| Month | Normal Minimum Temperature | Extreme Minimum Temperature* | Most Recent Date of Occurrence |
|---|---|---|---|
| January | 23.4 | -7 | 1/22/84 |
| February | 25.9 | -3 | 2/10/79 |
| March | 34.1 | 6 | 3/11/60 |
| April | 42.5 | 20 | 4/4/65 |
| May | 52.6 | 32 | 5/11/66 |
| June | 61.8 | 40 | 6/11/96 |
| July | 66.8 | 50 | 7/1/88 |
| August | 65.7 | 45 | 8/30/86 |
| September | 58.4 | 35 | 9/25/63 |
| October | 45.9 | 25 | 10/24/69 |
| November | 37.1 | 13 | 11/29/55 |
| December | 28.2 | 0 | 12/25/83 |
*Extreme Minimum Temperatures from 1948 through 1998.