| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 60.1 | 60.3 | 60.2 | 62.1 | 63.8 | 67.1 | 69.9 | 71.1 | 72.5 | 70.2 | 64.8 | 60.7 | 65.2 |
| Highest Mean Max. Temperature (F) | 64.1 | 64.5 | 64.0 | 67.4 | 71.0 | 71.4 | 74.2 | 74.4 | 79.7 | 74.6 | 70.9 | 67.3 | 79.7 |
| Year Highest Occurred | 1981 | 1988 | 1978 | 1989 | 1997 | 1976 | 1984 | 1983 | 1984 | 1983 | 1976 | 1980 | 1984 |
| Lowest Mean Max. Temperature (F) | 56.9 | 55.2 | 56.1 | 56.8 | 59.3 | 63.6 | 66.6 | 68.1 | 68.8 | 64.9 | 59.0 | 54.7 | 54.7 |
| Year Lowest Occurred | 1974 | 1989 | 1991 | 1975 | 1971 | 1991 | 1971 | 1973 | 1999 | 2000 | 1994 | 1971 | 1971 |
| Mean Temperature (F) | 50.2 | 51.0 | 51.2 | 52.4 | 54.9 | 57.7 | 60.3 | 61.1 | 60.9 | 57.8 | 53.3 | 49.9 | 55.1 |
| Highest Mean Temperature (F) | 54.0 | 54.7 | 56.2 | 56.6 | 59.0 | 60.8 | 63.7 | 64.4 | 65.5 | 62.8 | 57.4 | 54.1 | 65.5 |
| Year Highest Occurred | 1981 | 1980 | 1978 | 1989 | 1997 | 1992 | 1992 | 1990 | 1983 | 1983 | 1976 | 1980 | 1983 |
| Lowest Mean Temperature (F) | 47.3 | 46.4 | 46.9 | 48.8 | 52.0 | 55.2 | 57.5 | 58.3 | 58.3 | 52.5 | 47.8 | 44.9 | 44.9 |
| Year Lowest Occurred | 1989 | 1989 | 1999 | 1975 | 1971 | 1991 | 1971 | 1973 | 1996 | 1971 | 1994 | 1998 | 1998 |
| Mean Min. Temperature (F) | 40.3 | 41.6 | 42.2 | 42.6 | 46.0 | 48.2 | 50.6 | 51.1 | 49.3 | 45.4 | 41.7 | 39.1 | 44.8 |
| Highest Mean Min. Temperature (F) | 46.4 | 46.1 | 48.4 | 45.9 | 49.0 | 53.2 | 55.9 | 55.6 | 53.2 | 50.9 | 47.0 | 47.0 | 55.9 |
| Year Highest Occurred | 1995 | 1980 | 1978 | 1989 | 1992 | 1992 | 1992 | 1990 | 1983 | 1983 | 1981 | 1983 | 1992 |
| Lowest Mean Min. Temperature (F) | 36.5 | 37.3 | 37.5 | 39.1 | 43.7 | 45.2 | 47.6 | 47.7 | 46.1 | 39.2 | 36.5 | 32.3 | 32.3 |
| Year Lowest Occurred | 1976 | 1974 | 1999 | 1977 | 1978 | 1996 | 1973 | 1975 | 1996 | 1971 | 1994 | 1990 | 1990 |
| Mean Precipitation (in.) | 5.71 | 5.37 | 4.60 | 2.00 | 0.85 | 0.29 | 0.13 | 0.20 | 0.41 | 1.67 | 3.93 | 4.36 | 29.52 |
| Highest Precipitation (in.) | 13.72 | 17.15 | 12.51 | 6.20 | 4.13 | 1.03 | 1.15 | 1.63 | 2.05 | 5.92 | 10.48 | 11.38 | 17.15 |
| Year Highest Occurred | 1995 | 1998 | 1983 | 1978 | 1998 | 1995 | 1974 | 1976 | 1986 | 1972 | 1997 | 1995 | 1998 |
| Lowest Precipitation (in.) | 0.31 | 0.61 | 0.32 | 0.04 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.07 | 0.20 | 0.20 | 0.00 |
| Year Lowest Occurred | 1984 | 1997 | 1972 | 1973 | 1982 | 1973 | 2000 | 1996 | 1987 | 1995 | 1995 | 1989 | 1982 |
| Heating Degree Days (F) | 459. | 394. | 413. | 379. | 314. | 220. | 153. | 128. | 136. | 232. | 354. | 468. | 3650. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 5. | 7. | 12. | 8. | 0. | 0. | 32. |