| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 65.4 | 66.3 | 67.4 | 70.1 | 71.2 | 74.4 | 76.7 | 78.7 | 78.2 | 75.4 | 71.0 | 66.4 | 71.8 |
| Highest Mean Max. Temperature (F) | 69.0 | 73.1 | 73.8 | 75.2 | 77.2 | 81.6 | 81.1 | 83.0 | 86.3 | 79.9 | 77.7 | 71.6 | 86.3 |
| Year Highest Occurred | 1976 | 1977 | 1988 | 1992 | 1984 | 1981 | 1985 | 1971 | 1984 | 1982 | 1977 | 1989 | 1984 |
| Lowest Mean Max. Temperature (F) | 60.4 | 61.9 | 62.6 | 64.6 | 66.4 | 70.1 | 73.7 | 74.9 | 73.5 | 68.1 | 65.7 | 62.2 | 60.4 |
| Year Lowest Occurred | 1974 | 1975 | 1999 | 1975 | 1975 | 1998 | 1994 | 1989 | 1999 | 2000 | 2000 | 1971 | 1974 |
| Mean Temperature (F) | 53.1 | 55.2 | 56.7 | 58.9 | 60.9 | 64.2 | 67.0 | 68.6 | 67.4 | 63.5 | 57.5 | 53.2 | 60.5 |
| Highest Mean Temperature (F) | 57.8 | 59.3 | 61.2 | 63.3 | 65.7 | 69.4 | 70.1 | 72.5 | 74.8 | 67.9 | 62.2 | 59.1 | 74.8 |
| Year Highest Occurred | 1978 | 1983 | 1983 | 1992 | 1997 | 1981 | 1985 | 1971 | 1984 | 1976 | 1977 | 1977 | 1984 |
| Lowest Mean Temperature (F) | 49.5 | 51.2 | 53.5 | 54.1 | 57.6 | 60.8 | 64.4 | 65.2 | 62.9 | 59.6 | 52.0 | 49.6 | 49.5 |
| Year Lowest Occurred | 1989 | 1989 | 1999 | 1975 | 1975 | 1991 | 1994 | 1989 | 1986 | 2000 | 2000 | 1990 | 1989 |
| Mean Min. Temperature (F) | 40.8 | 44.0 | 46.0 | 47.6 | 50.5 | 53.9 | 57.3 | 58.4 | 56.6 | 51.6 | 44.0 | 39.9 | 49.2 |
| Highest Mean Min. Temperature (F) | 48.3 | 49.3 | 51.1 | 51.3 | 55.5 | 57.2 | 60.2 | 62.5 | 63.2 | 56.8 | 48.5 | 48.8 | 63.2 |
| Year Highest Occurred | 1978 | 1995 | 1983 | 1992 | 1992 | 1981 | 1992 | 1984 | 1984 | 1976 | 1997 | 1977 | 1984 |
| Lowest Mean Min. Temperature (F) | 34.2 | 38.9 | 42.5 | 43.7 | 47.3 | 50.6 | 53.1 | 55.0 | 51.2 | 46.6 | 38.2 | 32.9 | 32.9 |
| Year Lowest Occurred | 1976 | 1989 | 1976 | 1975 | 1991 | 1980 | 1987 | 1987 | 1986 | 1971 | 2000 | 1990 | 1990 |
| Mean Precipitation (in.) | 3.57 | 4.28 | 3.51 | 0.63 | 0.23 | 0.05 | 0.03 | 0.11 | 0.42 | 0.52 | 1.32 | 2.26 | 16.93 |
| Highest Precipitation (in.) | 12.99 | 13.56 | 11.45 | 4.55 | 1.83 | 0.46 | 0.40 | 1.87 | 4.13 | 2.40 | 6.35 | 5.77 | 13.56 |
| Year Highest Occurred | 1995 | 1998 | 1991 | 1983 | 1977 | 1988 | 1980 | 1983 | 1976 | 1976 | 1972 | 1971 | 1998 |
| Lowest Precipitation (in.) | 0.00 | 0.01 | 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 | 1984 | 1972 | 1993 | 1991 | 1996 | 2000 | 1999 | 1996 | 1999 | 2000 | 1989 | 1976 |
| Heating Degree Days (F) | 369. | 277. | 263. | 193. | 151. | 75. | 22. | 23. | 54. | 92. | 234. | 368. | 2121. |
| Cooling Degree Days (F) | 0. | 0. | 5. | 8. | 23. | 50. | 84. | 133. | 125. | 45. | 9. | 0. | 482. |