| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 61.0 | 62.7 | 63.8 | 67.0 | 68.0 | 70.5 | 71.3 | 72.5 | 74.5 | 73.0 | 66.6 | 61.4 | 67.7 |
| Highest Mean Max. Temperature (F) | 66.2 | 69.3 | 70.0 | 73.1 | 75.7 | 76.3 | 76.5 | 78.2 | 82.1 | 77.6 | 74.1 | 67.7 | 82.1 |
| Year Highest Occurred | 1981 | 1988 | 1997 | 1992 | 1997 | 1981 | 1983 | 1983 | 1984 | 1983 | 1995 | 1989 | 1984 |
| Lowest Mean Max. Temperature (F) | 55.6 | 58.1 | 58.6 | 60.5 | 62.5 | 65.2 | 67.5 | 68.2 | 70.3 | 68.2 | 61.6 | 54.5 | 54.5 |
| Year Lowest Occurred | 1982 | 1998 | 1985 | 1975 | 1977 | 1982 | 1994 | 1982 | 1986 | 1971 | 1985 | 1971 | 1971 |
| Mean Temperature (F) | 51.2 | 53.0 | 54.2 | 56.6 | 59.1 | 61.7 | 63.2 | 64.1 | 64.5 | 61.6 | 55.5 | 50.7 | 58.0 |
| Highest Mean Temperature (F) | 55.8 | 56.7 | 58.6 | 61.2 | 65.0 | 64.5 | 66.7 | 68.7 | 70.4 | 66.4 | 60.9 | 54.7 | 70.4 |
| Year Highest Occurred | 1981 | 1992 | 1978 | 1992 | 1997 | 1981 | 1983 | 1983 | 1983 | 1983 | 1995 | 1980 | 1983 |
| Lowest Mean Temperature (F) | 45.3 | 48.4 | 49.4 | 51.5 | 54.4 | 57.8 | 60.3 | 61.7 | 61.3 | 55.7 | 51.0 | 45.9 | 45.3 |
| Year Lowest Occurred | 1982 | 1989 | 1977 | 1975 | 1977 | 1982 | 1971 | 1982 | 1986 | 1971 | 1994 | 1971 | 1982 |
| Mean Min. Temperature (F) | 41.3 | 43.3 | 44.6 | 46.1 | 50.1 | 52.8 | 55.0 | 55.7 | 54.4 | 50.1 | 44.3 | 40.0 | 48.1 |
| Highest Mean Min. Temperature (F) | 48.2 | 48.0 | 51.0 | 49.2 | 54.2 | 55.8 | 58.3 | 59.2 | 59.9 | 55.2 | 49.6 | 46.1 | 59.9 |
| Year Highest Occurred | 1995 | 1995 | 1978 | 1992 | 1997 | 1983 | 1992 | 1983 | 1983 | 1983 | 1997 | 1977 | 1983 |
| Lowest Mean Min. Temperature (F) | 34.9 | 38.4 | 38.2 | 42.2 | 46.2 | 50.3 | 51.5 | 52.9 | 51.5 | 43.2 | 39.8 | 33.8 | 33.8 |
| Year Lowest Occurred | 1982 | 1989 | 1977 | 1971 | 1977 | 1982 | 1977 | 1994 | 1982 | 1971 | 1971 | 1990 | 1990 |
| Mean Precipitation (in.) | 2.62 | 2.48 | 2.36 | 0.93 | 0.23 | 0.09 | 0.04 | 0.06 | 0.21 | 0.62 | 1.51 | 1.76 | 12.91 |
| Highest Precipitation (in.) | 7.81 | 9.96 | 5.99 | 3.40 | 1.38 | 0.55 | 0.56 | 0.70 | 1.22 | 2.82 | 4.77 | 5.01 | 9.96 |
| Year Highest Occurred | 1995 | 1998 | 1991 | 1978 | 1990 | 1995 | 1980 | 1976 | 1976 | 2000 | 1982 | 1973 | 1998 |
| Lowest Precipitation (in.) | 0.10 | 0.20 | 0.01 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.05 | 0.00 |
| Year Lowest Occurred | 1984 | 1997 | 1972 | 1973 | 1992 | 1991 | 2000 | 2000 | 1999 | 1995 | 1980 | 1989 | 1992 |
| Heating Degree Days (F) | 431. | 337. | 326. | 258. | 202. | 119. | 92. | 63. | 75. | 131. | 292. | 444. | 2770. |
| Cooling Degree Days (F) | 0. | 0. | 6. | 12. | 18. | 18. | 34. | 35. | 58. | 25. | 4. | 0. | 210. |