| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 53.4 | 59.1 | 67.2 | 75.5 | 83.9 | 91.2 | 92.7 | 90.4 | 84.0 | 75.7 | 63.2 | 54.9 | 74.3 |
| Highest Mean Max. Temperature (F) | 61.3 | 68.9 | 74.3 | 81.7 | 93.5 | 101.3 | 100.5 | 96.6 | 92.6 | 81.0 | 72.8 | 60.9 | 101.3 |
| Year Highest Occurred | 1986 | 2000 | 1972 | 1978 | 1996 | 1990 | 1998 | 1999 | 2000 | 1979 | 1999 | 1996 | 1990 |
| Lowest Mean Max. Temperature (F) | 42.6 | 45.2 | 62.6 | 67.8 | 79.4 | 86.4 | 84.4 | 81.8 | 72.9 | 67.8 | 53.2 | 43.7 | 42.6 |
| Year Lowest Occurred | 1979 | 1978 | 1987 | 1973 | 1992 | 1986 | 1975 | 1971 | 1974 | 1976 | 1972 | 1983 | 1979 |
| Mean Temperature (F) | 38.6 | 43.2 | 50.2 | 58.8 | 68.1 | 76.2 | 78.6 | 76.8 | 70.3 | 60.3 | 48.1 | 40.2 | 59.1 |
| Highest Mean Temperature (F) | 44.0 | 49.7 | 56.2 | 63.6 | 75.4 | 82.7 | 83.6 | 80.7 | 76.1 | 63.7 | 53.9 | 44.8 | 83.6 |
| Year Highest Occurred | 1999 | 2000 | 1974 | 1978 | 1996 | 1990 | 1998 | 1999 | 1998 | 1998 | 1999 | 1994 | 1998 |
| Lowest Mean Temperature (F) | 30.8 | 34.2 | 46.3 | 52.8 | 64.4 | 72.9 | 74.1 | 71.9 | 62.7 | 52.9 | 41.1 | 31.3 | 30.8 |
| Year Lowest Occurred | 1979 | 1978 | 1987 | 1973 | 1976 | 1979 | 1975 | 1971 | 1974 | 1976 | 1972 | 1983 | 1979 |
| Mean Min. Temperature (F) | 23.7 | 27.2 | 33.1 | 42.0 | 52.3 | 61.1 | 64.5 | 63.1 | 56.5 | 44.8 | 32.9 | 25.4 | 43.9 |
| Highest Mean Min. Temperature (F) | 27.5 | 32.1 | 38.4 | 47.1 | 57.3 | 64.7 | 66.7 | 65.6 | 60.5 | 49.8 | 38.1 | 31.1 | 66.7 |
| Year Highest Occurred | 1999 | 1992 | 1974 | 1981 | 1996 | 1980 | 1998 | 1977 | 1980 | 1983 | 1983 | 1984 | 1998 |
| Lowest Mean Min. Temperature (F) | 18.5 | 21.6 | 28.5 | 37.8 | 48.5 | 57.4 | 62.3 | 60.5 | 52.5 | 38.1 | 27.9 | 18.8 | 18.5 |
| Year Lowest Occurred | 1977 | 1974 | 1996 | 1973 | 1983 | 1973 | 1990 | 1973 | 1974 | 1976 | 1976 | 1983 | 1977 |
| Mean Precipitation (in.) | 0.59 | 0.63 | 0.58 | 1.03 | 2.35 | 2.78 | 2.22 | 2.87 | 3.24 | 1.62 | 0.85 | 0.82 | 19.58 |
| Highest Precipitation (in.) | 2.12 | 1.97 | 2.26 | 4.34 | 6.49 | 6.86 | 9.32 | 8.09 | 9.58 | 6.06 | 2.52 | 3.12 | 9.58 |
| Year Highest Occurred | 1993 | 1997 | 1999 | 1997 | 1999 | 1999 | 1975 | 1974 | 1986 | 1981 | 1986 | 1991 | 1986 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.01 | 0.00 | 0.23 | 0.28 | 0.12 | 0.15 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1986 | 1999 | 1996 | 1991 | 2000 | 1973 | 1995 | 1976 | 2000 | 1992 | 1999 | 1996 | 1986 |
| Heating Degree Days (F) | 820. | 613. | 460. | 215. | 53. | 4. | 0. | 1. | 31. | 172. | 510. | 771. | 3650. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 28. | 150. | 337. | 422. | 365. | 188. | 24. | 1. | 0. | 1515. |