| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 46.0 | 48.6 | 52.7 | 60.5 | 69.1 | 80.0 | 83.1 | 80.5 | 75.2 | 65.1 | 53.6 | 47.1 | 63.5 |
| Highest Mean Max. Temperature (F) | 54.4 | 54.2 | 63.7 | 69.6 | 77.4 | 85.7 | 86.8 | 83.6 | 80.6 | 71.1 | 62.3 | 57.0 | 86.8 |
| Year Highest Occurred | 1986 | 1991 | 1972 | 1989 | 1984 | 1974 | 1971 | 1995 | 1979 | 1988 | 1999 | 1980 | 1971 |
| Lowest Mean Max. Temperature (F) | 38.2 | 39.1 | 43.7 | 52.5 | 62.7 | 76.0 | 78.5 | 77.3 | 68.0 | 57.8 | 45.8 | 39.4 | 38.2 |
| Year Lowest Occurred | 1979 | 1998 | 1973 | 1975 | 1995 | 1998 | 1999 | 1999 | 1986 | 1971 | 2000 | 1971 | 1979 |
| Mean Temperature (F) | 33.4 | 35.8 | 39.4 | 45.8 | 53.9 | 63.8 | 68.3 | 66.5 | 61.0 | 50.7 | 40.0 | 34.2 | 49.4 |
| Highest Mean Temperature (F) | 40.4 | 41.7 | 46.1 | 53.5 | 61.5 | 68.7 | 71.0 | 69.5 | 64.6 | 56.1 | 47.6 | 42.5 | 71.0 |
| Year Highest Occurred | 1986 | 1995 | 1989 | 1989 | 1984 | 1994 | 2000 | 1995 | 2000 | 1988 | 1999 | 1980 | 2000 |
| Lowest Mean Temperature (F) | 25.8 | 30.2 | 30.7 | 38.9 | 48.1 | 60.2 | 65.1 | 63.2 | 56.4 | 43.9 | 34.0 | 27.6 | 25.8 |
| Year Lowest Occurred | 1979 | 1998 | 1973 | 1973 | 1980 | 1995 | 1987 | 1979 | 1986 | 1971 | 1972 | 1971 | 1979 |
| Mean Min. Temperature (F) | 20.7 | 23.0 | 26.0 | 31.0 | 38.7 | 47.5 | 53.4 | 52.4 | 46.7 | 36.2 | 26.4 | 21.3 | 35.3 |
| Highest Mean Min. Temperature (F) | 26.3 | 30.3 | 31.9 | 37.4 | 45.5 | 52.7 | 56.2 | 55.3 | 50.8 | 41.0 | 32.8 | 28.1 | 56.2 |
| Year Highest Occurred | 1986 | 1995 | 1989 | 1989 | 1984 | 1994 | 2000 | 1997 | 2000 | 1988 | 1999 | 1980 | 2000 |
| Lowest Mean Min. Temperature (F) | 11.9 | 15.2 | 17.7 | 23.0 | 31.3 | 42.7 | 49.1 | 46.5 | 41.6 | 30.0 | 19.5 | 14.6 | 11.9 |
| Year Lowest Occurred | 1973 | 1979 | 1973 | 1973 | 1979 | 1979 | 1987 | 1979 | 1978 | 1971 | 1972 | 1972 | 1973 |
| Mean Precipitation (in.) | 2.08 | 2.37 | 2.32 | 1.00 | 0.80 | 0.48 | 2.54 | 3.01 | 1.73 | 1.77 | 1.75 | 1.52 | 21.37 |
| Highest Precipitation (in.) | 7.50 | 9.58 | 6.42 | 2.46 | 5.03 | 2.12 | 7.25 | 7.17 | 6.99 | 10.51 | 6.05 | 5.67 | 10.51 |
| Year Highest Occurred | 1993 | 1993 | 1991 | 1999 | 1992 | 1972 | 1990 | 1971 | 1983 | 1972 | 1985 | 1984 | 1972 |
| Lowest Precipitation (in.) | 0.00 | 0.07 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.28 | 0.00 | 0.00 | 0.00 | 0.05 | 0.00 |
| Year Lowest Occurred | 1972 | 1972 | 1988 | 1996 | 2000 | 1998 | 1993 | 1980 | 1988 | 1999 | 1999 | 1985 | 1972 |
| Heating Degree Days (F) | 981. | 818. | 796. | 578. | 357. | 103. | 10. | 33. | 144. | 446. | 749. | 955. | 5970. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 13. | 65. | 110. | 77. | 21. | 2. | 0. | 0. | 288. |