| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 55.2 | 57.7 | 60.6 | 66.5 | 74.3 | 83.3 | 90.4 | 89.6 | 84.0 | 74.4 | 61.3 | 55.1 | 71.0 |
| Highest Mean Max. Temperature (F) | 60.7 | 66.1 | 67.6 | 74.7 | 83.2 | 90.3 | 96.4 | 94.1 | 91.2 | 81.5 | 70.8 | 62.8 | 96.4 |
| Year Highest Occurred | 1984 | 1991 | 1997 | 1985 | 1992 | 1985 | 1996 | 1992 | 1974 | 1991 | 1995 | 1989 | 1996 |
| Lowest Mean Max. Temperature (F) | 49.2 | 50.6 | 53.0 | 57.2 | 61.4 | 76.1 | 84.5 | 80.1 | 76.3 | 67.1 | 53.3 | 46.8 | 46.8 |
| Year Lowest Occurred | 1973 | 1998 | 1991 | 1975 | 1998 | 1980 | 1983 | 1976 | 1986 | 1972 | 1973 | 1972 | 1972 |
| Mean Temperature (F) | 43.5 | 46.0 | 48.6 | 52.8 | 59.5 | 67.3 | 72.9 | 71.9 | 66.7 | 58.4 | 48.4 | 43.2 | 56.6 |
| Highest Mean Temperature (F) | 47.2 | 50.2 | 52.8 | 58.5 | 66.4 | 71.9 | 77.5 | 74.6 | 70.8 | 63.6 | 54.5 | 48.3 | 77.5 |
| Year Highest Occurred | 1986 | 1995 | 1984 | 1985 | 1992 | 1977 | 1988 | 1992 | 1991 | 1991 | 1995 | 1995 | 1988 |
| Lowest Mean Temperature (F) | 39.5 | 41.8 | 44.1 | 45.5 | 51.7 | 61.7 | 68.1 | 66.5 | 61.7 | 53.2 | 42.9 | 36.8 | 36.8 |
| Year Lowest Occurred | 1982 | 1989 | 1991 | 1975 | 1998 | 1980 | 1983 | 1976 | 1986 | 1971 | 1994 | 1972 | 1972 |
| Mean Min. Temperature (F) | 31.8 | 34.3 | 36.5 | 39.1 | 44.7 | 51.3 | 55.4 | 54.1 | 49.3 | 42.4 | 35.4 | 31.2 | 42.1 |
| Highest Mean Min. Temperature (F) | 41.8 | 40.0 | 41.4 | 43.1 | 49.6 | 55.2 | 59.5 | 58.1 | 53.2 | 47.3 | 40.9 | 38.5 | 59.5 |
| Year Highest Occurred | 1995 | 1996 | 1993 | 1990 | 1992 | 1977 | 1988 | 1972 | 1998 | 1993 | 1973 | 1983 | 1988 |
| Lowest Mean Min. Temperature (F) | 26.6 | 28.2 | 31.5 | 33.7 | 41.4 | 47.2 | 51.4 | 51.6 | 46.5 | 36.1 | 31.7 | 22.7 | 22.7 |
| Year Lowest Occurred | 1976 | 1974 | 1976 | 1975 | 1975 | 1980 | 1999 | 1985 | 1996 | 1971 | 1994 | 1990 | 1990 |
| Mean Precipitation (in.) | 6.01 | 5.37 | 4.37 | 1.39 | 0.94 | 0.22 | 0.06 | 0.08 | 0.45 | 1.41 | 3.42 | 4.27 | 27.99 |
| Highest Precipitation (in.) | 25.96 | 22.03 | 15.71 | 4.83 | 5.99 | 1.09 | 0.70 | 0.76 | 4.11 | 4.85 | 10.44 | 13.00 | 25.96 |
| Year Highest Occurred | 1995 | 1998 | 1995 | 1983 | 1998 | 1993 | 1974 | 1997 | 1989 | 1989 | 1983 | 1983 | 1995 |
| Lowest Precipitation (in.) | 0.27 | 0.02 | 0.10 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.02 | 0.00 | 0.00 |
| Year Lowest Occurred | 1976 | 1971 | 1988 | 1990 | 1985 | 1996 | 2000 | 2000 | 1995 | 1995 | 1995 | 1989 | 1990 |
| Heating Degree Days (F) | 666. | 533. | 510. | 373. | 205. | 48. | 9. | 5. | 54. | 225. | 500. | 676. | 3804. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 7. | 35. | 117. | 253. | 218. | 103. | 20. | 0. | 0. | 753. |