Temperature (F) | 18.8 | 24.7 | 30.8 | 37.7 | 50.0 | 60.6 | 67.3 | 65.8 | 55.4 | 43.3 | 29.1 | 20.8 | 18.8 |
| Year Lowest Occurred | 1979 | 1974 | 1980 | 1983 | 1975 | 1983 | 1992 | 1972 | 1985 | 1984 | 1972 | 1978 | 1979 |
| Mean Min. Temperature (F) | 15.4 | 19.4 | 25.2 | 31.0 | 39.3 | 47.9 | 54.0 | 52.9 | 46.0 | 36.3 | 25.1 | 17.7 | 34.2 |
| Highest Mean Min. Temperature (F) | 23.6 | 28.3 | 29.8 | 37.1 | 43.8 | 52.2 | 56.4 | 56.8 | 50.5 | 40.5 | 30.7 | 26.2 | 56.8 |
| Year Highest Occurred | 1986 | 1995 | 1999 | 1992 | 1996 | 1994 | 1989 | 1994 | 1998 | 1988 | 1999 | 1980 | 1994 |
| Lowest Mean Min. Temperature (F) | 7.4 | 11.7 | 19.0 | 25.1 | 35.1 | 43.5 | 51.6 | 49.5 | 39.5 | 31.8 | 19.5 | 9.7 | 7.4 |
| Year Lowest Occurred | 1973 | 1974 | 1980 | 1973 | 1971 | 1975 | 1982 | 1972 | 1971 | 1982 | 1972 | 1990 | 1973 |
| Mean Precipitation (in.) | 1.20 | 1.30 | 1.37 | 0.92 | 1.32 | 0.59 | 1.53 | 1.65 | 1.54 | 1.95 | 1.53 | 1.04 | 15.94 |
| Highest Precipitation (in.) | 4.32 | 5.03 | 3.76 | 2.95 | 5.43 | 2.47 | 3.06 | 4.53 | 4.00 | 8.13 | 3.92 | 4.36 | 8.13 |
| Year Highest Occurred | 1993 | 1993 | 1995 | 1986 | 1992 | 1986 | 1977 | 1971 | 1982 | 1972 | 1982 | 1978 | 1972 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.01 | 0.00 |
| Year Lowest Occurred | 1972 | 1972 | 1997 | 1989 | 1989 | 1989 | 1993 | 1985 | 1979 | 1999 | 1989 | 1989 | 1972 |
| Heating Degree Days (F) | 1187. | 948. | 848. | 591. | 337. | 89. | 7. | 21. | 156. | 469. | 848. | 1122. | 6623. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 7. | 81. | 175. | 135. | 40. | 2. | 0. | 0. | 440. |