| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 60.6 | 62.6 | 63.8 | 67.6 | 68.9 | 71.3 | 72.0 | 72.7 | 73.7 | 72.0 | 65.9 | 60.9 | 67.7 |
| Highest Mean Max. Temperature (F) | 65.1 | 68.0 | 68.9 | 72.7 | 77.1 | 78.9 | 77.2 | 77.7 | 84.4 | 75.8 | 71.1 | 66.5 | 84.4 |
| Year Highest Occurred | 1976 | 1988 | 1988 | 1987 | 1984 | 1981 | 1983 | 1983 | 1984 | 1983 | 1986 | 1976 | 1984 |
| Lowest Mean Max. Temperature (F) | 56.7 | 57.0 | 59.0 | 61.3 | 64.1 | 65.6 | 66.4 | 69.7 | 69.0 | 67.6 | 60.2 | 54.8 | 54.8 |
| Year Lowest Occurred | 1973 | 1979 | 1991 | 1975 | 1995 | 1991 | 1994 | 1989 | 1986 | 2000 | 1994 | 1971 | 1971 |
| Mean Temperature (F) | 49.7 | 51.9 | 53.4 | 56.2 | 58.5 | 61.1 | 62.4 | 63.0 | 63.0 | 60.1 | 54.1 | 49.5 | 56.9 |
| Highest Mean Temperature (F) | 54.3 | 55.9 | 57.4 | 60.9 | 63.7 | 64.8 | 65.7 | 66.9 | 69.3 | 63.6 | 59.0 | 53.2 | 69.3 |
| Year Highest Occurred | 1986 | 1995 | 1978 | 1992 | 1997 | 1981 | 1992 | 1983 | 1984 | 1983 | 1995 | 1977 | 1984 |
| Lowest Mean Temperature (F) | 45.7 | 47.6 | 49.1 | 50.6 | 54.7 | 57.9 | 59.6 | 60.5 | 59.2 | 55.8 | 49.5 | 44.4 | 44.4 |
| Year Lowest Occurred | 1982 | 1979 | 1991 | 1975 | 1977 | 1991 | 1994 | 1973 | 1986 | 1971 | 1994 | 1990 | 1990 |
| Mean Min. Temperature (F) | 38.7 | 41.1 | 43.0 | 44.7 | 48.0 | 50.8 | 52.7 | 53.2 | 52.3 | 48.2 | 42.3 | 38.1 | 46.1 |
| Highest Mean Min. Temperature (F) | 46.2 | 47.1 | 48.4 | 49.3 | 52.9 | 54.0 | 56.6 | 56.0 | 56.1 | 52.9 | 47.1 | 44.1 | 56.6 |
| Year Highest Occurred | 1995 | 1995 | 1978 | 1992 | 1992 | 1992 | 1992 | 1983 | 1983 | 1987 | 1997 | 1996 | 1992 |
| Lowest Mean Min. Temperature (F) | 33.8 | 34.8 | 37.2 | 39.9 | 44.5 | 48.0 | 50.3 | 50.8 | 49.4 | 42.3 | 38.0 | 30.2 | 30.2 |
| Year Lowest Occurred | 1982 | 1974 | 1977 | 1975 | 1977 | 1980 | 1981 | 1991 | 1986 | 1971 | 1991 | 1990 | 1990 |
| Mean Precipitation (in.) | 4.72 | 4.45 | 3.92 | 1.62 | 0.51 | 0.12 | 0.08 | 0.07 | 0.29 | 1.06 | 3.00 | 3.41 | 23.25 |
| Highest Precipitation (in.) | 11.61 | 15.99 | 11.74 | 5.93 | 2.53 | 0.64 | 1.27 | 1.12 | 1.45 | 3.10 | 8.01 | 10.95 | 15.99 |
| Year Highest Occurred | 1995 | 1998 | 1991 | 1983 | 1996 | 1995 | 1974 | 1976 | 1982 | 2000 | 1983 | 1996 | 1998 |
| Lowest Precipitation (in.) | 0.23 | 0.14 | 0.02 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.01 | 0.03 | 0.00 |
| Year Lowest Occurred | 1984 | 1997 | 1988 | 1977 | 1999 | 1996 | 2000 | 1999 | 1997 | 1995 | 1992 | 1989 | 1999 |
| Heating Degree Days (F) | 477. | 368. | 360. | 272. | 211. | 130. | 101. | 84. | 104. | 165. | 328. | 480. | 3080. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 6. | 9. | 11. | 20. | 21. | 43. | 12. | 1. | 0. | 123. |