| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 52.6 | 57.8 | 64.9 | 72.4 | 81.1 | 90.4 | 92.2 | 89.6 | 83.6 | 74.0 | 61.0 | 52.8 | 72.7 |
| Highest Mean Max. Temperature (F) | 62.1 | 66.5 | 72.9 | 78.6 | 90.6 | 97.7 | 97.9 | 94.5 | 91.0 | 80.5 | 69.7 | 62.9 | 97.9 |
| Year Highest Occurred | 1986 | 1995 | 1989 | 1989 | 1996 | 1990 | 1980 | 1995 | 2000 | 1979 | 1999 | 1980 | 1980 |
| Lowest Mean Max. Temperature (F) | 42.4 | 50.6 | 60.1 | 62.2 | 76.2 | 85.4 | 86.8 | 85.0 | 77.2 | 66.8 | 51.4 | 44.7 | 42.4 |
| Year Lowest Occurred | 1979 | 1989 | 1973 | 1997 | 1980 | 1986 | 1991 | 1971 | 1991 | 1984 | 1972 | 1997 | 1979 |
| Mean Temperature (F) | 37.6 | 42.0 | 48.6 | 56.0 | 65.0 | 74.5 | 77.8 | 75.8 | 69.0 | 58.4 | 46.2 | 38.2 | 57.4 |
| Highest Mean Temperature (F) | 44.2 | 49.1 | 53.7 | 62.3 | 73.2 | 80.5 | 83.2 | 80.1 | 73.7 | 61.7 | 51.7 | 46.3 | 83.2 |
| Year Highest Occurred | 1986 | 2000 | 1974 | 1981 | 1996 | 1990 | 1980 | 1995 | 1983 | 1979 | 1973 | 1980 | 1980 |
| Lowest Mean Temperature (F) | 30.4 | 36.2 | 44.9 | 49.0 | 61.0 | 70.5 | 74.1 | 71.4 | 65.0 | 53.1 | 39.4 | 32.3 | 30.4 |
| Year Lowest Occurred | 1979 | 1989 | 1998 | 1973 | 1983 | 1992 | 1991 | 1971 | 1991 | 1976 | 1972 | 1997 | 1979 |
| Mean Min. Temperature (F) | 22.6 | 26.2 | 32.2 | 39.6 | 48.9 | 58.5 | 63.3 | 61.9 | 54.4 | 42.7 | 31.4 | 23.5 | 42.1 |
| Highest Mean Min. Temperature (F) | 26.4 | 33.1 | 37.1 | 46.7 | 55.8 | 63.2 | 68.5 | 65.6 | 58.7 | 46.5 | 37.3 | 29.6 | 68.5 |
| Year Highest Occurred | 1986 | 2000 | 1986 | 1981 | 1996 | 1990 | 1980 | 1995 | 1983 | 1974 | 1978 | 1980 | 1980 |
| Lowest Mean Min. Temperature (F) | 18.4 | 21.9 | 28.0 | 33.3 | 43.9 | 54.5 | 59.6 | 57.8 | 51.5 | 37.5 | 25.4 | 15.7 | 15.7 |
| Year Lowest Occurred | 1977 | 1989 | 1977 | 1973 | 1983 | 1992 | 1989 | 1971 | 1974 | 1976 | 1976 | 1989 | 1989 |
| Mean Precipitation (in.) | 0.37 | 0.39 | 0.69 | 0.99 | 1.48 | 1.68 | 2.80 | 2.77 | 1.68 | 1.45 | 0.66 | 0.55 | 15.51 |
| Highest Precipitation (in.) | 1.23 | 1.44 | 2.76 | 5.72 | 3.31 | 5.12 | 7.63 | 6.58 | 4.42 | 6.36 | 2.71 | 3.05 | 7.63 |
| Year Highest Occurred | 1983 | 1987 | 2000 | 1999 | 1999 | 1978 | 1990 | 1972 | 1982 | 2000 | 1986 | 1997 | 1990 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.02 | 0.37 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 2000 | 2000 | 1996 | 1996 | 1998 | 1998 | 1987 | 1994 | 2000 | 1980 | 1999 | 1993 | 2000 |
| Heating Degree Days (F) | 849. | 645. | 510. | 286. | 101. | 6. | 0. | 1. | 29. | 219. | 563. | 833. | 4042. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 16. | 101. | 290. | 395. | 334. | 149. | 12. | 0. | 0. | 1297. |