| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 47.9 | 52.7 | 60.3 | 68.1 | 76.6 | 86.3 | 90.0 | 87.7 | 80.3 | 70.4 | 57.5 | 48.6 | 68.9 |
| Highest Mean Max. Temperature (F) | 59.5 | 62.2 | 67.8 | 74.7 | 84.8 | 94.5 | 97.6 | 95.6 | 88.8 | 76.0 | 65.6 | 56.9 | 97.6 |
| Year Highest Occurred | 1986 | 2000 | 1972 | 1981 | 1974 | 1990 | 1980 | 2000 | 2000 | 1975 | 1999 | 1980 | 1980 |
| Lowest Mean Max. Temperature (F) | 35.8 | 39.8 | 53.0 | 57.6 | 70.5 | 78.2 | 85.3 | 83.5 | 73.3 | 64.1 | 46.8 | 36.6 | 35.8 |
| Year Lowest Occurred | 1979 | 1978 | 1998 | 1997 | 1995 | 1989 | 1972 | 1996 | 1974 | 1984 | 1972 | 1983 | 1979 |
| Mean Temperature (F) | 33.5 | 38.0 | 45.0 | 53.2 | 62.6 | 72.2 | 76.4 | 74.6 | 66.7 | 55.6 | 42.9 | 34.5 | 54.6 |
| Highest Mean Temperature (F) | 41.1 | 46.0 | 51.1 | 59.7 | 68.3 | 77.8 | 82.3 | 80.5 | 71.8 | 58.3 | 48.6 | 41.5 | 82.3 |
| Year Highest Occurred | 1986 | 2000 | 1986 | 1981 | 2000 | 1990 | 1980 | 2000 | 1998 | 1979 | 1999 | 1980 | 1980 |
| Lowest Mean Temperature (F) | 24.0 | 28.6 | 40.1 | 45.6 | 57.9 | 66.6 | 73.5 | 71.5 | 61.0 | 50.4 | 35.3 | 24.3 | 24.0 |
| Year Lowest Occurred | 1979 | 1978 | 1998 | 1997 | 1983 | 1989 | 1972 | 1992 | 1974 | 1976 | 1972 | 1983 | 1979 |
| Mean Min. Temperature (F) | 19.0 | 23.3 | 29.7 | 38.2 | 48.6 | 58.1 | 62.8 | 61.5 | 53.1 | 40.8 | 28.2 | 20.4 | 40.3 |
| Highest Mean Min. Temperature (F) | 23.6 | 29.8 | 34.9 | 44.6 | 53.6 | 61.8 | 66.9 | 65.3 | 57.5 | 45.0 | 33.9 | 26.1 | 66.9 |
| Year Highest Occurred | 2000 | 2000 | 1986 | 1981 | 1977 | 1981 | 1980 | 2000 | 1998 | 1998 | 1981 | 1980 | 1980 |
| Lowest Mean Min. Temperature (F) | 12.1 | 17.2 | 24.6 | 32.8 | 42.9 | 53.9 | 60.2 | 58.2 | 48.2 | 36.6 | 22.4 | 11.9 | 11.9 |
| Year Lowest Occurred | 1979 | 1989 | 1996 | 1983 | 1983 | 1983 | 1989 | 1992 | 1987 | 1993 | 1992 | 1983 | 1983 |
| Mean Precipitation (in.) | 0.52 | 0.40 | 1.08 | 1.35 | 2.72 | 2.27 | 3.11 | 2.99 | 1.56 | 1.32 | 0.71 | 0.54 | 18.57 |
| Highest Precipitation (in.) | 1.73 | 1.77 | 3.71 | 4.52 | 5.69 | 7.00 | 8.92 | 9.77 | 8.38 | 5.66 | 3.19 | 2.23 | 9.77 |
| Year Highest Occurred | 1983 | 1978 | 2000 | 1997 | 1991 | 1993 | 1982 | 1981 | 1985 | 1998 | 1971 | 1997 | 1981 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.01 | 0.20 | 0.01 | 0.27 | 0.08 | 0.00 | 0.03 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1986 | 1994 | 1972 | 1996 | 1974 | 1990 | 1987 | 2000 | 2000 | 1975 | 1999 | 1985 | 1986 |
| Heating Degree Days (F) | 979. | 756. | 619. | 366. | 136. | 19. | 1. | 3. | 63. | 295. | 665. | 946. | 4848. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 11. | 60. | 235. | 353. | 301. | 112. | 4. | 0. | 0. | 1076. |