| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 60.3 | 62.3 | 64.6 | 71.2 | 79.5 | 88.5 | 94.2 | 93.2 | 87.0 | 77.5 | 66.1 | 60.8 | 75.4 |
| Highest Mean Max. Temperature (F) | 65.9 | 70.6 | 74.4 | 81.0 | 85.8 | 94.7 | 97.7 | 96.8 | 91.8 | 84.8 | 74.4 | 68.1 | 97.7 |
| Year Highest Occurred | 1986 | 1991 | 1972 | 1987 | 1992 | 1981 | 1981 | 1986 | 1975 | 1999 | 1995 | 1980 | 1981 |
| Lowest Mean Max. Temperature (F) | 53.9 | 55.0 | 56.1 | 61.9 | 67.1 | 80.2 | 89.3 | 85.8 | 79.5 | 71.9 | 59.8 | 53.8 | 53.8 |
| Year Lowest Occurred | 1979 | 1998 | 1973 | 1983 | 1998 | 1998 | 1987 | 1976 | 1985 | 1984 | 1994 | 1984 | 1984 |
| Mean Temperature (F) | 46.2 | 48.3 | 50.4 | 54.7 | 61.6 | 69.2 | 74.7 | 73.6 | 68.6 | 59.9 | 50.2 | 45.8 | 58.6 |
| Highest Mean Temperature (F) | 51.2 | 53.4 | 56.0 | 61.1 | 68.3 | 74.4 | 78.4 | 77.9 | 73.0 | 65.2 | 56.9 | 50.2 | 78.4 |
| Year Highest Occurred | 1986 | 1995 | 1972 | 1987 | 1992 | 1981 | 1988 | 1986 | 1991 | 1991 | 1995 | 1980 | 1988 |
| Lowest Mean Temperature (F) | 42.2 | 44.2 | 44.8 | 47.7 | 54.2 | 64.0 | 67.9 | 65.8 | 62.8 | 55.2 | 45.1 | 40.2 | 40.2 |
| Year Lowest Occurred | 1979 | 1979 | 1973 | 1975 | 1977 | 1998 | 1983 | 1976 | 1986 | 1984 | 1994 | 1978 | 1978 |
| Mean Min. Temperature (F) | 32.0 | 34.3 | 36.2 | 38.2 | 43.6 | 49.8 | 55.1 | 54.0 | 50.1 | 42.3 | 34.3 | 30.8 | 41.7 |
| Highest Mean Min. Temperature (F) | 39.6 | 39.6 | 41.0 | 43.2 | 50.7 | 54.6 | 59.6 | 59.0 | 54.3 | 48.9 | 40.1 | 36.8 | 59.6 |
| Year Highest Occurred | 1995 | 1992 | 1993 | 1989 | 1992 | 2000 | 1996 | 1986 | 1997 | 1987 | 1997 | 1996 | 1996 |
| Lowest Mean Min. Temperature (F) | 24.6 | 27.3 | 28.1 | 31.8 | 38.9 | 45.0 | 45.6 | 45.8 | 45.1 | 36.6 | 30.1 | 23.9 | 23.9 |
| Year Lowest Occurred | 1976 | 1974 | 1977 | 1984 | 1977 | 1983 | 1983 | 1976 | 1986 | 1971 | 1978 | 1978 | 1978 |
| Mean Precipitation (in.) | 1.43 | 1.75 | 1.71 | 0.43 | 0.26 | 0.05 | 0.07 | 0.10 | 0.33 | 0.30 | 0.66 | 1.01 | 8.10 |
| Highest Precipitation (in.) | 5.94 | 8.48 | 7.41 | 2.15 | 2.00 | 0.92 | 1.77 | 2.06 | 3.10 | 1.63 | 1.99 | 2.59 | 8.48 |
| Year Highest Occurred | 1995 | 1998 | 1991 | 1982 | 1998 | 1987 | 1992 | 1983 | 1976 | 1987 | 1978 | 1997 | 1998 |
| Lowest Precipitation (in.) | 0.00 | 0.03 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1976 | 1977 | 1988 | 1997 | 2000 | 1999 | 2000 | 2000 | 1996 | 1999 | 2000 | 2000 | 1976 |
| Heating Degree Days (F) | 585. | 468. | 455. | 324. | 168. | 35. | 4. | 5. | 37. | 199. | 445. | 596. | 3321. |
| Cooling Degree Days (F) | 0. | 0. | 2. | 15. | 61. | 158. | 303. | 271. | 144. | 41. | 1. | 0. | 996. |