| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 54.2 | 61.7 | 66.8 | 73.7 | 81.6 | 89.2 | 93.8 | 92.2 | 86.9 | 78.0 | 63.7 | 54.2 | 74.7 |
| Highest Mean Max. Temperature (F) | 60.5 | 69.0 | 74.2 | 81.5 | 87.7 | 93.9 | 98.6 | 96.3 | 91.4 | 83.9 | 70.3 | 60.6 | 98.6 |
| Year Highest Occurred | 1986 | 1991 | 1972 | 1987 | 1997 | 1981 | 1988 | 1986 | 1974 | 1991 | 1995 | 1979 | 1988 |
| Lowest Mean Max. Temperature (F) | 46.2 | 57.2 | 60.6 | 66.4 | 73.0 | 84.5 | 89.3 | 85.3 | 81.0 | 72.0 | 57.1 | 47.0 | 46.2 |
| Year Lowest Occurred | 1972 | 1971 | 1973 | 1975 | 1998 | 1982 | 1987 | 1976 | 1985 | 1984 | 1982 | 1985 | 1972 |
| Mean Temperature (F) | 45.8 | 51.4 | 55.9 | 60.9 | 67.8 | 74.7 | 79.3 | 77.9 | 73.1 | 64.9 | 53.0 | 45.2 | 62.5 |
| Highest Mean Temperature (F) | 51.5 | 55.3 | 60.1 | 66.4 | 74.4 | 78.6 | 83.7 | 81.4 | 77.4 | 70.5 | 59.1 | 50.8 | 83.7 |
| Year Highest Occurred | 1986 | 1992 | 1997 | 1992 | 1992 | 1981 | 1988 | 1996 | 1984 | 1991 | 1995 | 1995 | 1988 |
| Lowest Mean Temperature (F) | 39.0 | 46.1 | 50.5 | 54.2 | 60.9 | 70.1 | 75.0 | 72.3 | 66.8 | 60.0 | 48.3 | 40.7 | 39.0 |
| Year Lowest Occurred | 1972 | 1971 | 1973 | 1975 | 1977 | 1980 | 1983 | 1976 | 1986 | 1984 | 1994 | 1972 | 1972 |
| Mean Min. Temperature (F) | 37.4 | 41.1 | 44.9 | 48.1 | 54.0 | 60.1 | 64.8 | 63.6 | 59.3 | 51.8 | 42.2 | 36.2 | 50.3 |
| Highest Mean Min. Temperature (F) | 43.9 | 46.6 | 49.9 | 53.2 | 61.5 | 64.6 | 69.1 | 67.0 | 63.8 | 57.1 | 48.3 | 43.0 | 69.1 |
| Year Highest Occurred | 1995 | 1996 | 1993 | 1989 | 1992 | 2000 | 1996 | 1996 | 1984 | 1991 | 1997 | 1995 | 1996 |
| Lowest Mean Min. Temperature (F) | 31.7 | 35.0 | 39.5 | 42.0 | 48.2 | 55.0 | 60.3 | 59.4 | 52.3 | 46.1 | 38.3 | 31.0 | 31.0 |
| Year Lowest Occurred | 1972 | 1971 | 1977 | 1975 | 1977 | 1980 | 1983 | 1976 | 1986 | 1971 | 1975 | 1990 | 1990 |
| Mean Precipitation (in.) | 2.03 | 1.95 | 2.15 | 0.80 | 0.37 | 0.14 | 0.01 | 0.02 | 0.25 | 0.65 | 1.17 | 1.49 | 11.03 |
| Highest Precipitation (in.) | 4.99 | 4.87 | 7.43 | 2.24 | 2.23 | 1.25 | 0.25 | 0.13 | 1.53 | 4.67 | 3.56 | 3.88 | 7.43 |
| Year Highest Occurred | 1995 | 1978 | 1991 | 1988 | 1971 | 1998 | 1982 | 1977 | 1976 | 1974 | 1985 | 1996 | 1991 |
| Lowest Precipitation (in.) | 0.00 | 0.10 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1976 | 1977 | 1972 | 1997 | 1999 | 1999 | 2000 | 1999 | 2000 | 1999 | 2000 | 1999 | 1976 |
| Heating Degree Days (F) | 596. | 381. | 295. | 171. | 63. | 2. | 0. | 0. | 8. | 93. | 364. | 615. | 2588. |
| Cooling Degree Days (F) | 0. | 0. | 11. | 46. | 149. | 292. | 443. | 400. | 251. | 90. | 3. | 0. | 1685. |