| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 54.3 | 62.2 | 67.5 | 74.1 | 81.5 | 88.7 | 93.6 | 92.3 | 87.9 | 78.4 | 64.1 | 54.3 | 74.9 |
| Highest Mean Max. Temperature (F) | 59.1 | 67.5 | 74.4 | 81.8 | 87.7 | 95.6 | 98.3 | 95.9 | 93.8 | 83.4 | 73.2 | 59.5 | 98.3 |
| Year Highest Occurred | 1976 | 1988 | 1972 | 1987 | 1992 | 1981 | 1988 | 1998 | 1984 | 1991 | 1995 | 1976 | 1988 |
| Lowest Mean Max. Temperature (F) | 47.9 | 58.6 | 60.6 | 67.4 | 71.6 | 82.9 | 89.3 | 86.1 | 82.1 | 73.5 | 58.2 | 47.0 | 47.0 |
| Year Lowest Occurred | 1972 | 1998 | 1991 | 1975 | 1998 | 1998 | 1987 | 1976 | 1986 | 1984 | 1982 | 1985 | 1985 |
| Mean Temperature (F) | 47.2 | 52.9 | 56.9 | 61.7 | 67.7 | 73.7 | 77.7 | 76.7 | 73.1 | 65.3 | 54.2 | 46.6 | 62.8 |
| Highest Mean Temperature (F) | 53.0 | 56.4 | 61.4 | 66.7 | 73.4 | 79.5 | 81.8 | 80.6 | 78.2 | 70.4 | 61.3 | 52.0 | 81.8 |
| Year Highest Occurred | 1995 | 1992 | 1978 | 1987 | 1997 | 1981 | 1988 | 1998 | 1984 | 1991 | 1995 | 1995 | 1988 |
| Lowest Mean Temperature (F) | 41.7 | 48.8 | 51.9 | 55.5 | 61.4 | 69.6 | 73.9 | 72.0 | 67.8 | 61.1 | 48.8 | 42.0 | 41.7 |
| Year Lowest Occurred | 1972 | 1971 | 1973 | 1975 | 1998 | 1980 | 1987 | 1976 | 1986 | 1971 | 2000 | 1985 | 1972 |
| Mean Min. Temperature (F) | 40.1 | 43.6 | 46.2 | 49.2 | 53.8 | 58.7 | 61.7 | 61.1 | 58.2 | 52.1 | 44.2 | 38.9 | 50.7 |
| Highest Mean Min. Temperature (F) | 47.4 | 48.4 | 51.4 | 53.1 | 59.4 | 63.4 | 66.1 | 65.3 | 62.5 | 57.3 | 49.9 | 46.6 | 66.1 |
| Year Highest Occurred | 1995 | 1996 | 1978 | 1992 | 1997 | 1981 | 1996 | 1998 | 1984 | 1991 | 1997 | 1983 | 1996 |
| Lowest Mean Min. Temperature (F) | 35.1 | 39.0 | 41.1 | 43.5 | 49.6 | 54.8 | 58.4 | 57.9 | 53.4 | 46.5 | 38.6 | 33.3 | 33.3 |
| Year Lowest Occurred | 1976 | 1971 | 1977 | 1975 | 1977 | 1980 | 1987 | 1976 | 1986 | 1971 | 2000 | 1999 | 1999 |
| Mean Precipitation (in.) | 2.56 | 2.38 | 2.30 | 0.91 | 0.55 | 0.13 | 0.05 | 0.06 | 0.27 | 0.75 | 1.48 | 1.68 | 13.12 |
| Highest Precipitation (in.) | 7.27 | 8.80 | 6.49 | 2.86 | 3.95 | 1.14 | 0.69 | 0.72 | 2.19 | 2.43 | 4.64 | 4.51 | 8.80 |
| Year Highest Occurred | 1995 | 1998 | 1982 | 1978 | 1998 | 2000 | 1974 | 1976 | 1983 | 1973 | 1983 | 1996 | 1998 |
| Lowest Precipitation (in.) | 0.12 | 0.08 | 0.00 | 0.07 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.01 | 0.01 | 0.00 |
| Year Lowest Occurred | 1991 | 1997 | 1988 | 1992 | 1992 | 1999 | 2000 | 2000 | 1998 | 1995 | 1995 | 1989 | 1988 |
| Heating Degree Days (F) | 551. | 339. | 267. | 140. | 62. | 6. | 0. | 0. | 7. | 85. | 331. | 570. | 2358. |
| Cooling Degree Days (F) | 0. | 0. | 16. | 41. | 145. | 266. | 393. | 362. | 248. | 93. | 6. | 0. | 1570. |