| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 61.0 | 62.9 | 64.6 | 68.8 | 71.0 | 74.0 | 74.8 | 75.5 | 75.6 | 72.5 | 65.3 | 60.8 | 68.9 |
| Highest Mean Max. Temperature (F) | 65.2 | 69.6 | 71.5 | 72.8 | 80.0 | 81.4 | 79.5 | 79.8 | 84.8 | 76.3 | 72.5 | 67.3 | 84.8 |
| Year Highest Occurred | 1986 | 1988 | 1988 | 1992 | 1984 | 1981 | 1983 | 1983 | 1984 | 1976 | 1976 | 1989 | 1984 |
| Lowest Mean Max. Temperature (F) | 56.4 | 57.3 | 58.4 | 62.2 | 65.2 | 67.3 | 68.0 | 70.9 | 69.1 | 66.1 | 59.6 | 54.6 | 54.6 |
| Year Lowest Occurred | 1979 | 1979 | 1991 | 1975 | 1995 | 1999 | 1994 | 1989 | 1999 | 2000 | 1994 | 1971 | 1971 |
| Mean Temperature (F) | 50.6 | 52.6 | 54.0 | 56.6 | 59.1 | 62.2 | 63.7 | 64.3 | 63.9 | 60.4 | 54.4 | 50.2 | 57.7 |
| Highest Mean Temperature (F) | 55.4 | 56.2 | 58.2 | 61.1 | 64.2 | 66.0 | 66.7 | 67.5 | 69.1 | 63.4 | 58.9 | 53.9 | 69.1 |
| Year Highest Occurred | 1986 | 1995 | 1978 | 1992 | 1997 | 1981 | 1985 | 1983 | 1984 | 1987 | 1976 | 1977 | 1984 |
| Lowest Mean Temperature (F) | 47.2 | 48.5 | 50.0 | 50.2 | 55.9 | 58.4 | 60.9 | 62.0 | 60.6 | 57.3 | 49.6 | 45.1 | 45.1 |
| Year Lowest Occurred | 1972 | 1979 | 1991 | 1975 | 1974 | 1999 | 1994 | 1989 | 1986 | 1971 | 1994 | 1971 | 1971 |
| Mean Min. Temperature (F) | 40.2 | 42.3 | 43.3 | 44.4 | 47.2 | 50.4 | 52.6 | 53.0 | 52.1 | 48.3 | 43.4 | 39.6 | 46.4 |
| Highest Mean Min. Temperature (F) | 47.3 | 47.0 | 48.2 | 49.4 | 52.5 | 54.1 | 56.9 | 56.1 | 56.0 | 52.5 | 48.9 | 45.4 | 56.9 |
| Year Highest Occurred | 1995 | 1996 | 1978 | 1992 | 1992 | 1998 | 1992 | 1997 | 1983 | 1987 | 1997 | 1996 | 1992 |
| Lowest Mean Min. Temperature (F) | 34.7 | 36.9 | 37.3 | 38.2 | 42.6 | 46.6 | 48.8 | 48.0 | 49.2 | 41.5 | 38.6 | 32.7 | 32.7 |
| Year Lowest Occurred | 1976 | 1974 | 1976 | 1975 | 1974 | 1976 | 1975 | 1981 | 1973 | 1971 | 1975 | 1990 | 1990 |
| Mean Precipitation (in.) | 6.49 | 6.15 | 4.78 | 1.97 | 0.70 | 0.18 | 0.14 | 0.11 | 0.41 | 1.44 | 4.08 | 4.22 | 30.67 |
| Highest Precipitation (in.) | 17.56 | 18.63 | 15.16 | 6.05 | 4.11 | 1.54 | 2.89 | 1.25 | 2.00 | 4.84 | 11.06 | 13.74 | 18.63 |
| Year Highest Occurred | 1995 | 1998 | 1983 | 1982 | 1990 | 1995 | 1974 | 1976 | 1983 | 2000 | 1984 | 1996 | 1998 |
| Lowest Precipitation (in.) | 0.32 | 0.29 | 0.05 | 0.05 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.05 | 0.05 | 0.00 |
| Year Lowest Occurred | 1976 | 1997 | 1988 | 1973 | 1992 | 1996 | 2000 | 1998 | 1996 | 1995 | 1986 | 1989 | 1992 |
| Heating Degree Days (F) | 446. | 347. | 343. | 258. | 194. | 101. | 72. | 58. | 85. | 153. | 320. | 459. | 2836. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 5. | 11. | 18. | 31. | 35. | 50. | 11. | 1. | 0. | 162. |