| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 54.1 | 60.5 | 65.3 | 71.6 | 78.4 | 85.6 | 91.2 | 90.5 | 86.6 | 78.0 | 64.3 | 54.8 | 73.4 |
| Highest Mean Max. Temperature (F) | 59.2 | 66.1 | 72.3 | 78.7 | 87.1 | 92.6 | 96.5 | 95.7 | 91.6 | 84.5 | 71.7 | 59.9 | 96.5 |
| Year Highest Occurred | 2000 | 1991 | 1972 | 1987 | 1997 | 1981 | 1996 | 1992 | 1991 | 1991 | 1995 | 1999 | 1996 |
| Lowest Mean Max. Temperature (F) | 47.6 | 56.4 | 59.6 | 64.1 | 69.4 | 77.7 | 84.4 | 83.6 | 80.0 | 73.0 | 57.7 | 46.9 | 46.9 |
| Year Lowest Occurred | 1985 | 1971 | 1973 | 1975 | 1998 | 1998 | 1987 | 1976 | 1986 | 1972 | 1972 | 1985 | 1985 |
| Mean Temperature (F) | 45.3 | 50.6 | 55.4 | 60.4 | 66.3 | 72.3 | 77.2 | 76.7 | 73.2 | 65.4 | 53.9 | 45.4 | 61.8 |
| Highest Mean Temperature (F) | 50.8 | 54.4 | 60.8 | 65.5 | 73.6 | 79.1 | 82.1 | 80.5 | 77.7 | 70.4 | 60.0 | 50.8 | 82.1 |
| Year Highest Occurred | 1995 | 1991 | 1972 | 1987 | 1997 | 1981 | 1996 | 1992 | 1984 | 1991 | 1995 | 1995 | 1996 |
| Lowest Mean Temperature (F) | 39.1 | 46.8 | 51.4 | 54.0 | 60.5 | 67.0 | 71.3 | 72.4 | 68.0 | 61.6 | 49.2 | 40.1 | 39.1 |
| Year Lowest Occurred | 1972 | 1989 | 1973 | 1975 | 1998 | 1998 | 1987 | 1976 | 1986 | 1971 | 1994 | 1985 | 1972 |
| Mean Min. Temperature (F) | 36.4 | 40.7 | 45.4 | 49.2 | 54.2 | 58.9 | 63.2 | 62.9 | 59.8 | 52.7 | 43.5 | 35.9 | 50.2 |
| Highest Mean Min. Temperature (F) | 44.1 | 46.0 | 49.9 | 52.3 | 60.1 | 65.7 | 67.6 | 66.2 | 63.8 | 56.3 | 48.6 | 42.0 | 67.6 |
| Year Highest Occurred | 1995 | 1996 | 1978 | 1990 | 1997 | 1981 | 1996 | 1998 | 1984 | 1991 | 1997 | 1995 | 1996 |
| Lowest Mean Min. Temperature (F) | 30.3 | 36.2 | 41.5 | 43.9 | 51.0 | 55.5 | 58.1 | 59.4 | 56.1 | 48.7 | 39.1 | 29.3 | 29.3 |
| Year Lowest Occurred | 1972 | 1990 | 1985 | 1975 | 1991 | 1982 | 1987 | 1980 | 1986 | 1971 | 1994 | 1990 | 1990 |
| Mean Precipitation (in.) | 2.10 | 2.11 | 1.74 | 0.55 | 0.49 | 0.05 | 0.03 | 0.10 | 0.23 | 0.54 | 1.25 | 1.33 | 10.52 |
| Highest Precipitation (in.) | 5.91 | 9.03 | 5.07 | 1.75 | 6.56 | 0.36 | 0.40 | 1.88 | 2.07 | 2.10 | 5.53 | 3.92 | 9.03 |
| Year Highest Occurred | 1997 | 1998 | 1995 | 1998 | 1998 | 1982 | 1974 | 1983 | 1976 | 2000 | 1972 | 1996 | 1998 |
| Lowest Precipitation (in.) | 0.17 | 0.13 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.05 | 0.00 |
| Year Lowest Occurred | 1976 | 1997 | 1972 | 1992 | 1992 | 1999 | 2000 | 2000 | 1999 | 1995 | 1995 | 1999 | 1972 |
| Heating Degree Days (F) | 613. | 403. | 306. | 175. | 81. | 17. | 1. | 0. | 5. | 78. | 337. | 609. | 2625. |
| Cooling Degree Days (F) | 0. | 0. | 6. | 37. | 121. | 234. | 379. | 364. | 251. | 89. | 5. | 0. | 1486. |