| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 57.8 | 62.0 | 64.8 | 69.6 | 74.2 | 79.9 | 82.2 | 82.3 | 81.8 | 76.9 | 65.3 | 58.1 | 71.2 |
| Highest Mean Max. Temperature (F) | 63.1 | 68.0 | 71.1 | 76.0 | 82.2 | 89.3 | 88.1 | 88.6 | 88.1 | 84.3 | 71.5 | 64.0 | 89.3 |
| Year Highest Occurred | 1976 | 1977 | 1972 | 1977 | 1978 | 1981 | 1977 | 1971 | 1984 | 1978 | 1995 | 1976 | 1981 |
| Lowest Mean Max. Temperature (F) | 52.2 | 57.6 | 58.6 | 64.8 | 65.9 | 72.9 | 74.7 | 74.0 | 71.5 | 71.2 | 58.4 | 52.0 | 52.0 |
| Year Lowest Occurred | 1985 | 1989 | 1985 | 1975 | 1998 | 1998 | 1987 | 1986 | 1986 | 1984 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 48.7 | 52.3 | 54.5 | 57.6 | 61.5 | 66.0 | 67.6 | 67.8 | 67.2 | 62.8 | 54.2 | 48.5 | 59.1 |
| Highest Mean Temperature (F) | 51.9 | 55.1 | 59.0 | 61.2 | 65.8 | 73.4 | 70.4 | 70.9 | 71.9 | 66.6 | 58.8 | 52.6 | 73.4 |
| Year Highest Occurred | 1984 | 1991 | 1984 | 1989 | 1984 | 1981 | 1983 | 1983 | 1984 | 1983 | 1995 | 1977 | 1981 |
| Lowest Mean Temperature (F) | 43.8 | 47.8 | 50.1 | 52.3 | 57.3 | 62.2 | 62.6 | 62.0 | 60.8 | 59.4 | 48.9 | 43.4 | 43.4 |
| Year Lowest Occurred | 1985 | 1989 | 1985 | 1975 | 1985 | 1991 | 1987 | 1986 | 1986 | 1971 | 1994 | 1985 | 1985 |
| Mean Min. Temperature (F) | 39.5 | 42.5 | 44.2 | 45.6 | 48.7 | 52.1 | 53.0 | 53.2 | 52.5 | 48.7 | 43.0 | 38.8 | 46.8 |
| Highest Mean Min. Temperature (F) | 46.9 | 47.1 | 48.6 | 49.7 | 52.4 | 57.5 | 55.9 | 56.4 | 57.6 | 52.9 | 48.4 | 46.1 | 57.6 |
| Year Highest Occurred | 1995 | 1983 | 1984 | 1990 | 1993 | 1981 | 1995 | 1983 | 1983 | 1983 | 1997 | 1983 | 1983 |
| Lowest Mean Min. Temperature (F) | 33.9 | 37.6 | 38.8 | 39.8 | 45.3 | 49.2 | 50.4 | 50.0 | 49.8 | 41.3 | 38.2 | 31.7 | 31.7 |
| Year Lowest Occurred | 1972 | 1990 | 1977 | 1975 | 1977 | 1980 | 1987 | 1973 | 1987 | 1971 | 1994 | 1990 | 1990 |
| Mean Precipitation (in.) | 6.25 | 6.08 | 4.71 | 1.67 | 0.83 | 0.19 | 0.06 | 0.11 | 0.49 | 1.81 | 4.31 | 4.50 | 31.01 |
| Highest Precipitation (in.) | 17.08 | 19.42 | 15.74 | 4.00 | 5.46 | 1.06 | 1.61 | 1.01 | 2.75 | 6.44 | 13.23 | 11.83 | 19.42 |
| Year Highest Occurred | 1995 | 1998 | 1983 | 1982 | 1990 | 1993 | 1974 | 1997 | 1986 | 1975 | 1973 | 1996 | 1998 |
| Lowest Precipitation (in.) | 0.39 | 0.19 | 0.02 | 0.16 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.20 | 0.00 | 0.00 |
| Year Lowest Occurred | 1976 | 1971 | 1988 | 1987 | 1992 | 1998 | 2000 | 1999 | 1995 | 1995 | 1986 | 1989 | 1992 |
| Heating Degree Days (F) | 507. | 356. | 328. | 227. | 144. | 65. | 29. | 36. | 52. | 109. | 328. | 513. | 2694. |
| Cooling Degree Days (F) | 0. | 0. | 2. | 5. | 35. | 94. | 110. | 121. | 116. | 41. | 2. | 0. | 526. |