When to paint a house exterior in Riverdale, IL
When to paint in Riverdale, IL
A normal season: plan the job, do not leave it late. The painting window is June to September, with 4 good months a year. The best month is July, at about 19 painting days. Book a painter by April.
If you want the house done in June to September, call for quotes in April 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
- 1Apr
- 6May
- 12Jun
- 19Jul
- 18Aug
- 15Sep
- 4Oct
- 1Nov
- under 1Dec
Month by month
| Month | Painting days | Staining days | With low-temp paint | Avg low / high |
|---|---|---|---|---|
| January | under 1 | under 1 | 1 | 20° / 34°F |
| February | under 1 | under 1 | 1 | 23° / 41°F |
| March | under 1 | under 1 | 3 | 31° / 49°F |
| April | 1 | 1 | 8 | 39° / 61°F |
| May | 6 | 6 | 13 | 50° / 71°F |
| June | 12 | 10 | 15 | 60° / 82°F |
| July | 19 | 13 | 19 | 64° / 84°F |
| August | 18 | 14 | 19 | 62° / 83°F |
| September | 15 | 13 | 19 | 57° / 78°F |
| October | 4 | 4 | 13 | 45° / 65°F |
| November | 1 | 1 | 6 | 34° / 52°F |
| December | under 1 | under 1 | 1 | 27° / 42°F |
Deck stain does best in August. Low-temperature paint adds about 41 days a year here.
Towns near Riverdale compared
2 of the 6 nearest places get more painting days, the most in Blue Island (89 a year, 3 miles northwest). 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. Dolton, Harvey, South Holland, Markham are read from the same station as Riverdale, so their numbers match; the real difference is the distance from that station.
| Place | From Riverdale | Painting days a year | Window | Station |
|---|---|---|---|---|
| Dolton, IL | 2 mi southeast | 76 | June to September | same station |
| Blue Island, IL | 3 mi northwest | 89 | June to September | Chicago Midway International Airport |
| Harvey, IL | 3 mi south | 76 | June to September | same station |
| South Holland, IL | 4 mi southeast | 76 | June to September | same station |
| Markham, IL | 4 mi southwest | 76 | June to September | same station |
| Midlothian, IL | 5 mi west | 89 | June to September | Chicago Midway International Airport |
How Riverdale ranks in IL
Of 225 IL places with 10,000 people or more, Riverdale (population 10,299, 221st largest) ranks 164th for painting days, 1 day below the state median of 77. The longest season in the state is Chicago, 131 days, 14 miles north. 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 Lansing Municipal Airport (8.9 miles away), 2015 to 2024, NOAA Global Summary of the Day. A month is good at 12+ painting days and possible at 6+.