| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 58.1 | 61.4 | 62.5 | 64.5 | 65.4 | 67.7 | 68.2 | 69.2 | 71.3 | 70.4 | 64.1 | 58.6 | 65.1 |
| Highest Mean Max. Temperature (F) | 62.2 | 66.3 | 67.4 | 69.9 | 71.4 | 73.5 | 74.8 | 76.6 | 83.2 | 74.4 | 68.4 | 62.6 | 83.2 |
| Year Highest Occurred | 1976 | 1988 | 1988 | 1996 | 1984 | 1993 | 1984 | 1983 | 1984 | 1983 | 1995 | 1976 | 1984 |
| Lowest Mean Max. Temperature (F) | 55.3 | 56.2 | 56.7 | 58.6 | 59.5 | 62.6 | 63.5 | 64.6 | 66.5 | 65.1 | 57.0 | 53.5 | 53.5 |
| Year Lowest Occurred | 1982 | 1989 | 1999 | 1975 | 1999 | 1999 | 1994 | 1980 | 1989 | 2000 | 1994 | 1972 | 1972 |
| Mean Temperature (F) | 52.3 | 55.0 | 55.9 | 57.3 | 58.4 | 60.5 | 61.3 | 62.4 | 63.7 | 62.5 | 57.5 | 52.7 | 58.3 |
| Highest Mean Temperature (F) | 56.3 | 58.5 | 59.9 | 61.7 | 62.6 | 64.7 | 65.2 | 67.1 | 70.4 | 65.9 | 61.3 | 56.3 | 70.4 |
| Year Highest Occurred | 1986 | 1986 | 1978 | 1992 | 1997 | 1993 | 1984 | 1983 | 1984 | 1992 | 1976 | 1979 | 1984 |
| Lowest Mean Temperature (F) | 49.3 | 49.6 | 51.2 | 53.0 | 53.7 | 56.4 | 58.3 | 58.9 | 60.5 | 59.0 | 51.3 | 48.2 | 48.2 |
| Year Lowest Occurred | 1972 | 1989 | 1999 | 1975 | 1999 | 1999 | 2000 | 1973 | 1975 | 1971 | 1994 | 1972 | 1972 |
| Mean Min. Temperature (F) | 46.4 | 48.5 | 49.2 | 50.1 | 51.4 | 53.2 | 54.4 | 55.6 | 56.1 | 54.6 | 50.8 | 46.7 | 51.4 |
| Highest Mean Min. Temperature (F) | 51.5 | 53.1 | 53.9 | 53.9 | 55.0 | 56.4 | 58.0 | 58.1 | 59.1 | 57.6 | 54.3 | 50.8 | 59.1 |
| Year Highest Occurred | 1986 | 1986 | 1978 | 1992 | 1992 | 1986 | 1995 | 1990 | 1979 | 1992 | 1976 | 1977 | 1979 |
| Lowest Mean Min. Temperature (F) | 43.3 | 43.1 | 45.6 | 46.8 | 47.9 | 50.2 | 51.9 | 52.3 | 53.9 | 51.0 | 45.6 | 41.2 | 41.2 |
| Year Lowest Occurred | 1972 | 1989 | 1999 | 1984 | 1999 | 1999 | 1981 | 1973 | 1988 | 1971 | 1994 | 1990 | 1990 |
| Mean Precipitation (in.) | 4.72 | 4.15 | 3.40 | 1.25 | 0.54 | 0.13 | 0.04 | 0.09 | 0.28 | 1.19 | 3.31 | 3.18 | 22.28 |
| Highest Precipitation (in.) | 12.08 | 14.89 | 9.04 | 4.21 | 3.92 | 0.70 | 0.73 | 0.78 | 1.32 | 5.41 | 10.49 | 8.13 | 14.89 |
| Year Highest Occurred | 1998 | 1998 | 1983 | 1978 | 1998 | 1988 | 1974 | 1976 | 1986 | 1972 | 1994 | 1995 | 1998 |
| Lowest Precipitation (in.) | 0.31 | 0.24 | 0.07 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.08 | 0.00 | 0.00 |
| Year Lowest Occurred | 1976 | 1995 | 1988 | 1973 | 1992 | 1996 | 1999 | 1996 | 1995 | 1980 | 1995 | 1989 | 1992 |
| Heating Degree Days (F) | 396. | 283. | 271. | 233. | 214. | 150. | 133. | 107. | 95. | 100. | 232. | 383. | 2597. |
| Cooling Degree Days (F) | 0. | 2. | 3. | 7. | 9. | 14. | 19. | 26. | 56. | 22. | 5. | 0. | 163. |