When to paint a house exterior in Mount Vernon, IL
When to paint in Mount Vernon, IL
A short season: book early and expect weather delays. The painting window is August, with 1 good month a year. The best month is August, at about 13 painting days. Book a painter by June.
If you want the house done in August, call for quotes in June or earlier; a job pushed past August is likely to wait until next year. For a deck, the months with enough staining days to spare are May, Jun, Jul, Aug, Sep.
- under 1Jan
- 1Feb
- 2Mar
- 5Apr
- 9May
- 10Jun
- 9Jul
- 13Aug
- 11Sep
- 6Oct
- 1Nov
- under 1Dec
Month by month
| Month | Painting days | Staining days | With low-temp paint | Avg low / high |
|---|---|---|---|---|
| January | under 1 | under 1 | 1 | 25° / 42°F |
| February | 1 | 1 | 4 | 27° / 48°F |
| March | 2 | 2 | 8 | 36° / 58°F |
| April | 5 | 3 | 13 | 44° / 69°F |
| May | 9 | 7 | 15 | 54° / 78°F |
| June | 10 | 8 | 11 | 62° / 88°F |
| July | 9 | 5 | 9 | 66° / 90°F |
| August | 13 | 9 | 14 | 64° / 87°F |
| September | 11 | 10 | 16 | 57° / 85°F |
| October | 6 | 4 | 14 | 45° / 72°F |
| November | 1 | 1 | 7 | 34° / 57°F |
| December | under 1 | under 1 | 3 | 29° / 49°F |
Deck stain does best in September. Low-temperature paint adds about 47 days a year here.
Towns near Mount Vernon compared
4 of the 6 nearest places get more painting days, the most in Herrin (116 a year, 36 miles south). A gap like that between towns is usually elevation, a coast or a lake, which is why a painter from a few towns over can be on a different schedule.
| Place | From Mount Vernon | Painting days a year | Window | Station |
|---|---|---|---|---|
| Centralia, IL | 18 mi northwest | 73 | August to September | Centralia Municipal Airport |
| Herrin, IL | 36 mi south | 116 | May to September | Williamson County Rgnl Airport |
| Marion, IL | 40 mi south | 116 | May to September | Williamson County Rgnl Airport |
| Carbondale, IL | 44 mi south | 84 | May to June | Southern Illinois Airport |
| Highland, IL | 52 mi northwest | 70 | August to September | Scott Air Force Base/Midameri |
| Shiloh, IL | 56 mi west | 70 | August to September | Scott Air Force Base/Midameri |
How Mount Vernon ranks in IL
Of 225 IL places with 10,000 people or more, Mount Vernon (population 14,162, 174th largest) ranks 221st for painting days, 10 days below the state median of 77. The longest season in the state is Chicago, 131 days, 252 miles north. The shortest is Woodstock at 65. Switching to low-temperature paint here is worth 47 extra days, more than most of the summer months on their own.
Where these numbers come from
Daily records from Mount Vernon Airport (3.3 miles away), 2015 to 2024, NOAA Global Summary of the Day. A month is good at 12+ painting days and possible at 6+.