| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 53.5 | 59.9 | 64.6 | 71.1 | 78.5 | 85.6 | 90.7 | 89.8 | 85.9 | 77.5 | 63.9 | 54.3 | 72.9 |
| Highest Mean Max. Temperature (F) | 59.2 | 64.4 | 69.8 | 77.4 | 86.1 | 93.3 | 96.2 | 94.5 | 91.7 | 82.9 | 71.2 | 59.6 | 96.2 |
| Year Highest Occurred | 1976 | 1991 | 1997 | 1987 | 1992 | 1981 | 1988 | 1996 | 1984 | 1991 | 1995 | 1999 | 1988 |
| Lowest Mean Max. Temperature (F) | 46.7 | 56.0 | 60.0 | 64.0 | 67.9 | 79.6 | 85.3 | 83.5 | 79.9 | 72.5 | 56.6 | 47.8 | 46.7 |
| Year Lowest Occurred | 1985 | 1989 | 1991 | 1975 | 1998 | 1998 | 1987 | 1976 | 1986 | 1984 | 1982 | 1985 | 1985 |
| Mean Temperature (F) | 45.7 | 50.6 | 54.5 | 59.2 | 65.2 | 71.1 | 74.4 | 73.7 | 71.0 | 64.3 | 53.8 | 45.7 | 60.8 |
| Highest Mean Temperature (F) | 51.4 | 54.7 | 58.2 | 64.2 | 71.9 | 77.5 | 79.8 | 77.5 | 75.6 | 69.2 | 59.8 | 51.9 | 79.8 |
| Year Highest Occurred | 1995 | 1991 | 1993 | 1987 | 1997 | 1981 | 1988 | 1992 | 1984 | 1991 | 1995 | 1995 | 1988 |
| Lowest Mean Temperature (F) | 39.1 | 47.2 | 50.3 | 51.8 | 59.1 | 65.6 | 70.4 | 69.9 | 67.1 | 58.6 | 48.3 | 40.3 | 39.1 |
| Year Lowest Occurred | 1972 | 1971 | 1985 | 1975 | 1998 | 1982 | 1975 | 1980 | 1986 | 1971 | 1982 | 1972 | 1972 |
| Mean Min. Temperature (F) | 37.8 | 41.3 | 44.3 | 47.2 | 51.9 | 56.5 | 58.1 | 57.6 | 56.0 | 51.1 | 43.6 | 37.1 | 48.5 |
| Highest Mean Min. Temperature (F) | 46.1 | 46.2 | 48.6 | 51.9 | 58.7 | 62.8 | 63.4 | 61.8 | 60.4 | 56.1 | 48.7 | 44.3 | 63.4 |
| Year Highest Occurred | 1995 | 1986 | 1993 | 1990 | 1997 | 1993 | 1988 | 1990 | 1997 | 1992 | 1997 | 1995 | 1988 |
| Lowest Mean Min. Temperature (F) | 30.9 | 35.6 | 39.9 | 39.6 | 47.5 | 50.9 | 53.5 | 53.0 | 50.3 | 42.4 | 38.5 | 31.0 | 30.9 |
| Year Lowest Occurred | 1972 | 1974 | 1975 | 1975 | 1975 | 1982 | 1975 | 1980 | 1972 | 1971 | 1971 | 1976 | 1972 |
| Mean Precipitation (in.) | 2.72 | 2.51 | 2.16 | 0.73 | 0.47 | 0.09 | 0.03 | 0.03 | 0.24 | 0.76 | 1.70 | 1.89 | 13.33 |
| Highest Precipitation (in.) | 6.97 | 9.03 | 6.26 | 3.31 | 2.09 | 0.64 | 0.46 | 0.74 | 1.84 | 4.17 | 4.56 | 5.05 | 9.03 |
| Year Highest Occurred | 1993 | 1998 | 1983 | 1983 | 1998 | 1995 | 1980 | 1976 | 1989 | 1972 | 1972 | 1995 | 1998 |
| Lowest Precipitation (in.) | 0.13 | 0.06 | 0.06 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1984 | 1995 | 1972 | 1997 | 1999 | 1999 | 2000 | 2000 | 1997 | 1995 | 1995 | 1989 | 1997 |
| Heating Degree Days (F) | 600. | 404. | 332. | 206. | 99. | 18. | 4. | 1. | 10. | 99. | 344. | 597. | 2714. |
| Cooling Degree Days (F) | 0. | 0. | 4. | 30. | 106. | 200. | 296. | 270. | 190. | 77. | 6. | 0. | 1179. |