| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 40.9 | 47.6 | 56.0 | 63.8 | 73.1 | 84.4 | 92.0 | 89.7 | 80.9 | 67.5 | 52.3 | 41.9 | 65.8 |
| Highest Mean Max. Temperature (F) | 47.5 | 59.4 | 67.8 | 72.0 | 83.1 | 90.7 | 97.7 | 95.1 | 86.3 | 75.1 | 65.1 | 51.0 | 97.7 |
| Year Highest Occurred | 1998 | 1995 | 1997 | 1992 | 1997 | 1994 | 1994 | 1995 | 1994 | 1988 | 1995 | 1995 | 1994 |
| Lowest Mean Max. Temperature (F) | 28.9 | 38.6 | 48.8 | 54.6 | 63.4 | 77.4 | 88.5 | 85.1 | 73.7 | 60.8 | 41.7 | 31.8 | 28.9 |
| Year Lowest Occurred | 1984 | 1984 | 1973 | 1975 | 1975 | 1975 | 1993 | 1972 | 1986 | 1984 | 2000 | 1985 | 1984 |
| Mean Temperature (F) | 29.4 | 35.3 | 42.9 | 49.7 | 58.4 | 68.7 | 76.7 | 74.5 | 65.2 | 52.9 | 39.6 | 29.9 | 51.9 |
| Highest Mean Temperature (F) | 37.7 | 44.6 | 50.6 | 57.0 | 65.0 | 74.8 | 82.3 | 79.2 | 69.8 | 60.6 | 48.9 | 37.7 | 82.3 |
| Year Highest Occurred | 2000 | 1995 | 1972 | 1992 | 1997 | 1994 | 1994 | 1994 | 1979 | 1988 | 1999 | 1977 | 1994 |
| Lowest Mean Temperature (F) | 19.2 | 24.4 | 36.1 | 42.7 | 50.4 | 62.9 | 73.4 | 70.4 | 59.2 | 47.3 | 31.5 | 20.3 | 19.2 |
| Year Lowest Occurred | 1984 | 1984 | 1976 | 1975 | 1975 | 1995 | 1993 | 1976 | 1986 | 1982 | 2000 | 1990 | 1984 |
| Mean Min. Temperature (F) | 17.8 | 22.9 | 29.8 | 35.5 | 43.6 | 52.9 | 61.4 | 59.3 | 49.4 | 38.3 | 26.8 | 17.9 | 38.0 |
| Highest Mean Min. Temperature (F) | 28.3 | 30.7 | 36.2 | 41.9 | 48.9 | 58.8 | 66.9 | 64.0 | 55.0 | 46.1 | 36.1 | 25.4 | 66.9 |
| Year Highest Occurred | 2000 | 2000 | 1978 | 1992 | 2000 | 1994 | 1994 | 1994 | 1979 | 1988 | 1999 | 1977 | 1994 |
| Lowest Mean Min. Temperature (F) | 6.7 | 10.2 | 22.9 | 30.4 | 37.5 | 45.5 | 58.2 | 53.6 | 44.8 | 33.5 | 19.4 | 8.0 | 6.7 |
| Year Lowest Occurred | 1989 | 1984 | 1976 | 1999 | 1975 | 1995 | 1993 | 1976 | 1986 | 1982 | 1979 | 1990 | 1989 |
| Mean Precipitation (in.) | 1.38 | 1.25 | 1.91 | 1.82 | 1.58 | 0.67 | 0.89 | 1.14 | 1.05 | 1.66 | 1.50 | 1.21 | 16.06 |
| Highest Precipitation (in.) | 3.19 | 3.68 | 3.52 | 4.99 | 4.05 | 3.13 | 3.41 | 3.79 | 4.26 | 4.40 | 3.55 | 3.25 | 4.99 |
| Year Highest Occurred | 1974 | 1998 | 1973 | 1999 | 1995 | 1998 | 1982 | 1983 | 1982 | 2000 | 1983 | 1972 | 1999 |
| Lowest Precipitation (in.) | 0.22 | 0.30 | 0.08 | 0.27 | 0.00 | 0.00 | 0.00 | 0.09 | 0.00 | 0.04 | 0.35 | 0.09 | 0.00 |
| Year Lowest Occurred | 1972 | 1981 | 1997 | 1977 | 1972 | 1996 | 1972 | 1980 | 1979 | 1995 | 1995 | 1976 | 1972 |
| Heating Degree Days (F) | 1105. | 834. | 685. | 466. | 248. | 54. | 1. | 3. | 86. | 380. | 763. | 1089. | 5714. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 5. | 43. | 164. | 363. | 297. | 91. | 6. | 0. | 0. | 969. |