| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 52.7 | 58.5 | 66.9 | 75.4 | 82.6 | 91.4 | 95.5 | 93.6 | 87.1 | 77.4 | 63.3 | 53.8 | 74.9 |
| Highest Mean Max. Temperature (F) | 65.5 | 68.6 | 75.8 | 83.1 | 92.7 | 97.9 | 102.4 | 102.6 | 93.4 | 85.3 | 73.5 | 60.6 | 102.6 |
| Year Highest Occurred | 1986 | 1976 | 1972 | 1981 | 1974 | 1990 | 1980 | 2000 | 1998 | 1979 | 1999 | 1980 | 2000 |
| Lowest Mean Max. Temperature (F) | 39.7 | 42.9 | 58.7 | 63.2 | 74.2 | 84.8 | 91.6 | 87.5 | 80.7 | 70.8 | 50.9 | 38.9 | 38.9 |
| Year Lowest Occurred | 1979 | 1978 | 1983 | 1997 | 1995 | 1989 | 1988 | 1996 | 1974 | 1976 | 1972 | 1983 | 1983 |
| Mean Temperature (F) | 37.6 | 42.5 | 50.3 | 58.8 | 67.4 | 76.4 | 80.7 | 79.2 | 72.0 | 61.3 | 47.9 | 39.1 | 59.4 |
| Highest Mean Temperature (F) | 46.9 | 49.9 | 57.0 | 65.2 | 74.1 | 81.5 | 85.8 | 86.5 | 78.3 | 65.5 | 55.8 | 44.5 | 86.5 |
| Year Highest Occurred | 1986 | 1976 | 1986 | 1981 | 1996 | 1990 | 1980 | 2000 | 1998 | 1998 | 1999 | 1994 | 2000 |
| Lowest Mean Temperature (F) | 26.3 | 30.6 | 44.6 | 50.5 | 61.0 | 71.8 | 77.6 | 75.1 | 65.4 | 53.9 | 38.8 | 26.2 | 26.2 |
| Year Lowest Occurred | 1979 | 1978 | 1998 | 1997 | 1995 | 1995 | 1975 | 1992 | 1974 | 1976 | 1972 | 1983 | 1983 |
| Mean Min. Temperature (F) | 22.4 | 26.5 | 33.6 | 42.2 | 52.1 | 61.4 | 65.9 | 64.7 | 56.9 | 45.1 | 32.5 | 24.4 | 44.0 |
| Highest Mean Min. Temperature (F) | 28.5 | 32.7 | 39.2 | 47.4 | 57.0 | 65.2 | 69.1 | 70.3 | 63.2 | 51.0 | 38.0 | 29.6 | 70.3 |
| Year Highest Occurred | 1992 | 1992 | 1986 | 1981 | 1996 | 1994 | 1980 | 2000 | 1998 | 2000 | 1999 | 1994 | 2000 |
| Lowest Mean Min. Temperature (F) | 13.0 | 18.4 | 28.1 | 36.6 | 47.0 | 58.1 | 62.3 | 60.9 | 50.1 | 37.1 | 25.7 | 13.5 | 13.0 |
| Year Lowest Occurred | 1979 | 1978 | 1996 | 1983 | 1983 | 1983 | 1976 | 1976 | 1974 | 1976 | 1976 | 1983 | 1979 |
| Mean Precipitation (in.) | 0.53 | 0.62 | 1.52 | 1.58 | 2.83 | 2.97 | 2.77 | 2.38 | 2.08 | 1.35 | 1.01 | 0.66 | 20.30 |
| Highest Precipitation (in.) | 1.59 | 1.59 | 6.15 | 6.57 | 6.77 | 7.49 | 8.56 | 4.93 | 8.16 | 5.90 | 5.19 | 2.98 | 8.56 |
| Year Highest Occurred | 1980 | 1982 | 1973 | 1997 | 1978 | 2000 | 1996 | 1992 | 1996 | 1998 | 1971 | 1991 | 1996 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.52 | 0.06 | 0.05 | 0.35 | 0.05 | 0.00 | 0.00 | 0.02 | 0.00 |
| Year Lowest Occurred | 1998 | 1991 | 1997 | 1996 | 1974 | 1998 | 1980 | 1988 | 1992 | 1975 | 1999 | 1976 | 1998 |
| Heating Degree Days (F) | 851. | 631. | 459. | 228. | 74. | 4. | 0. | 0. | 17. | 154. | 514. | 802. | 3734. |
| Cooling Degree Days (F) | 0. | 0. | 1. | 42. | 148. | 345. | 487. | 438. | 227. | 37. | 1. | 0. | 1726. |