| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 54.2 | 61.8 | 67.0 | 74.5 | 82.7 | 90.5 | 94.6 | 92.6 | 88.6 | 79.8 | 65.1 | 55.1 | 75.5 |
| Highest Mean Max. Temperature (F) | 60.3 | 68.9 | 74.0 | 82.4 | 89.9 | 96.0 | 99.3 | 96.5 | 93.2 | 85.2 | 73.1 | 61.3 | 99.3 |
| Year Highest Occurred | 2000 | 1991 | 1997 | 1987 | 1992 | 1981 | 1996 | 1998 | 1979 | 1990 | 1995 | 1999 | 1996 |
| Lowest Mean Max. Temperature (F) | 47.9 | 58.1 | 61.2 | 67.6 | 72.1 | 84.8 | 89.2 | 86.5 | 82.7 | 73.4 | 57.6 | 48.9 | 47.9 |
| Year Lowest Occurred | 1985 | 1971 | 1982 | 1983 | 1998 | 1980 | 1987 | 1976 | 1986 | 1984 | 1982 | 1972 | 1985 |
| Mean Temperature (F) | 45.6 | 50.9 | 54.8 | 59.8 | 66.8 | 73.2 | 77.1 | 75.8 | 72.3 | 64.5 | 53.0 | 45.3 | 61.6 |
| Highest Mean Temperature (F) | 52.0 | 54.9 | 59.1 | 65.6 | 73.2 | 78.1 | 82.1 | 80.5 | 75.6 | 69.0 | 59.5 | 51.0 | 82.1 |
| Year Highest Occurred | 1995 | 1992 | 1997 | 1987 | 1992 | 1981 | 1996 | 1998 | 1991 | 1991 | 1995 | 1995 | 1996 |
| Lowest Mean Temperature (F) | 39.5 | 46.0 | 50.3 | 53.1 | 59.7 | 68.2 | 72.2 | 71.4 | 67.6 | 59.7 | 48.7 | 40.7 | 39.5 |
| Year Lowest Occurred | 1972 | 1971 | 1973 | 1975 | 1977 | 1980 | 1987 | 1976 | 1986 | 1971 | 1994 | 1990 | 1972 |
| Mean Min. Temperature (F) | 37.0 | 40.0 | 42.6 | 45.1 | 50.8 | 55.9 | 59.6 | 58.9 | 55.9 | 49.2 | 40.9 | 35.5 | 47.6 |
| Highest Mean Min. Temperature (F) | 45.7 | 45.9 | 48.4 | 50.0 | 56.5 | 60.3 | 64.8 | 64.5 | 60.4 | 54.0 | 47.5 | 43.2 | 64.8 |
| Year Highest Occurred | 1995 | 1992 | 1993 | 1992 | 1992 | 1981 | 1996 | 1998 | 1998 | 1991 | 1997 | 1996 | 1996 |
| Lowest Mean Min. Temperature (F) | 30.1 | 33.9 | 37.6 | 38.6 | 45.3 | 51.0 | 55.1 | 55.3 | 52.0 | 43.5 | 36.6 | 26.1 | 26.1 |
| Year Lowest Occurred | 1976 | 1971 | 1977 | 1975 | 1977 | 1971 | 1987 | 1973 | 1973 | 1971 | 1971 | 1990 | 1990 |
| Mean Precipitation (in.) | 2.55 | 2.18 | 2.00 | 0.63 | 0.39 | 0.04 | 0.02 | 0.02 | 0.27 | 0.61 | 1.23 | 1.51 | 11.45 |
| Highest Precipitation (in.) | 7.94 | 9.34 | 6.14 | 2.20 | 3.97 | 0.46 | 0.30 | 0.42 | 2.04 | 2.07 | 4.78 | 4.56 | 9.34 |
| Year Highest Occurred | 1995 | 1998 | 1995 | 1978 | 1998 | 1988 | 1974 | 1975 | 1983 | 2000 | 1972 | 1996 | 1998 |
| Lowest Precipitation (in.) | 0.04 | 0.04 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1991 | 1997 | 1988 | 1992 | 1992 | 1999 | 2000 | 2000 | 1997 | 1999 | 1995 | 1989 | 1988 |
| Heating Degree Days (F) | 601. | 395. | 323. | 195. | 79. | 6. | 0. | 0. | 8. | 97. | 365. | 611. | 2680. |
| Cooling Degree Days (F) | 0. | 0. | 7. | 39. | 133. | 251. | 376. | 333. | 225. | 81. | 4. | 0. | 1449. |