When to paint a house exterior in Cornelius, OR
When to paint in Cornelius, OR
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 12 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 Jun, Jul, Aug, Sep.
- under 1Jan
- under 1Feb
- under 1Mar
- under 1Apr
- 4May
- 5Jun
- 12Jul
- 12Aug
- 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 | 33° / 49°F |
| February | under 1 | under 1 | 1 | 33° / 51°F |
| March | under 1 | under 1 | 4 | 35° / 57°F |
| April | under 1 | under 1 | 10 | 38° / 64°F |
| May | 4 | 3 | 19 | 45° / 73°F |
| June | 5 | 5 | 17 | 49° / 79°F |
| July | 12 | 11 | 19 | 52° / 87°F |
| August | 12 | 12 | 18 | 52° / 88°F |
| September | 5 | 5 | 19 | 48° / 79°F |
| October | 1 | 1 | 11 | 42° / 67°F |
| November | under 1 | under 1 | 1 | 36° / 55°F |
| December | under 1 | under 1 | under 1 | 33° / 48°F |
Deck stain does best in August. Low-temperature paint adds about 80 days a year here.
Towns near Cornelius compared
2 of the 6 nearest places get more painting days, the most in Sherwood (69 a year, 15 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. Forest Grove, Hillsboro, Beaverton, Tigard are read from the same station as Cornelius, so their numbers match; the real difference is the distance from that station.
| Place | From Cornelius | Painting days a year | Window | Station |
|---|---|---|---|---|
| Forest Grove, OR | 3 mi west | 39 | August | same station |
| Hillsboro, OR | 6 mi east | 39 | August | same station |
| Beaverton, OR | 12 mi east | 39 | August | same station |
| Tigard, OR | 15 mi southeast | 39 | August | same station |
| Sherwood, OR | 15 mi southeast | 69 | June to August | Aurora State Airport |
| Newberg, OR | 15 mi south | 69 | June to August | Aurora State Airport |
How Cornelius ranks in OR
Of 57 OR places with 10,000 people or more, Cornelius (population 15,369, 40th largest) ranks 40th for painting days, 13 days below the state median of 52. The longest season in the state is Portland, 87 days, 19 miles east. The shortest is Klamath Falls at 5. Switching to low-temperature paint here is worth 80 extra days, more than most of the summer months on their own.
Where these numbers come from
Daily records from Portland-Hillsboro Airport (5.2 miles away), 2015 to 2024, NOAA Global Summary of the Day. A month is good at 12+ painting days and possible at 6+.