| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 52.7 | 58.6 | 66.8 | 75.2 | 82.9 | 89.8 | 92.2 | 90.5 | 84.0 | 75.5 | 62.9 | 54.9 | 73.8 |
| Highest Mean Max. Temperature (F) | 61.1 | 68.6 | 74.4 | 82.7 | 91.8 | 97.2 | 98.9 | 96.3 | 93.6 | 82.2 | 72.7 | 60.7 | 98.9 |
| Year Highest Occurred | 1986 | 1976 | 1974 | 1978 | 1996 | 1998 | 1980 | 1985 | 1977 | 1979 | 1999 | 1977 | 1980 |
| Lowest Mean Max. Temperature (F) | 40.7 | 44.1 | 61.1 | 66.5 | 77.1 | 84.5 | 84.3 | 83.4 | 75.1 | 68.4 | 54.3 | 43.9 | 40.7 |
| Year Lowest Occurred | 1979 | 1978 | 1987 | 1997 | 1992 | 1986 | 1976 | 1971 | 1974 | 1984 | 1972 | 1983 | 1979 |
| Mean Temperature (F) | 38.9 | 43.8 | 50.8 | 59.4 | 68.4 | 76.1 | 79.2 | 77.6 | 71.0 | 61.3 | 48.8 | 41.2 | 59.7 |
| Highest Mean Temperature (F) | 45.2 | 51.3 | 56.5 | 64.2 | 76.0 | 82.5 | 84.6 | 82.0 | 77.8 | 65.3 | 56.9 | 45.3 | 84.6 |
| Year Highest Occurred | 1999 | 2000 | 1974 | 1978 | 1996 | 1990 | 1998 | 1999 | 1977 | 1998 | 1999 | 1994 | 1998 |
| Lowest Mean Temperature (F) | 30.3 | 33.9 | 46.1 | 53.5 | 64.6 | 71.0 | 73.6 | 72.5 | 64.2 | 54.4 | 42.4 | 31.6 | 30.3 |
| Year Lowest Occurred | 1979 | 1978 | 1987 | 1973 | 1976 | 1983 | 1976 | 1971 | 1974 | 1976 | 1972 | 1983 | 1979 |
| Mean Min. Temperature (F) | 25.1 | 29.0 | 34.7 | 43.5 | 53.9 | 62.3 | 66.1 | 64.6 | 58.0 | 47.0 | 34.6 | 27.4 | 45.5 |
| Highest Mean Min. Temperature (F) | 30.3 | 34.7 | 39.6 | 48.0 | 60.2 | 67.8 | 71.2 | 68.8 | 62.9 | 52.8 | 41.0 | 32.3 | 71.2 |
| Year Highest Occurred | 1999 | 1992 | 2000 | 2000 | 2000 | 1990 | 1998 | 1999 | 1998 | 2000 | 1999 | 1984 | 1998 |
| Lowest Mean Min. Temperature (F) | 18.9 | 23.8 | 29.8 | 38.6 | 50.0 | 56.6 | 62.7 | 61.7 | 53.1 | 40.0 | 28.2 | 19.2 | 18.9 |
| Year Lowest Occurred | 1977 | 1978 | 1975 | 1983 | 1976 | 1983 | 1985 | 1971 | 1984 | 1976 | 1976 | 1983 | 1977 |
| Mean Precipitation (in.) | 0.66 | 0.79 | 0.71 | 1.48 | 2.74 | 3.22 | 2.62 | 2.23 | 2.65 | 1.73 | 0.86 | 0.79 | 20.48 |
| Highest Precipitation (in.) | 2.75 | 2.50 | 2.55 | 5.88 | 7.42 | 10.16 | 7.76 | 10.11 | 7.30 | 8.72 | 2.56 | 2.56 | 10.16 |
| Year Highest Occurred | 1983 | 1997 | 2000 | 1977 | 1987 | 1986 | 1976 | 1972 | 1995 | 1983 | 1994 | 1991 | 1986 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.45 | 0.00 | 0.07 | 0.18 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1998 | 1999 | 1984 | 1991 | 1976 | 1990 | 1980 | 2000 | 2000 | 1992 | 1999 | 1996 | 1998 |
| Heating Degree Days (F) | 809. | 594. | 442. | 203. | 55. | 4. | 0. | 1. | 29. | 154. | 491. | 741. | 3523. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 33. | 161. | 336. | 439. | 390. | 210. | 37. | 3. | 0. | 1609. |