When to paint a house exterior in Darby, PA
When to paint in Darby, PA
A normal season: plan the job, do not leave it late. The painting window is May to June, with 4 good months a year. The best month is September, at about 16 painting days. Book a painter by March.
If you want the house done in May to June, call for quotes in March 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 May, Jun, Jul, Aug, Sep, Oct.
- under 1Jan
- under 1Feb
- under 1Mar
- 4Apr
- 12May
- 14Jun
- 8Jul
- 13Aug
- 16Sep
- 9Oct
- 1Nov
- under 1Dec
Month by month
| Month | Painting days | Staining days | With low-temp paint | Avg low / high |
|---|---|---|---|---|
| January | under 1 | under 1 | 2 | 27° / 46°F |
| February | under 1 | under 1 | 3 | 29° / 50°F |
| March | under 1 | under 1 | 7 | 35° / 57°F |
| April | 4 | 3 | 16 | 44° / 68°F |
| May | 12 | 8 | 17 | 54° / 77°F |
| June | 14 | 10 | 14 | 63° / 86°F |
| July | 8 | 4 | 8 | 71° / 91°F |
| August | 13 | 9 | 13 | 69° / 89°F |
| September | 16 | 12 | 16 | 63° / 83°F |
| October | 9 | 9 | 20 | 51° / 72°F |
| November | 1 | 1 | 14 | 39° / 60°F |
| December | under 1 | under 1 | 4 | 32° / 50°F |
Deck stain does best in September. Low-temperature paint adds about 55 days a year here.
Towns near Darby compared
Every one of the 6 closest places lands within three days of Darby's 77 a year, so the season here is the regional season. Yeadon, Lansdowne, Chester, Gloucester City, Woodbury, Camden are read from the same station as Darby, so their numbers match; the real difference is the distance from that station.
| Place | From Darby | Painting days a year | Window | Station |
|---|---|---|---|---|
| Yeadon, PA | 1 mi northeast | 77 | May to June | same station |
| Lansdowne, PA | 2 mi northwest | 77 | May to June | same station |
| Chester, PA | 8 mi southwest | 77 | May to June | same station |
| Gloucester City, NJ | 8 mi east | 77 | May to June | same station |
| Woodbury, NJ | 8 mi southeast | 77 | May to June | same station |
| Camden, NJ | 8 mi east | 77 | May to June | same station |
How Darby ranks in PA
Of 68 PA places with 10,000 people or more, Darby (population 10,749, 62nd largest) ranks 22nd for painting days, 13 days above the state median of 65. The longest season in the state is Indiana, 109 days, 211 miles west. The shortest is St. Marys at 39. Switching to low-temperature paint here is worth 55 extra days, more than most of the summer months on their own.
Where these numbers come from
Daily records from Philadelphia International Airport (3.8 miles away), 2015 to 2024, NOAA Global Summary of the Day. A month is good at 12+ painting days and possible at 6+.