| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 55.3 | 59.8 | 66.9 | 74.5 | 82.5 | 90.0 | 90.3 | 88.2 | 82.1 | 74.0 | 63.5 | 56.3 | 73.6 |
| Highest Mean Max. Temperature (F) | 62.0 | 68.6 | 73.8 | 80.5 | 92.6 | 98.0 | 96.5 | 94.5 | 89.9 | 80.2 | 71.5 | 62.6 | 98.0 |
| Year Highest Occurred | 1999 | 1999 | 1974 | 1972 | 1996 | 1990 | 1980 | 1999 | 1998 | 1979 | 1999 | 1981 | 1990 |
| Lowest Mean Max. Temperature (F) | 45.6 | 52.0 | 61.1 | 68.4 | 76.6 | 82.9 | 82.6 | 81.6 | 71.8 | 67.1 | 55.9 | 49.6 | 45.6 |
| Year Lowest Occurred | 1979 | 1973 | 1987 | 1983 | 1976 | 1986 | 1975 | 1971 | 1974 | 1976 | 1972 | 1986 | 1979 |
| Mean Temperature (F) | 44.1 | 48.1 | 54.5 | 61.6 | 70.0 | 76.9 | 77.9 | 76.5 | 70.8 | 62.6 | 52.2 | 45.2 | 61.7 |
| Highest Mean Temperature (F) | 50.7 | 55.5 | 59.5 | 66.7 | 79.0 | 83.8 | 83.4 | 82.1 | 77.5 | 67.4 | 58.4 | 50.4 | 83.8 |
| Year Highest Occurred | 2000 | 2000 | 1974 | 1986 | 1996 | 1994 | 1980 | 1999 | 1977 | 1979 | 1981 | 1981 | 1994 |
| Lowest Mean Temperature (F) | 36.0 | 41.7 | 49.3 | 55.2 | 65.5 | 71.4 | 71.4 | 71.1 | 62.8 | 56.1 | 45.2 | 38.8 | 36.0 |
| Year Lowest Occurred | 1979 | 1978 | 1987 | 1997 | 1976 | 1986 | 1975 | 1971 | 1974 | 1976 | 1972 | 1989 | 1979 |
| Mean Min. Temperature (F) | 32.8 | 36.4 | 42.0 | 48.6 | 57.4 | 63.7 | 65.5 | 64.7 | 59.4 | 51.1 | 40.9 | 34.1 | 49.7 |
| Highest Mean Min. Temperature (F) | 39.5 | 44.7 | 45.9 | 53.1 | 65.3 | 70.6 | 70.2 | 69.7 | 65.4 | 55.8 | 46.9 | 38.9 | 70.6 |
| Year Highest Occurred | 2000 | 1995 | 1986 | 1986 | 1996 | 1994 | 1980 | 1999 | 1977 | 1994 | 1981 | 1994 | 1994 |
| Lowest Mean Min. Temperature (F) | 26.3 | 29.9 | 36.4 | 41.7 | 52.2 | 58.8 | 60.1 | 60.5 | 53.7 | 45.1 | 34.5 | 25.3 | 25.3 |
| Year Lowest Occurred | 1979 | 1978 | 1996 | 1997 | 1983 | 1983 | 1975 | 1971 | 1974 | 1976 | 1972 | 1989 | 1989 |
| Mean Precipitation (in.) | 0.42 | 0.49 | 0.26 | 0.53 | 1.50 | 2.25 | 2.10 | 2.65 | 3.64 | 1.28 | 0.55 | 0.57 | 16.24 |
| Highest Precipitation (in.) | 1.49 | 2.44 | 1.28 | 1.87 | 4.93 | 16.93 | 5.15 | 7.07 | 12.37 | 3.65 | 1.62 | 3.56 | 16.93 |
| Year Highest Occurred | 1981 | 1987 | 1977 | 1985 | 1992 | 1986 | 1976 | 1984 | 1978 | 1983 | 1986 | 1991 | 1986 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.05 | 0.20 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1989 | 1999 | 1991 | 1991 | 2000 | 1998 | 1994 | 1976 | 2000 | 1995 | 1999 | 1985 | 1989 |
| Heating Degree Days (F) | 650. | 474. | 331. | 154. | 49. | 6. | 0. | 4. | 34. | 138. | 394. | 614. | 2848. |
| Cooling Degree Days (F) | 0. | 0. | 4. | 50. | 202. | 360. | 399. | 358. | 205. | 62. | 10. | 0. | 1650. |