| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 57.3 | 62.2 | 65.9 | 72.5 | 79.8 | 86.6 | 90.1 | 88.4 | 84.1 | 76.4 | 64.1 | 57.3 | 73.7 |
| Highest Mean Max. Temperature (F) | 62.4 | 69.1 | 73.8 | 79.6 | 86.0 | 92.6 | 94.5 | 92.4 | 93.1 | 81.9 | 70.9 | 63.3 | 94.5 |
| Year Highest Occurred | 1976 | 1988 | 1988 | 1987 | 1997 | 1981 | 1988 | 1998 | 1984 | 1978 | 1986 | 1999 | 1988 |
| Lowest Mean Max. Temperature (F) | 53.6 | 57.9 | 60.5 | 65.4 | 71.1 | 79.7 | 86.8 | 84.0 | 76.3 | 69.5 | 57.3 | 50.2 | 50.2 |
| Year Lowest Occurred | 1982 | 1998 | 1991 | 1975 | 1998 | 1982 | 1987 | 1980 | 1986 | 1972 | 1973 | 1972 | 1972 |
| Mean Temperature (F) | 48.3 | 52.2 | 54.9 | 59.2 | 64.8 | 69.9 | 72.2 | 71.2 | 68.6 | 62.6 | 53.7 | 48.0 | 60.5 |
| Highest Mean Temperature (F) | 52.3 | 56.1 | 58.7 | 63.0 | 69.3 | 76.4 | 75.4 | 73.6 | 74.7 | 65.9 | 57.8 | 51.9 | 76.4 |
| Year Highest Occurred | 1995 | 1991 | 1988 | 1985 | 1997 | 1981 | 1984 | 1984 | 1984 | 1991 | 1995 | 1996 | 1981 |
| Lowest Mean Temperature (F) | 44.6 | 47.8 | 51.0 | 53.4 | 59.6 | 65.9 | 69.9 | 68.2 | 63.2 | 59.6 | 47.7 | 42.7 | 42.7 |
| Year Lowest Occurred | 1972 | 1989 | 1999 | 1975 | 1998 | 1982 | 1987 | 1973 | 1986 | 1971 | 1994 | 1972 | 1972 |
| Mean Min. Temperature (F) | 39.3 | 42.1 | 43.8 | 45.9 | 49.7 | 53.2 | 54.3 | 54.0 | 53.0 | 48.8 | 43.2 | 38.6 | 47.2 |
| Highest Mean Min. Temperature (F) | 46.6 | 46.7 | 48.3 | 50.2 | 53.1 | 60.1 | 57.1 | 57.0 | 57.5 | 52.3 | 47.7 | 45.8 | 60.1 |
| Year Highest Occurred | 1995 | 1980 | 1978 | 1990 | 1993 | 1981 | 1984 | 1983 | 1983 | 1979 | 1981 | 1983 | 1981 |
| Lowest Mean Min. Temperature (F) | 33.5 | 36.8 | 39.0 | 41.4 | 46.6 | 49.9 | 52.2 | 50.6 | 50.0 | 43.4 | 37.6 | 31.2 | 31.2 |
| Year Lowest Occurred | 1972 | 1989 | 1976 | 1975 | 1985 | 1991 | 1994 | 1973 | 1988 | 1971 | 1994 | 1990 | 1990 |
| Mean Precipitation (in.) | 8.65 | 8.08 | 6.54 | 2.24 | 1.06 | 0.17 | 0.07 | 0.13 | 0.55 | 2.12 | 6.04 | 6.50 | 42.15 |
| Highest Precipitation (in.) | 29.90 | 25.41 | 20.34 | 7.20 | 7.52 | 0.97 | 1.71 | 1.52 | 2.98 | 5.62 | 21.20 | 17.37 | 29.90 |
| Year Highest Occurred | 1995 | 1998 | 1983 | 1982 | 1998 | 1993 | 1974 | 1983 | 1989 | 1975 | 1973 | 1983 | 1995 |
| Lowest Precipitation (in.) | 0.41 | 0.16 | 0.07 | 0.15 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.15 | 0.00 | 0.00 |
| Year Lowest Occurred | 1976 | 1971 | 1988 | 1973 | 1992 | 1996 | 2000 | 2000 | 1995 | 1978 | 1986 | 1989 | 1992 |
| Heating Degree Days (F) | 517. | 359. | 318. | 193. | 87. | 16. | 0. | 2. | 27. | 110. | 342. | 530. | 2501. |
| Cooling Degree Days (F) | 0. | 0. | 4. | 18. | 79. | 163. | 224. | 194. | 134. | 35. | 2. | 0. | 853. |