| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 53.7 | 59.5 | 64.3 | 70.9 | 77.7 | 83.9 | 87.4 | 86.6 | 83.3 | 75.5 | 62.7 | 54.5 | 71.7 |
| Highest Mean Max. Temperature (F) | 58.4 | 65.1 | 71.3 | 77.9 | 85.4 | 90.6 | 93.1 | 90.8 | 90.1 | 80.9 | 69.7 | 59.8 | 93.1 |
| Year Highest Occurred | 1976 | 1988 | 1988 | 1987 | 1997 | 1981 | 1988 | 1998 | 1984 | 1991 | 1995 | 1999 | 1988 |
| Lowest Mean Max. Temperature (F) | 48.4 | 56.0 | 59.4 | 63.0 | 68.0 | 76.8 | 83.5 | 83.0 | 77.9 | 70.4 | 56.5 | 47.8 | 47.8 |
| Year Lowest Occurred | 1985 | 1989 | 1991 | 1975 | 1998 | 1982 | 1999 | 1980 | 1986 | 1972 | 1982 | 1985 | 1985 |
| Mean Temperature (F) | 46.3 | 50.7 | 54.3 | 58.5 | 63.7 | 68.9 | 71.2 | 70.8 | 68.6 | 62.5 | 53.0 | 46.5 | 59.6 |
| Highest Mean Temperature (F) | 51.1 | 54.1 | 58.4 | 62.5 | 70.8 | 76.2 | 74.9 | 74.0 | 74.0 | 66.7 | 58.8 | 52.3 | 76.2 |
| Year Highest Occurred | 1995 | 1986 | 1988 | 1987 | 1997 | 1981 | 1996 | 1998 | 1984 | 1991 | 1995 | 1995 | 1981 |
| Lowest Mean Temperature (F) | 41.0 | 47.0 | 50.1 | 52.0 | 58.9 | 64.7 | 67.8 | 68.2 | 63.5 | 58.6 | 48.5 | 41.6 | 41.0 |
| Year Lowest Occurred | 1972 | 1989 | 1991 | 1975 | 1998 | 1982 | 1987 | 1987 | 1986 | 1971 | 1994 | 1990 | 1972 |
| Mean Min. Temperature (F) | 38.8 | 41.8 | 44.3 | 46.1 | 49.7 | 53.8 | 54.9 | 55.0 | 53.8 | 49.5 | 43.3 | 38.5 | 47.5 |
| Highest Mean Min. Temperature (F) | 45.9 | 46.3 | 48.1 | 50.4 | 56.1 | 61.8 | 57.7 | 59.4 | 59.1 | 53.7 | 48.8 | 45.3 | 61.8 |
| Year Highest Occurred | 1995 | 1986 | 1983 | 1989 | 1997 | 1981 | 1996 | 1984 | 1979 | 1979 | 1997 | 1995 | 1981 |
| Lowest Mean Min. Temperature (F) | 32.7 | 37.4 | 39.2 | 41.1 | 46.1 | 49.3 | 51.5 | 50.8 | 48.0 | 43.3 | 38.8 | 31.2 | 31.2 |
| Year Lowest Occurred | 1972 | 1990 | 1985 | 1976 | 1976 | 1976 | 1975 | 1987 | 1987 | 1971 | 1971 | 1990 | 1990 |
| Mean Precipitation (in.) | 4.25 | 3.81 | 3.24 | 1.04 | 0.46 | 0.12 | 0.02 | 0.08 | 0.24 | 0.94 | 2.59 | 2.79 | 19.58 |
| Highest Precipitation (in.) | 10.38 | 12.18 | 10.00 | 4.10 | 2.66 | 1.37 | 0.28 | 0.71 | 1.23 | 2.99 | 6.86 | 6.82 | 12.18 |
| Year Highest Occurred | 1995 | 1998 | 1995 | 1982 | 1998 | 1995 | 1974 | 1983 | 1989 | 1972 | 1994 | 1996 | 1998 |
| Lowest Precipitation (in.) | 0.33 | 0.13 | 0.00 | 0.04 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.04 | 0.00 | 0.00 |
| Year Lowest Occurred | 1984 | 1995 | 1988 | 1985 | 1992 | 1999 | 2000 | 2000 | 1996 | 1995 | 1995 | 1989 | 1988 |
| Heating Degree Days (F) | 582. | 402. | 335. | 212. | 106. | 28. | 4. | 5. | 33. | 115. | 362. | 573. | 2757. |
| Cooling Degree Days (F) | 0. | 0. | 2. | 17. | 66. | 143. | 195. | 185. | 139. | 37. | 2. | 0. | 786. |