| Data Type* | January 1 | April 1 | July 1 | October 1 |
|---|---|---|---|---|
| Record high | 62 | 83 | 100 | 88 |
| Average high | 39 | 56 | 82 | 69 |
| Average low | 28 | 39 | 67 | 55 |
| Record low | −4 | 12 | 52 | 36 |
| * Temperatures are averages for the date shown for the 30-year period 1971–2000; record temperatures are those for the period 1869–2011. | ||||