When to paint a house exterior in Washington, IL
When to paint in Washington, IL
A normal season: plan the job, do not leave it late. The painting window is July to September, with 3 good months a year. The best month is August, at about 18 painting days. Book a painter by May.
If you want the house done in July to September, call for quotes in May or earlier; a job pushed past September is likely to wait until next year. For a deck, the months with enough staining days to spare are May, Jun, Jul, Aug, Sep, Oct.
- under 1Jan
- under 1Feb
- under 1Mar
- 3Apr
- 9May
- 11Jun
- 13Jul
- 18Aug
- 15Sep
- 5Oct
- 1Nov
- under 1Dec
Month by month
| Month | Painting days | Staining days | With low-temp paint | Avg low / high |
|---|---|---|---|---|
| January | under 1 | under 1 | under 1 | 19° / 36°F |
| February | under 1 | under 1 | 1 | 20° / 43°F |
| March | under 1 | under 1 | 5 | 32° / 56°F |
| April | 3 | 2 | 11 | 40° / 66°F |
| May | 9 | 7 | 16 | 53° / 78°F |
| June | 11 | 8 | 12 | 62° / 87°F |
| July | 13 | 9 | 13 | 66° / 88°F |
| August | 18 | 14 | 18 | 64° / 86°F |
| September | 15 | 15 | 18 | 58° / 83°F |
| October | 5 | 4 | 16 | 45° / 70°F |
| November | 1 | 1 | 6 | 33° / 55°F |
| December | under 1 | under 1 | 1 | 25° / 45°F |
Deck stain does best in September. Low-temperature paint adds about 41 days a year here.
Towns near Washington compared
2 of the 6 nearest places get more painting days, the most in Normal (84 a year, 26 miles southeast). 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. East Peoria, Morton, Peoria, Pekin are read from the same station as Washington, so their numbers match; the real difference is the distance from that station.
| Place | From Washington | Painting days a year | Window | Station |
|---|---|---|---|---|
| East Peoria, IL | 6 mi west | 76 | July to September | same station |
| Morton, IL | 7 mi south | 76 | July to September | same station |
| Peoria, IL | 10 mi west | 76 | July to September | same station |
| Pekin, IL | 14 mi southwest | 76 | July to September | same station |
| Normal, IL | 26 mi southeast | 84 | June to September | Central Illinois Regional Air |
| Bloomington, IL | 29 mi southeast | 84 | June to September | Central Illinois Regional Air |
How Washington ranks in IL
Of 225 IL places with 10,000 people or more, Washington (population 15,857, 158th largest) ranks 147th for painting days, 1 day below the state median of 77. The longest season in the state is Chicago, 131 days, 120 miles northeast. The shortest is Woodstock at 65. Switching to low-temperature paint here is worth 41 extra days, more than most of the summer months on their own.
Where these numbers come from
Daily records from Greater Peoria Regional Airport (13.4 miles away), 2015 to 2024, NOAA Global Summary of the Day. A month is good at 12+ painting days and possible at 6+.