| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 51.2 | 56.6 | 63.5 | 71.1 | 78.9 | 87.9 | 89.9 | 87.8 | 82.2 | 72.7 | 60.3 | 52.2 | 71.2 |
| Highest Mean Max. Temperature (F) | 60.7 | 65.0 | 71.3 | 79.1 | 86.3 | 95.2 | 96.6 | 91.6 | 89.3 | 79.6 | 70.4 | 60.4 | 96.6 |
| Year Highest Occurred | 1986 | 2000 | 1972 | 1981 | 2000 | 1990 | 1980 | 2000 | 2000 | 1979 | 1999 | 1980 | 1980 |
| Lowest Mean Max. Temperature (F) | 42.0 | 50.9 | 57.5 | 62.5 | 75.2 | 84.1 | 84.2 | 84.0 | 76.6 | 65.3 | 50.9 | 46.3 | 42.0 |
| Year Lowest Occurred | 1979 | 1973 | 1973 | 1973 | 1987 | 1979 | 1991 | 1971 | 1974 | 1984 | 1972 | 1982 | 1979 |
| Mean Temperature (F) | 35.6 | 39.7 | 45.9 | 52.9 | 61.4 | 70.2 | 73.7 | 71.9 | 65.4 | 55.1 | 43.7 | 36.4 | 54.3 |
| Highest Mean Temperature (F) | 41.8 | 46.0 | 50.5 | 58.7 | 68.9 | 76.3 | 78.3 | 75.5 | 69.1 | 58.4 | 49.2 | 43.4 | 78.3 |
| Year Highest Occurred | 1986 | 1995 | 1974 | 1981 | 1996 | 1990 | 1980 | 1995 | 1998 | 1979 | 1999 | 1980 | 1980 |
| Lowest Mean Temperature (F) | 27.8 | 34.9 | 40.8 | 44.5 | 57.5 | 66.9 | 70.5 | 69.2 | 61.5 | 49.6 | 36.4 | 31.3 | 27.8 |
| Year Lowest Occurred | 1979 | 1975 | 1973 | 1973 | 1983 | 1973 | 1991 | 1974 | 1974 | 1976 | 1972 | 1983 | 1979 |
| Mean Min. Temperature (F) | 19.9 | 22.7 | 28.3 | 34.7 | 43.9 | 52.4 | 57.4 | 56.0 | 48.5 | 37.4 | 27.0 | 20.5 | 37.4 |
| Highest Mean Min. Temperature (F) | 25.2 | 28.1 | 31.9 | 39.5 | 51.5 | 57.5 | 61.2 | 59.6 | 53.8 | 41.0 | 31.7 | 29.0 | 61.2 |
| Year Highest Occurred | 1999 | 1995 | 1986 | 1986 | 1996 | 1990 | 1996 | 1995 | 1997 | 1974 | 1978 | 1977 | 1996 |
| Lowest Mean Min. Temperature (F) | 13.7 | 17.6 | 23.0 | 26.5 | 38.2 | 47.3 | 55.1 | 52.3 | 45.3 | 31.1 | 21.3 | 15.2 | 13.7 |
| Year Lowest Occurred | 1979 | 1975 | 1977 | 1973 | 1971 | 1973 | 1972 | 1974 | 1993 | 1976 | 1979 | 1983 | 1979 |
| Mean Precipitation (in.) | 0.63 | 0.49 | 0.72 | 0.91 | 1.37 | 1.61 | 2.69 | 2.77 | 1.93 | 1.29 | 0.82 | 0.79 | 16.02 |
| Highest Precipitation (in.) | 1.92 | 2.02 | 2.34 | 3.87 | 4.16 | 6.71 | 6.85 | 6.29 | 5.03 | 4.75 | 3.95 | 4.10 | 6.85 |
| Year Highest Occurred | 1987 | 1987 | 1994 | 1999 | 1994 | 1995 | 1973 | 1987 | 1980 | 1984 | 1986 | 1997 | 1973 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.07 | 0.54 | 0.69 | 0.04 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 2000 | 2000 | 1972 | 1996 | 1998 | 1980 | 1980 | 2000 | 2000 | 1987 | 1999 | 1981 | 2000 |
| Heating Degree Days (F) | 913. | 710. | 592. | 368. | 159. | 19. | 1. | 4. | 62. | 312. | 642. | 888. | 4670. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 5. | 47. | 173. | 268. | 217. | 73. | 3. | 0. | 0. | 786. |