When to paint a house exterior in Oswego, IL
When to paint in Oswego, 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.
- under 1Jan
- under 1Feb
- under 1Mar
- 2Apr
- 8May
- 12Jun
- 17Jul
- 18Aug
- 13Sep
- 4Oct
- 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 | 17° / 32°F |
| February | under 1 | under 1 | 1 | 18° / 37°F |
| March | under 1 | under 1 | 4 | 30° / 49°F |
| April | 2 | 2 | 10 | 38° / 61°F |
| May | 8 | 7 | 14 | 50° / 74°F |
| June | 12 | 9 | 15 | 60° / 84°F |
| July | 17 | 10 | 17 | 63° / 84°F |
| August | 18 | 14 | 19 | 60° / 83°F |
| September | 13 | 11 | 19 | 55° / 79°F |
| October | 4 | 3 | 13 | 43° / 65°F |
| November | 1 | 1 | 5 | 31° / 50°F |
| December | under 1 | under 1 | 1 | 24° / 39°F |
Deck stain does best in August. Low-temperature paint adds about 44 days a year here.
Towns near Oswego compared
Every one of the 6 closest places lands within three days of Oswego's 73 a year, so the season here is the regional season. Montgomery, Yorkville, Aurora, North Aurora, Plano are read from the same station as Oswego, so their numbers match; the real difference is the distance from that station.
| Place | From Oswego | Painting days a year | Window | Station |
|---|---|---|---|---|
| Montgomery, IL | 3 mi north | 73 | July to September | same station |
| Yorkville, IL | 5 mi west | 73 | July to September | same station |
| Aurora, IL | 6 mi northeast | 73 | July to September | same station |
| Plainfield, IL | 7 mi southeast | 74 | July to September | Lewis University Airport |
| North Aurora, IL | 9 mi north | 73 | July to September | same station |
| Plano, IL | 10 mi west | 73 | July to September | same station |
How Oswego ranks in IL
Of 225 IL places with 10,000 people or more, Oswego (population 38,778, 45th largest) ranks 188th for painting days, 4 days below the state median of 77. The longest season in the state is Chicago, 131 days, 35 miles east. The shortest is Woodstock at 65. Switching to low-temperature paint here is worth 44 extra days, more than most of the summer months on their own.
Where these numbers come from
Daily records from Aurora Municipal Airport (9.5 miles away), 2015 to 2024, NOAA Global Summary of the Day. A month is good at 12+ painting days and possible at 6+.