| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 58.0 | 62.5 | 66.3 | 73.0 | 79.2 | 85.5 | 89.3 | 88.3 | 85.6 | 77.7 | 65.1 | 58.4 | 74.1 |
| Highest Mean Max. Temperature (F) | 63.5 | 69.3 | 72.5 | 80.6 | 87.4 | 91.8 | 96.6 | 95.1 | 91.7 | 82.7 | 72.4 | 65.4 | 96.6 |
| Year Highest Occurred | 1976 | 1988 | 1997 | 1987 | 1997 | 1981 | 1996 | 1996 | 1984 | 1990 | 1995 | 1976 | 1996 |
| Lowest Mean Max. Temperature (F) | 55.5 | 56.2 | 59.1 | 65.4 | 68.4 | 78.7 | 85.3 | 83.7 | 77.7 | 70.3 | 58.6 | 52.3 | 52.3 |
| Year Lowest Occurred | 1982 | 1998 | 1991 | 1975 | 1998 | 1998 | 1994 | 1976 | 1986 | 1972 | 1994 | 1972 | 1972 |
| Mean Temperature (F) | 47.9 | 51.4 | 54.1 | 58.6 | 63.6 | 68.8 | 71.6 | 71.0 | 68.6 | 62.5 | 53.4 | 47.6 | 59.9 |
| Highest Mean Temperature (F) | 52.7 | 55.1 | 58.2 | 63.4 | 69.6 | 74.1 | 76.4 | 74.9 | 73.1 | 65.4 | 58.8 | 51.5 | 76.4 |
| Year Highest Occurred | 1984 | 1995 | 1997 | 1987 | 1997 | 1981 | 1996 | 1996 | 1997 | 1991 | 1995 | 1996 | 1996 |
| Lowest Mean Temperature (F) | 44.0 | 46.3 | 50.2 | 51.9 | 57.7 | 65.2 | 68.9 | 67.9 | 63.4 | 58.1 | 48.2 | 42.4 | 42.4 |
| Year Lowest Occurred | 1972 | 1989 | 1991 | 1975 | 1977 | 1980 | 1987 | 1976 | 1986 | 1971 | 1994 | 1972 | 1972 |
| Mean Min. Temperature (F) | 37.8 | 40.3 | 41.8 | 44.2 | 48.0 | 52.1 | 53.9 | 53.6 | 51.6 | 47.2 | 41.6 | 36.7 | 45.7 |
| Highest Mean Min. Temperature (F) | 46.5 | 45.6 | 46.7 | 48.7 | 52.6 | 56.4 | 56.9 | 56.5 | 55.9 | 50.7 | 47.3 | 44.1 | 56.9 |
| Year Highest Occurred | 1995 | 1995 | 1993 | 1985 | 1992 | 1981 | 1988 | 1997 | 1998 | 1992 | 1981 | 1983 | 1988 |
| Lowest Mean Min. Temperature (F) | 31.9 | 35.0 | 35.7 | 38.5 | 43.8 | 48.6 | 51.1 | 49.6 | 48.1 | 40.6 | 36.9 | 29.3 | 29.3 |
| Year Lowest Occurred | 1976 | 1989 | 1976 | 1975 | 1977 | 1971 | 1973 | 1973 | 1974 | 1971 | 1978 | 1990 | 1990 |
| Mean Precipitation (in.) | 7.46 | 7.10 | 5.31 | 1.74 | 0.68 | 0.17 | 0.04 | 0.08 | 0.41 | 1.84 | 4.83 | 5.22 | 34.88 |
| Highest Precipitation (in.) | 23.30 | 25.60 | 16.83 | 6.82 | 4.06 | 1.35 | 1.08 | 0.80 | 1.95 | 5.13 | 15.25 | 14.53 | 25.60 |
| Year Highest Occurred | 1995 | 1986 | 1995 | 1982 | 1996 | 1993 | 1974 | 1976 | 1982 | 1979 | 1973 | 1992 | 1986 |
| Lowest Precipitation (in.) | 0.48 | 0.26 | 0.34 | 0.05 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.12 | 0.00 | 0.00 |
| Year Lowest Occurred | 1976 | 1971 | 1994 | 1973 | 1997 | 1998 | 2000 | 2000 | 2000 | 1995 | 1986 | 1989 | 1997 |
| Heating Degree Days (F) | 531. | 381. | 343. | 216. | 115. | 21. | 5. | 5. | 26. | 116. | 352. | 541. | 2652. |
| Cooling Degree Days (F) | 0. | 0. | 3. | 23. | 72. | 134. | 210. | 190. | 134. | 37. | 3. | 0. | 806. |