1971-2000 NCDC Normals
| Element | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN |
| Max °F | 21.8 | 29.5 | 41.0 | 57.2 | 70.7 | 78.0 | 81.6 | 79.3 | 70.1 | 58.3 | 39.4 | 25.5 | 54.4 |
| Min °F | 0.0 | 6.4 | 18.8 | 31.5 | 43.4 | 52.2 | 57.2 | 55.1 | 46.7 | 36.0 | 22.7 | 7.2 | 31.4 |
| Mean °F | 10.9 | 18.0 | 29.9 | 44.4 | 57.1 | 65.1 | 69.4 | 67.2 | 58.4 | 47.2 | 31.1 | 16.4 | 42.9 |
| HDD base 65 |
1678 | 1317 | 1088 | 621 | 286 | 83 | 27 | 53 | 218 | 555 | 1018 | 1508 | 8452 |
| CDD base 65 |
0 | 0 | 0 | 1 | 38 | 85 | 164 | 121 | 20 | 0 | 0 | 0 | 429 |
| Month | High Mean°F |
Year | Low Mean°F |
Year | 1-Day Max°F |
Date | 1-Day Min°F |
Date |
| JAN | 23.4 | 1990 | -7.3 | 1912 | 57 | 01-25-1973 | -45 | 01-23-1935 |
| FEB | 31.2 | 1998 | -2.1 | 1936 | 61 | 02-29-2000 | -46 | 02-16-1936 |
| MAR | 41.2 | 1910 | 15.3 | 1899 | 81 | 03-28-1946 | -38 | 03-01-1962 |
| APR | 52.9 | 1915 | 34.0 | 1950 | 90 | 04-29-1952 | -6 | 04-01-1924 |
| MAY | 64.7 | 1977 | 44.6 | 1907 | 104 | 05-31-1934 | 13 | 05-04-1907 |
| JUN | 73.6 | 1933 | 57.8 | 1969 | 100 | 06-26-1900 | 22 | 06-01-1897 |
| JUL | 77.2 | 1936 | 63.1 | 1992 | 110 | 07-11-1936 | 35 | 07-25-1899 |
| AUG | 75.1 | 1947 | 61.6 | 1915 | 104 | 08-04-1947 | 29 | 08-28-1934 |
| SEP | 65.0 | 1897 | 51.2 | 1965 | 99 | 09-02-1898 | 18 | 09-25-1947 |
| OCT | 57.0 | 1947 | 35.8 | 1925 | 88 | 10-01-1897 | 2 | 10-25-1933 |
| NOV | 44.1 | 2001 | 21.0 | 1911 | 74 | 11-03-1978 | -26 | 11-24-1898 |
| DEC | 28.2 | 1931 | 3.6 | 1983 | 60 | 12-02-1998 | -44 | 12-19-1983 |
| Annual | 47.8 | 1931 | 37.0 | 1905 | 110 | 07-11-1936 | -46 | 02-16-1936 |
| Winter | 24.8 | 1998 | 5.6 | 1917 | 61 | 02-29-1900 | -46 | 02-16-1936 |
| Spring | 50.3 | 1977 | 35.6 | 1907 | 104 | 05-31-1934 | -38 | 03-01-1962 |
| Summer | 71.4 | 1988 | 61.6 | 1915 | 110 | 07-11-1936 | 22 | 06-01-1997 |
| Fall | 52.0 | 1931 | 39.7 | 1911 | 99 | 09-02-1998 | -26 | 11-24-1998 |
| Month | # Days Max ≥ 90°F |
# Days Max ≤ 32°F |
# Days Min ≤ 32°F |
# Days Min ≤ 0°F |
| JAN | 0.0 | 25.4 | 30.9 | 15.2 |
| FEB | 0.0 | 16.5 | 27.5 | 10.0 |
| MAR | 0.0 | 6.9 | 27.0 | 3.6 |
| APR | 0.0 | 0.6 | 16.5 | 0.1 |
| MAY | 0.0 | 0.0 | 4.9 | 0.0 |
| JUN | 1.1 | 0.0 | 0.3 | 0.0 |
| JUL | 2.6 | 0.0 | 0.0 | 0.0 |
| AUG | 1.1 | 0.0 | 0.0 | 0.0 |
| SEP | 0.1 | 0.0 | 2.3 | 0.0 |
| OCT | 0.0 | 0.1 | 12.0 | 0.0 |
| NOV | 0.0 | 8.9 | 25.2 | 1.2 |
| DEC | 0.0 | 22.6 | 30.7 | 10.0 |
| Annual | 5.0 | 80.9 | 177.0 | 40.3 |
| Winter | 0.0 | 64.4 | 89.0 | 35.2 |
| Spring | 0.1 | 7.5 | 48.4 | 3.7 |
| Summer | 4.8 | 0.0 | 0.3 | 0.0 |
| Fall | 0.1 | 8.8 | 39.2 | 1.2 |