| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 57.6 | 61.4 | 64.3 | 68.1 | 71.5 | 75.9 | 78.3 | 78.6 | 78.0 | 73.5 | 64.4 | 57.7 | 69.1 |
| Highest Mean Max. Temperature (F) | 60.7 | 65.0 | 69.0 | 73.8 | 77.4 | 82.5 | 82.4 | 82.1 | 86.0 | 77.1 | 69.3 | 61.5 | 86.0 |
| Year Highest Occurred | 1986 | 1991 | 1997 | 1987 | 1997 | 1981 | 1984 | 1998 | 1984 | 1992 | 1995 | 1995 | 1984 |
| Lowest Mean Max. Temperature (F) | 54.1 | 56.6 | 60.0 | 61.7 | 65.7 | 71.3 | 74.1 | 75.4 | 74.3 | 69.3 | 59.4 | 52.8 | 52.8 |
| Year Lowest Occurred | 1982 | 1989 | 1973 | 1975 | 1977 | 1982 | 2000 | 1991 | 1986 | 1975 | 1994 | 1972 | 1972 |
| Mean Temperature (F) | 49.8 | 53.3 | 55.8 | 59.0 | 62.2 | 65.9 | 68.0 | 68.5 | 67.8 | 63.7 | 55.8 | 49.7 | 60.0 |
| Highest Mean Temperature (F) | 54.7 | 56.3 | 60.0 | 63.8 | 67.2 | 72.7 | 72.7 | 71.8 | 74.5 | 66.8 | 59.8 | 54.5 | 74.5 |
| Year Highest Occurred | 1986 | 1995 | 1984 | 1985 | 1997 | 1981 | 1984 | 1983 | 1984 | 1983 | 1995 | 1995 | 1984 |
| Lowest Mean Temperature (F) | 46.3 | 48.4 | 51.1 | 53.5 | 57.5 | 61.2 | 65.9 | 65.7 | 64.9 | 59.7 | 50.8 | 44.1 | 44.1 |
| Year Lowest Occurred | 1992 | 1989 | 1991 | 1975 | 1999 | 1991 | 2000 | 1991 | 1989 | 1971 | 1994 | 1990 | 1990 |
| Mean Min. Temperature (F) | 42.0 | 45.1 | 47.3 | 49.8 | 52.9 | 55.9 | 57.7 | 58.4 | 57.5 | 53.8 | 47.1 | 41.7 | 50.8 |
| Highest Mean Min. Temperature (F) | 48.8 | 49.6 | 51.9 | 55.7 | 57.0 | 62.9 | 63.0 | 63.0 | 63.3 | 58.3 | 53.2 | 49.3 | 63.3 |
| Year Highest Occurred | 1995 | 1983 | 1984 | 1985 | 1997 | 1981 | 1984 | 1983 | 1983 | 1983 | 1981 | 1983 | 1983 |
| Lowest Mean Min. Temperature (F) | 35.5 | 39.3 | 42.1 | 45.3 | 47.7 | 50.4 | 54.2 | 54.7 | 53.3 | 46.6 | 40.3 | 33.7 | 33.7 |
| Year Lowest Occurred | 1976 | 1994 | 1991 | 1975 | 1991 | 1991 | 1993 | 1992 | 1993 | 1971 | 1971 | 1990 | 1990 |
| Mean Precipitation (in.) | 2.97 | 2.89 | 2.39 | 0.94 | 0.42 | 0.12 | 0.03 | 0.07 | 0.20 | 0.90 | 1.84 | 2.08 | 14.85 |
| Highest Precipitation (in.) | 8.36 | 10.79 | 7.17 | 3.50 | 2.06 | 1.10 | 0.38 | 0.65 | 0.86 | 2.87 | 6.04 | 5.67 | 10.79 |
| Year Highest Occurred | 1995 | 1998 | 1983 | 1983 | 1998 | 1995 | 1980 | 1976 | 1982 | 1972 | 1983 | 1996 | 1998 |
| Lowest Precipitation (in.) | 0.14 | 0.16 | 0.04 | 0.05 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.01 | 0.00 | 0.00 |
| Year Lowest Occurred | 1984 | 1995 | 1972 | 1985 | 1992 | 1996 | 2000 | 1999 | 1997 | 1995 | 1995 | 1989 | 1992 |
| Heating Degree Days (F) | 471. | 331. | 290. | 197. | 129. | 52. | 19. | 7. | 35. | 82. | 280. | 474. | 2367. |
| Cooling Degree Days (F) | 0. | 1. | 6. | 15. | 42. | 79. | 112. | 115. | 118. | 40. | 2. | 0. | 530. |