When to paint a house exterior in Ontario, OR
When to paint in Ontario, OR
Exterior painting here is a gamble in any month. The painting window is June, and even that is thin, with 0 good months a year. The best month is June, at about 8 painting days. Book a painter by April.
If you want the house done in June, call for quotes in April or earlier; a job pushed past June is likely to wait until next year. For a deck, the months with enough staining days to spare are Jun, Sep.
- under 1Jan
- under 1Feb
- under 1Mar
- 1Apr
- 5May
- 8Jun
- 2Jul
- 4Aug
- 5Sep
- 1Oct
- under 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 | 23° / 40°F |
| February | under 1 | under 1 | 1 | 26° / 48°F |
| March | under 1 | under 1 | 5 | 32° / 60°F |
| April | 1 | 1 | 14 | 37° / 69°F |
| May | 5 | 4 | 20 | 46° / 79°F |
| June | 8 | 5 | 11 | 54° / 89°F |
| July | 2 | 1 | 3 | 61° / 98°F |
| August | 4 | 3 | 5 | 59° / 95°F |
| September | 5 | 5 | 20 | 48° / 85°F |
| October | 1 | 1 | 15 | 37° / 69°F |
| November | under 1 | under 1 | 3 | 28° / 52°F |
| December | under 1 | under 1 | under 1 | 24° / 40°F |
Deck stain does best in June. Low-temperature paint adds about 71 days a year here.
Towns near Ontario compared
3 of the 6 nearest places get more painting days, the most in Eagle (60 a year, 36 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.
| Place | From Ontario | Painting days a year | Window | Station |
|---|---|---|---|---|
| Middleton, ID | 28 mi southeast | 29 | June | Caldwell Industrial Airport |
| Caldwell, ID | 31 mi southeast | 29 | June | Caldwell Industrial Airport |
| Star, ID | 33 mi southeast | 29 | June | Caldwell Industrial Airport |
| Eagle, ID | 36 mi southeast | 60 | May to June | Nampa Municipal Airport |
| Nampa, ID | 37 mi southeast | 60 | May to June | Nampa Municipal Airport |
| Meridian, ID | 41 mi southeast | 60 | May to June | Nampa Municipal Airport |
How Ontario ranks in OR
Of 57 OR places with 10,000 people or more, Ontario (population 11,957, 44th largest) ranks 51st for painting days, 26 days below the state median of 52. The longest season in the state is Portland, 87 days, 297 miles northwest. The shortest is Klamath Falls at 5. Switching to low-temperature paint here is worth 71 extra days, more than most of the summer months on their own.
Where these numbers come from
Daily records from Ontario Municipal Airport (1.8 miles away), 2015 to 2024, NOAA Global Summary of the Day. A month is good at 12+ painting days and possible at 6+.