| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 60.2 | 64.7 | 72.5 | 79.4 | 85.3 | 91.3 | 95.3 | 95.8 | 90.4 | 81.7 | 70.4 | 62.4 | 79.1 |
| Highest Mean Max. Temperature (F) | 69.3 | 72.7 | 77.3 | 86.0 | 91.0 | 98.0 | 100.4 | 100.7 | 95.4 | 87.4 | 77.9 | 70.1 | 100.7 |
| Year Highest Occurred | 1999 | 1999 | 1972 | 1984 | 1998 | 1998 | 1998 | 1985 | 2000 | 1991 | 1999 | 1984 | 1985 |
| Lowest Mean Max. Temperature (F) | 49.2 | 52.6 | 66.7 | 72.5 | 80.8 | 86.9 | 89.0 | 90.1 | 81.6 | 72.4 | 61.4 | 53.7 | 49.2 |
| Year Lowest Occurred | 1979 | 1978 | 1983 | 1997 | 1976 | 1987 | 1976 | 1971 | 1974 | 1976 | 1976 | 1989 | 1979 |
| Mean Temperature (F) | 47.5 | 51.6 | 59.5 | 66.5 | 73.9 | 80.0 | 82.9 | 82.8 | 77.3 | 68.4 | 57.8 | 49.7 | 66.5 |
| Highest Mean Temperature (F) | 55.6 | 60.7 | 65.2 | 71.1 | 80.3 | 86.3 | 87.4 | 86.3 | 82.2 | 71.5 | 63.7 | 58.2 | 87.4 |
| Year Highest Occurred | 1998 | 2000 | 2000 | 1972 | 1996 | 1998 | 1998 | 1999 | 1977 | 1979 | 1973 | 1984 | 1998 |
| Lowest Mean Temperature (F) | 38.5 | 41.8 | 54.4 | 61.8 | 69.1 | 77.5 | 79.0 | 79.0 | 70.7 | 60.2 | 49.9 | 40.9 | 38.5 |
| Year Lowest Occurred | 1979 | 1978 | 1996 | 1997 | 1976 | 1995 | 1976 | 1971 | 1974 | 1976 | 1976 | 1989 | 1979 |
| Mean Min. Temperature (F) | 34.7 | 38.5 | 46.4 | 53.6 | 62.5 | 68.6 | 70.5 | 69.7 | 64.2 | 55.1 | 45.2 | 37.0 | 53.8 |
| Highest Mean Min. Temperature (F) | 42.9 | 49.0 | 54.5 | 59.3 | 70.1 | 74.6 | 74.3 | 73.2 | 70.0 | 60.4 | 52.3 | 46.3 | 74.6 |
| Year Highest Occurred | 2000 | 2000 | 2000 | 1981 | 1996 | 1998 | 1998 | 1987 | 1998 | 2000 | 1994 | 1984 | 1998 |
| Lowest Mean Min. Temperature (F) | 27.2 | 30.9 | 40.3 | 48.4 | 57.3 | 65.3 | 68.3 | 65.0 | 58.4 | 48.0 | 37.6 | 28.0 | 27.2 |
| Year Lowest Occurred | 1985 | 1978 | 1978 | 1980 | 1976 | 1974 | 1974 | 1992 | 1994 | 1976 | 1993 | 1989 | 1985 |
| Mean Precipitation (in.) | 2.39 | 2.37 | 2.18 | 3.31 | 5.00 | 3.66 | 1.68 | 2.30 | 3.27 | 4.38 | 3.34 | 2.58 | 36.46 |
| Highest Precipitation (in.) | 8.12 | 9.11 | 5.30 | 13.71 | 13.10 | 19.31 | 9.60 | 8.05 | 7.54 | 20.01 | 11.04 | 13.10 | 20.01 |
| Year Highest Occurred | 1991 | 1992 | 1983 | 1977 | 1975 | 1987 | 1991 | 1974 | 1998 | 1998 | 2000 | 1991 | 1998 |
| Lowest Precipitation (in.) | 0.00 | 0.06 | 0.00 | 0.00 | 0.40 | 0.20 | 0.00 | 0.00 | 0.06 | 0.57 | 0.25 | 0.25 | 0.00 |
| Year Lowest Occurred | 1971 | 1999 | 1972 | 1983 | 1996 | 1980 | 1994 | 1993 | 1999 | 1987 | 1999 | 1989 | 1971 |
| Heating Degree Days (F) | 555. | 386. | 199. | 60. | 11. | 0. | 0. | 0. | 1. | 39. | 253. | 482. | 1986. |
| Cooling Degree Days (F) | 4. | 11. | 27. | 105. | 286. | 448. | 556. | 549. | 370. | 143. | 38. | 7. | 2544. |