| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 63.9 | 64.8 | 64.8 | 67.6 | 68.6 | 71.4 | 73.5 | 74.2 | 74.9 | 74.0 | 69.2 | 64.9 | 69.3 |
| Highest Mean Max. Temperature (F) | 70.9 | 71.0 | 70.9 | 74.0 | 75.2 | 76.9 | 79.5 | 79.4 | 85.7 | 79.5 | 76.0 | 71.5 | 85.7 |
| Year Highest Occurred | 1976 | 1988 | 1988 | 1996 | 1997 | 1981 | 1985 | 1984 | 1984 | 1983 | 1976 | 1980 | 1984 |
| Lowest Mean Max. Temperature (F) | 58.6 | 60.1 | 59.1 | 60.8 | 63.7 | 67.0 | 69.9 | 70.8 | 70.7 | 68.6 | 63.8 | 58.0 | 58.0 |
| Year Lowest Occurred | 1973 | 1989 | 1973 | 1975 | 1971 | 1999 | 1994 | 1999 | 1999 | 2000 | 1994 | 1971 | 1971 |
| Mean Temperature (F) | 51.6 | 53.1 | 53.8 | 55.5 | 57.8 | 60.9 | 63.5 | 64.2 | 63.9 | 61.1 | 55.5 | 51.6 | 57.7 |
| Highest Mean Temperature (F) | 56.6 | 57.4 | 58.7 | 60.3 | 62.6 | 64.4 | 68.7 | 68.8 | 71.9 | 66.2 | 60.4 | 57.4 | 71.9 |
| Year Highest Occurred | 1986 | 1992 | 1998 | 1996 | 1997 | 1981 | 1985 | 1983 | 1984 | 1983 | 1977 | 1977 | 1984 |
| Lowest Mean Temperature (F) | 47.5 | 49.0 | 48.8 | 49.8 | 54.0 | 57.6 | 60.9 | 61.4 | 60.8 | 56.2 | 50.1 | 45.9 | 45.9 |
| Year Lowest Occurred | 1973 | 1979 | 1973 | 1975 | 1991 | 1999 | 1987 | 1999 | 1986 | 1971 | 1994 | 1971 | 1971 |
| Mean Min. Temperature (F) | 39.3 | 41.4 | 42.7 | 43.4 | 46.9 | 50.4 | 53.5 | 54.2 | 52.9 | 48.2 | 41.8 | 38.2 | 46.1 |
| Highest Mean Min. Temperature (F) | 45.8 | 46.8 | 48.9 | 47.7 | 52.1 | 53.2 | 57.8 | 58.4 | 59.9 | 53.3 | 46.5 | 46.9 | 59.9 |
| Year Highest Occurred | 1995 | 1996 | 1978 | 1990 | 1992 | 1983 | 1985 | 1983 | 1983 | 1987 | 1997 | 1977 | 1983 |
| Lowest Mean Min. Temperature (F) | 34.5 | 36.3 | 35.5 | 38.6 | 43.6 | 47.8 | 50.8 | 52.0 | 50.0 | 41.1 | 36.3 | 32.2 | 32.2 |
| Year Lowest Occurred | 1987 | 1971 | 1977 | 1971 | 1991 | 1994 | 1987 | 1999 | 1986 | 1971 | 1994 | 1978 | 1978 |
| Mean Precipitation (in.) | 2.64 | 3.23 | 2.94 | 0.91 | 0.32 | 0.05 | 0.03 | 0.05 | 0.31 | 0.45 | 1.24 | 1.84 | 14.01 |
| Highest Precipitation (in.) | 11.78 | 11.57 | 9.41 | 2.96 | 3.17 | 0.86 | 0.40 | 0.86 | 3.05 | 2.00 | 4.37 | 4.64 | 11.78 |
| Year Highest Occurred | 1995 | 1998 | 1991 | 2000 | 1998 | 1995 | 1992 | 1976 | 1976 | 1987 | 1997 | 1974 | 1995 |
| Lowest Precipitation (in.) | 0.00 | 0.06 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.02 | 0.00 |
| Year Lowest Occurred | 1976 | 1977 | 1997 | 1997 | 1999 | 1997 | 2000 | 2000 | 2000 | 1999 | 2000 | 1989 | 1976 |
| Heating Degree Days (F) | 419. | 337. | 333. | 291. | 230. | 135. | 68. | 49. | 70. | 141. | 288. | 422. | 2783. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 4. | 5. | 10. | 23. | 25. | 33. | 18. | 3. | 0. | 121. |