| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 56.2 | 61.4 | 65.3 | 70.6 | 76.0 | 81.8 | 85.0 | 84.4 | 82.1 | 75.4 | 63.4 | 56.3 | 71.5 |
| Highest Mean Max. Temperature (F) | 61.5 | 67.0 | 72.3 | 76.2 | 82.7 | 89.9 | 88.9 | 88.6 | 86.9 | 81.4 | 72.7 | 62.1 | 89.9 |
| Year Highest Occurred | 1994 | 1988 | 1997 | 1987 | 1997 | 1981 | 1988 | 1998 | 1997 | 1999 | 1995 | 1999 | 1981 |
| Lowest Mean Max. Temperature (F) | 51.9 | 57.3 | 59.6 | 63.9 | 67.5 | 75.4 | 80.6 | 79.0 | 76.0 | 69.5 | 57.8 | 50.2 | 50.2 |
| Year Lowest Occurred | 1985 | 1989 | 1991 | 1983 | 1998 | 1982 | 1994 | 1980 | 1977 | 1984 | 1982 | 1972 | 1972 |
| Mean Temperature (F) | 48.5 | 52.2 | 54.7 | 58.2 | 62.5 | 66.9 | 69.2 | 69.0 | 67.3 | 62.5 | 54.2 | 48.5 | 59.5 |
| Highest Mean Temperature (F) | 52.5 | 55.5 | 58.3 | 61.7 | 67.6 | 73.3 | 72.9 | 71.2 | 71.0 | 66.1 | 59.6 | 53.2 | 73.3 |
| Year Highest Occurred | 1995 | 1995 | 1986 | 1992 | 1997 | 1981 | 1985 | 1993 | 1997 | 1992 | 1995 | 1996 | 1981 |
| Lowest Mean Temperature (F) | 44.2 | 47.8 | 51.0 | 53.2 | 58.1 | 63.4 | 66.2 | 65.3 | 63.7 | 59.0 | 49.7 | 43.7 | 43.7 |
| Year Lowest Occurred | 1972 | 1989 | 1999 | 1975 | 1999 | 1982 | 1994 | 1980 | 1986 | 1971 | 1994 | 1972 | 1972 |
| Mean Min. Temperature (F) | 40.7 | 43.0 | 44.1 | 45.8 | 48.9 | 52.0 | 53.4 | 53.6 | 52.5 | 49.6 | 45.0 | 40.6 | 47.4 |
| Highest Mean Min. Temperature (F) | 47.4 | 46.8 | 47.8 | 49.0 | 52.5 | 56.7 | 57.0 | 56.6 | 55.1 | 52.9 | 48.7 | 45.8 | 57.0 |
| Year Highest Occurred | 1995 | 1986 | 1978 | 1992 | 1997 | 1981 | 1995 | 1997 | 1979 | 1987 | 1981 | 1981 | 1995 |
| Lowest Mean Min. Temperature (F) | 35.8 | 38.3 | 39.7 | 41.8 | 45.4 | 48.6 | 50.8 | 49.8 | 49.2 | 44.8 | 39.9 | 34.9 | 34.9 |
| Year Lowest Occurred | 1972 | 1989 | 1976 | 1975 | 1999 | 1991 | 1981 | 1973 | 1988 | 1971 | 1994 | 1990 | 1990 |
| Mean Precipitation (in.) | 9.60 | 9.10 | 7.05 | 2.56 | 1.20 | 0.24 | 0.01 | 0.12 | 0.50 | 2.33 | 7.47 | 7.29 | 47.47 |
| Highest Precipitation (in.) | 23.40 | 26.95 | 22.69 | 8.87 | 8.04 | 2.44 | 0.26 | 1.74 | 2.98 | 8.54 | 26.00 | 20.56 | 26.95 |
| Year Highest Occurred | 1993 | 1986 | 1983 | 1982 | 1990 | 1992 | 1975 | 1976 | 1977 | 1972 | 1973 | 1996 | 1986 |
| Lowest Precipitation (in.) | 0.33 | 0.33 | 0.06 | 0.06 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.14 | 0.00 | 0.00 |
| Year Lowest Occurred | 1976 | 1997 | 1988 | 1973 | 1992 | 1999 | 2000 | 2000 | 1995 | 1978 | 1986 | 1989 | 1992 |
| Heating Degree Days (F) | 513. | 358. | 323. | 215. | 121. | 41. | 9. | 7. | 28. | 112. | 327. | 513. | 2567. |
| Cooling Degree Days (F) | 0. | 0. | 3. | 10. | 41. | 98. | 140. | 130. | 98. | 35. | 2. | 0. | 557. |