| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 50.6 | 55.6 | 63.5 | 71.2 | 79.0 | 87.6 | 91.2 | 89.4 | 82.3 | 73.4 | 60.2 | 51.4 | 71.3 |
| Highest Mean Max. Temperature (F) | 58.8 | 63.6 | 71.8 | 77.8 | 86.9 | 96.9 | 97.0 | 95.1 | 89.3 | 79.3 | 68.6 | 60.1 | 97.0 |
| Year Highest Occurred | 1986 | 2000 | 1972 | 1972 | 1974 | 1990 | 1980 | 2000 | 1998 | 1979 | 1999 | 1980 | 1980 |
| Lowest Mean Max. Temperature (F) | 38.9 | 44.0 | 58.2 | 61.6 | 74.6 | 81.3 | 87.2 | 84.5 | 76.3 | 68.2 | 50.9 | 40.7 | 38.9 |
| Year Lowest Occurred | 1979 | 1978 | 1998 | 1997 | 1999 | 1989 | 1975 | 1981 | 1974 | 1984 | 1972 | 1983 | 1979 |
| Mean Temperature (F) | 34.8 | 39.3 | 46.3 | 54.3 | 63.1 | 72.2 | 76.4 | 75.0 | 67.2 | 56.8 | 44.2 | 35.7 | 55.4 |
| Highest Mean Temperature (F) | 40.9 | 45.5 | 51.4 | 61.3 | 69.1 | 78.2 | 81.3 | 79.2 | 72.9 | 59.9 | 50.0 | 42.7 | 81.3 |
| Year Highest Occurred | 1986 | 2000 | 1974 | 1981 | 1996 | 1990 | 1980 | 2000 | 1998 | 1979 | 1999 | 1980 | 1980 |
| Lowest Mean Temperature (F) | 25.5 | 30.8 | 42.6 | 47.5 | 59.2 | 67.5 | 72.8 | 71.2 | 62.0 | 51.9 | 36.9 | 25.8 | 25.5 |
| Year Lowest Occurred | 1979 | 1978 | 1996 | 1997 | 1983 | 1989 | 1975 | 1971 | 1974 | 1976 | 1972 | 1983 | 1979 |
| Mean Min. Temperature (F) | 18.9 | 22.9 | 29.0 | 37.4 | 47.2 | 56.7 | 61.5 | 60.5 | 52.1 | 40.1 | 28.1 | 19.9 | 39.5 |
| Highest Mean Min. Temperature (F) | 24.2 | 28.4 | 33.1 | 45.5 | 51.7 | 60.9 | 65.6 | 63.2 | 56.5 | 43.8 | 32.6 | 25.5 | 65.6 |
| Year Highest Occurred | 1995 | 1987 | 1986 | 1981 | 1996 | 1980 | 1980 | 2000 | 1998 | 2000 | 1981 | 1994 | 1980 |
| Lowest Mean Min. Temperature (F) | 12.1 | 17.6 | 24.4 | 31.8 | 42.7 | 53.0 | 58.5 | 57.3 | 47.8 | 35.4 | 22.8 | 10.9 | 10.9 |
| Year Lowest Occurred | 1979 | 1978 | 1996 | 1973 | 1983 | 1992 | 1975 | 1971 | 1974 | 1976 | 1972 | 1983 | 1983 |
| Mean Precipitation (in.) | 0.40 | 0.39 | 0.79 | 1.06 | 2.50 | 2.65 | 2.48 | 3.22 | 1.88 | 1.23 | 0.66 | 0.42 | 17.68 |
| Highest Precipitation (in.) | 1.54 | 1.78 | 3.31 | 4.38 | 7.44 | 7.00 | 8.32 | 9.74 | 5.41 | 4.89 | 3.63 | 1.78 | 9.74 |
| Year Highest Occurred | 1983 | 1987 | 2000 | 1997 | 1999 | 1993 | 1982 | 1981 | 1976 | 2000 | 1978 | 1991 | 1981 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.15 | 0.00 | 0.29 | 0.35 | 0.03 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1998 | 2000 | 1997 | 1996 | 1998 | 1990 | 1987 | 2000 | 2000 | 1975 | 1999 | 1985 | 1998 |
| Heating Degree Days (F) | 939. | 720. | 581. | 333. | 118. | 15. | 0. | 2. | 52. | 260. | 626. | 910. | 4556. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 11. | 59. | 230. | 352. | 310. | 118. | 5. | 0. | 0. | 1085. |