| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 53.4 | 56.9 | 61.8 | 69.0 | 78.3 | 87.7 | 96.1 | 95.9 | 89.0 | 76.8 | 60.3 | 53.5 | 73.2 |
| Highest Mean Max. Temperature (F) | 59.2 | 66.7 | 69.1 | 79.0 | 89.0 | 93.2 | 101.8 | 100.2 | 99.0 | 87.0 | 69.3 | 62.5 | 101.8 |
| Year Highest Occurred | 1984 | 1988 | 1988 | 1987 | 1992 | 1987 | 1994 | 1986 | 1991 | 1988 | 1976 | 1976 | 1994 |
| Lowest Mean Max. Temperature (F) | 47.1 | 48.6 | 55.4 | 61.8 | 64.3 | 80.7 | 89.7 | 85.6 | 79.7 | 67.3 | 51.7 | 44.5 | 44.5 |
| Year Lowest Occurred | 1993 | 1998 | 1983 | 1975 | 1998 | 1980 | 1983 | 1976 | 1985 | 1984 | 1973 | 1972 | 1972 |
| Mean Temperature (F) | 44.5 | 47.3 | 51.1 | 56.7 | 64.9 | 72.9 | 79.5 | 78.6 | 72.9 | 63.1 | 50.4 | 44.6 | 60.5 |
| Highest Mean Temperature (F) | 48.7 | 54.3 | 56.3 | 63.1 | 72.9 | 77.0 | 83.7 | 82.5 | 79.9 | 70.9 | 57.6 | 49.2 | 83.7 |
| Year Highest Occurred | 1984 | 1991 | 1986 | 1987 | 1992 | 1977 | 1994 | 1996 | 1991 | 1991 | 1995 | 1989 | 1994 |
| Lowest Mean Temperature (F) | 39.6 | 42.1 | 46.6 | 49.2 | 55.6 | 67.0 | 74.6 | 71.2 | 66.1 | 56.5 | 43.3 | 37.2 | 37.2 |
| Year Lowest Occurred | 1993 | 1999 | 1975 | 1975 | 1998 | 1980 | 1983 | 1976 | 1986 | 1984 | 1994 | 1972 | 1972 |
| Mean Min. Temperature (F) | 35.6 | 37.6 | 40.4 | 44.3 | 51.5 | 58.1 | 62.9 | 61.2 | 56.7 | 49.3 | 40.5 | 35.6 | 47.8 |
| Highest Mean Min. Temperature (F) | 40.2 | 42.1 | 45.3 | 49.7 | 56.7 | 61.9 | 66.1 | 65.4 | 60.9 | 55.2 | 46.5 | 40.2 | 66.1 |
| Year Highest Occurred | 1986 | 1991 | 1986 | 1990 | 1992 | 2000 | 1996 | 1998 | 1999 | 1991 | 1995 | 1995 | 1996 |
| Lowest Mean Min. Temperature (F) | 31.6 | 32.1 | 36.3 | 36.6 | 46.1 | 53.3 | 59.6 | 56.8 | 52.1 | 44.8 | 33.9 | 29.2 | 29.2 |
| Year Lowest Occurred | 1973 | 1989 | 1977 | 1975 | 1977 | 1980 | 1983 | 1976 | 1986 | 1975 | 1994 | 1990 | 1990 |
| Mean Precipitation (in.) | 11.26 | 10.69 | 11.14 | 4.22 | 2.76 | 1.07 | 0.41 | 0.24 | 1.56 | 2.95 | 8.15 | 8.79 | 63.24 |
| Highest Precipitation (in.) | 48.05 | 39.39 | 39.62 | 12.25 | 13.09 | 4.54 | 7.08 | 3.59 | 8.27 | 8.24 | 27.78 | 26.82 | 48.05 |
| Year Highest Occurred | 1995 | 1998 | 1983 | 1982 | 1990 | 1995 | 1974 | 1976 | 1977 | 1975 | 1973 | 1996 | 1995 |
| Lowest Precipitation (in.) | 0.52 | 0.13 | 0.36 | 0.13 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.22 | 0.00 | 0.00 |
| Year Lowest Occurred | 1976 | 1988 | 1988 | 1973 | 1976 | 1987 | 1999 | 2000 | 1999 | 1995 | 1995 | 1989 | 1976 |
| Heating Degree Days (F) | 637. | 497. | 434. | 276. | 122. | 14. | 0. | 0. | 27. | 157. | 442. | 634. | 3240. |
| Cooling Degree Days (F) | 0. | 0. | 3. | 24. | 118. | 250. | 450. | 421. | 262. | 96. | 4. | 0. | 1628. |