| Month | Average High (°F) |
Average Low (°F) |
Mean Temp. (°F) |
Heating Degree Days |
Cooling Degree Days |
Average Precip. (in.) |
Average Snow (in.) |
|---|---|---|---|---|---|---|---|
| January | 33.6 | 17.6 | 25.6 | 1221 | 0 | 2.06 | 7.7 |
| February | 38.7 | 21.4 | 30.0 | 978 | 0 | 1.99 | 6.9 |
| March | 51.2 | 31.6 | 41.4 | 734 | 2 | 2.69 | 3.3 |
| April | 63.7 | 41.4 | 52.9 | 376 | 12 | 3.99 | 0.5 |
| May | 74.2 | 52.8 | 63.5 | 135 | 88 | 4.69 | 0 |
| June | 83.2 | 62.4 | 72.8 | 13 | 247 | 3.73 | 0 |
| July | 86.3 | 66.3 | 76.3 | 1 | 351 | 3.53 | 0 |
| August | 84.6 | 64.4 | 74.5 | 3 | 297 | 3.31 | 0 |
| September | 78.4 | 56.3 | 67.4 | 66 | 137 | 3.48 | 0 |
| October | 65.4 | 44.4 | 54.9 | 335 | 22 | 3.17 | 0.1 |
| November | 50.8 | 33.0 | 41.9 | 694 | 1 | 2.70 | 1.5 |
| December | 38.5 | 23.2 | 30.9 | 1058 | 0 | 2.21 | 6.2 |
| Annual | 62.4 | 43.0 | 52.7 | 5614 | 1157 | 37.55 | 26.2 |
| Average date of first measurable snow | November 26 |
| Average date of last measurable snow | March 21 |
| Average number of days with measurable snow | 19.6 |
| Average number of days with at least 1" of snow | 8.0 |
Period used for normals: 1991-2020
Follow us on Twitter
Follow us on Facebook
Follow us on YouTube
ILX RSS Feed