| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 43.6 | 46.5 | 51.9 | 59.9 | 69.9 | 80.6 | 84.3 | 81.4 | 75.3 | 63.6 | 51.6 | 44.6 | 62.8 |
| Highest Mean Max. Temperature (F) | 52.1 | 52.6 | 61.6 | 69.8 | 78.0 | 85.5 | 89.6 | 86.6 | 79.0 | 71.0 | 61.5 | 53.1 | 89.6 |
| Year Highest Occurred | 1986 | 1995 | 1972 | 1989 | 1984 | 1996 | 1994 | 1994 | 1979 | 1988 | 1999 | 1980 | 1994 |
| Lowest Mean Max. Temperature (F) | 34.5 | 39.5 | 40.7 | 49.5 | 62.7 | 77.0 | 80.0 | 77.0 | 70.0 | 55.7 | 44.5 | 36.6 | 34.5 |
| Year Lowest Occurred | 1979 | 1998 | 1973 | 1975 | 1995 | 1995 | 1984 | 1984 | 1986 | 1989 | 1972 | 1971 | 1979 |
| Mean Temperature (F) | 30.4 | 33.5 | 38.0 | 44.1 | 52.4 | 61.5 | 67.0 | 65.3 | 59.0 | 48.3 | 37.6 | 31.5 | 47.4 |
| Highest Mean Temperature (F) | 38.1 | 38.7 | 43.5 | 51.1 | 59.2 | 65.6 | 70.2 | 69.3 | 62.0 | 53.8 | 44.4 | 38.6 | 70.2 |
| Year Highest Occurred | 1986 | 1995 | 1972 | 1989 | 2000 | 1994 | 1996 | 1994 | 1994 | 1988 | 1999 | 1980 | 1996 |
| Lowest Mean Temperature (F) | 23.3 | 28.0 | 31.6 | 36.2 | 47.5 | 58.0 | 64.2 | 62.4 | 54.8 | 42.5 | 33.0 | 24.7 | 23.3 |
| Year Lowest Occurred | 1979 | 1994 | 1973 | 1975 | 1995 | 1998 | 1987 | 1979 | 1986 | 1971 | 2000 | 1990 | 1979 |
| Mean Min. Temperature (F) | 17.2 | 20.4 | 24.0 | 28.3 | 34.9 | 42.3 | 49.7 | 49.1 | 42.7 | 32.9 | 23.5 | 18.3 | 31.9 |
| Highest Mean Min. Temperature (F) | 24.8 | 27.0 | 28.1 | 33.0 | 40.6 | 47.0 | 52.7 | 52.1 | 48.0 | 37.0 | 27.6 | 24.0 | 52.7 |
| Year Highest Occurred | 1980 | 1992 | 1992 | 1992 | 2000 | 1988 | 1996 | 1982 | 1997 | 1987 | 1996 | 1991 | 1996 |
| Lowest Mean Min. Temperature (F) | 12.0 | 13.9 | 18.5 | 22.8 | 30.1 | 38.6 | 46.1 | 44.7 | 37.9 | 28.4 | 19.5 | 11.4 | 11.4 |
| Year Lowest Occurred | 1979 | 1985 | 1977 | 1975 | 1975 | 1998 | 1987 | 1974 | 1993 | 1984 | 1993 | 1990 | 1990 |
| Mean Precipitation (in.) | 1.58 | 1.67 | 1.95 | 1.07 | 0.63 | 0.47 | 1.96 | 2.04 | 1.40 | 1.35 | 1.28 | 1.10 | 16.50 |
| Highest Precipitation (in.) | 5.44 | 3.95 | 4.51 | 3.19 | 2.62 | 2.25 | 5.37 | 4.55 | 4.71 | 5.20 | 5.26 | 3.87 | 5.44 |
| Year Highest Occurred | 1993 | 1993 | 1978 | 1988 | 1992 | 1988 | 1999 | 1993 | 1997 | 1972 | 1978 | 1978 | 1993 |
| Lowest Precipitation (in.) | 0.04 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.23 | 0.00 | 0.00 | 0.00 | 0.05 | 0.00 |
| Year Lowest Occurred | 1972 | 1977 | 1997 | 1993 | 2000 | 1996 | 1993 | 1976 | 1979 | 1999 | 1999 | 1976 | 1977 |
| Heating Degree Days (F) | 1072. | 883. | 838. | 627. | 397. | 137. | 25. | 57. | 190. | 520. | 824. | 1040. | 6610. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 5. | 31. | 87. | 65. | 9. | 0. | 0. | 0. | 197. |