| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 39.8 | 42.1 | 48.4 | 56.1 | 65.5 | 77.2 | 85.2 | 82.9 | 73.0 | 60.6 | 47.5 | 40.4 | 59.9 |
| Highest Mean Max. Temperature (F) | 48.3 | 50.8 | 57.8 | 63.9 | 71.6 | 83.4 | 88.0 | 85.5 | 78.2 | 67.4 | 58.7 | 49.2 | 88.0 |
| Year Highest Occurred | 1986 | 1995 | 1997 | 1992 | 1992 | 1974 | 1989 | 1994 | 1995 | 1988 | 1999 | 1980 | 1989 |
| Lowest Mean Max. Temperature (F) | 31.8 | 34.9 | 40.5 | 46.8 | 58.6 | 69.1 | 81.7 | 80.2 | 66.6 | 52.5 | 38.9 | 33.2 | 31.8 |
| Year Lowest Occurred | 1979 | 1993 | 1973 | 1975 | 1995 | 1995 | 1982 | 1983 | 1986 | 1984 | 2000 | 1990 | 1979 |
| Mean Temperature (F) | 28.7 | 31.4 | 36.6 | 43.6 | 52.7 | 63.1 | 71.3 | 69.3 | 60.0 | 48.4 | 36.0 | 29.1 | 47.5 |
| Highest Mean Temperature (F) | 35.7 | 39.6 | 42.2 | 50.6 | 58.5 | 67.6 | 74.2 | 71.8 | 64.0 | 55.3 | 45.7 | 36.0 | 74.2 |
| Year Highest Occurred | 1986 | 1995 | 1997 | 1992 | 1992 | 1994 | 1989 | 1994 | 1990 | 1988 | 1999 | 1980 | 1989 |
| Lowest Mean Temperature (F) | 21.2 | 25.4 | 31.2 | 35.3 | 47.4 | 56.1 | 67.5 | 65.8 | 55.3 | 42.6 | 28.9 | 21.3 | 21.2 |
| Year Lowest Occurred | 1979 | 1989 | 1973 | 1975 | 1995 | 1995 | 1993 | 1976 | 1986 | 1984 | 2000 | 1990 | 1979 |
| Mean Min. Temperature (F) | 17.6 | 20.7 | 24.8 | 31.0 | 39.9 | 48.9 | 57.4 | 55.6 | 46.9 | 36.1 | 24.5 | 17.7 | 35.1 |
| Highest Mean Min. Temperature (F) | 24.3 | 28.3 | 30.4 | 37.3 | 45.4 | 53.3 | 60.5 | 58.3 | 51.6 | 43.1 | 32.6 | 24.0 | 60.5 |
| Year Highest Occurred | 2000 | 1995 | 1986 | 1992 | 1992 | 1988 | 1989 | 1971 | 1990 | 1988 | 1999 | 1977 | 1989 |
| Lowest Mean Min. Temperature (F) | 10.5 | 13.8 | 17.4 | 23.8 | 34.1 | 43.1 | 52.4 | 50.9 | 41.8 | 31.7 | 18.6 | 9.4 | 9.4 |
| Year Lowest Occurred | 1979 | 1985 | 1977 | 1975 | 1975 | 1995 | 1993 | 1976 | 1971 | 1971 | 1994 | 1990 | 1990 |
| Mean Precipitation (in.) | 0.90 | 1.25 | 1.42 | 1.02 | 1.47 | 0.94 | 0.79 | 1.35 | 1.73 | 1.24 | 0.79 | 0.71 | 13.61 |
| Highest Precipitation (in.) | 3.36 | 3.34 | 2.93 | 2.09 | 3.55 | 3.73 | 2.03 | 4.92 | 6.76 | 2.84 | 1.83 | 1.87 | 6.76 |
| Year Highest Occurred | 1993 | 1998 | 1990 | 1995 | 1980 | 1997 | 1997 | 1983 | 1982 | 2000 | 1983 | 1971 | 1982 |
| Lowest Precipitation (in.) | 0.11 | 0.15 | 0.00 | 0.16 | 0.19 | 0.00 | 0.05 | 0.06 | 0.02 | 0.08 | 0.06 | 0.01 | 0.00 |
| Year Lowest Occurred | 1991 | 1991 | 1997 | 2000 | 1974 | 1996 | 2000 | 1985 | 1979 | 1999 | 1999 | 1989 | 1997 |
| Heating Degree Days (F) | 1126. | 942. | 881. | 643. | 388. | 131. | 8. | 14. | 172. | 518. | 869. | 1115. | 6807. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 7. | 72. | 204. | 145. | 20. | 1. | 0. | 0. | 449. |