| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 66.0 | 67.3 | 68.2 | 70.9 | 71.2 | 73.7 | 75.4 | 76.7 | 77.8 | 76.4 | 71.1 | 66.7 | 71.8 |
| Highest Mean Max. Temperature (F) | 71.1 | 74.0 | 74.8 | 77.8 | 79.6 | 79.6 | 79.7 | 82.1 | 86.7 | 82.0 | 77.4 | 72.8 | 86.7 |
| Year Highest Occurred | 1986 | 1988 | 1988 | 1989 | 1997 | 1981 | 1983 | 1997 | 1984 | 1983 | 1989 | 1989 | 1984 |
| Lowest Mean Max. Temperature (F) | 60.6 | 62.8 | 62.7 | 64.8 | 65.8 | 67.4 | 69.8 | 70.8 | 71.9 | 69.3 | 65.6 | 61.1 | 60.6 |
| Year Lowest Occurred | 1979 | 1975 | 1973 | 1975 | 1999 | 1999 | 2000 | 1999 | 1999 | 2000 | 1994 | 1971 | 1979 |
| Mean Temperature (F) | 53.7 | 55.3 | 56.4 | 58.3 | 60.0 | 62.6 | 64.5 | 65.6 | 65.7 | 63.0 | 57.6 | 53.5 | 59.7 |
| Highest Mean Temperature (F) | 58.5 | 60.0 | 60.3 | 64.1 | 64.5 | 65.7 | 67.4 | 69.0 | 72.5 | 67.5 | 62.0 | 57.9 | 72.5 |
| Year Highest Occurred | 1986 | 1995 | 1988 | 1989 | 1992 | 1981 | 1992 | 1983 | 1984 | 1987 | 1976 | 1977 | 1984 |
| Lowest Mean Temperature (F) | 49.2 | 50.5 | 51.4 | 53.7 | 56.7 | 59.0 | 60.5 | 62.5 | 62.6 | 58.2 | 52.5 | 48.5 | 48.5 |
| Year Lowest Occurred | 1979 | 1979 | 1977 | 1975 | 1999 | 1999 | 1971 | 1999 | 1974 | 1971 | 1994 | 1978 | 1978 |
| Mean Min. Temperature (F) | 41.4 | 43.3 | 44.5 | 45.6 | 48.7 | 51.5 | 53.5 | 54.5 | 53.6 | 49.6 | 44.0 | 40.2 | 47.5 |
| Highest Mean Min. Temperature (F) | 47.7 | 48.4 | 49.1 | 50.3 | 54.8 | 54.9 | 57.6 | 58.1 | 58.4 | 56.5 | 49.9 | 46.6 | 58.4 |
| Year Highest Occurred | 1995 | 1992 | 1978 | 1990 | 1992 | 1992 | 1992 | 1998 | 1983 | 1987 | 1997 | 1977 | 1983 |
| Lowest Mean Min. Temperature (F) | 36.1 | 37.8 | 37.4 | 41.7 | 46.1 | 47.9 | 49.1 | 50.8 | 49.3 | 43.2 | 38.1 | 33.0 | 33.0 |
| Year Lowest Occurred | 1975 | 1979 | 1977 | 1971 | 1986 | 1979 | 1978 | 1979 | 1979 | 1971 | 1978 | 1978 | 1978 |
| Mean Precipitation (in.) | 3.20 | 3.64 | 3.38 | 0.93 | 0.31 | 0.04 | 0.01 | 0.05 | 0.24 | 0.48 | 1.34 | 2.23 | 15.85 |
| Highest Precipitation (in.) | 15.37 | 15.40 | 11.63 | 3.55 | 2.54 | 0.70 | 0.08 | 0.57 | 2.67 | 2.07 | 5.06 | 5.42 | 15.40 |
| Year Highest Occurred | 1995 | 1998 | 1991 | 1983 | 1977 | 1995 | 1997 | 1976 | 1976 | 2000 | 1985 | 1971 | 1998 |
| Lowest Precipitation (in.) | 0.00 | 0.03 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1976 | 1997 | 1997 | 1985 | 2000 | 1999 | 2000 | 2000 | 1999 | 1999 | 2000 | 1989 | 1976 |
| Heating Degree Days (F) | 350. | 272. | 260. | 215. | 170. | 98. | 71. | 48. | 64. | 105. | 237. | 360. | 2250. |
| Cooling Degree Days (F) | 0. | 2. | 7. | 12. | 13. | 25. | 54. | 66. | 84. | 44. | 14. | 1. | 322. |