When to paint a house exterior in Derby, CT
When to paint in Derby, CT
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 September, at about 17 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
- 7May
- 16Jun
- 15Jul
- 16Aug
- 17Sep
- 6Oct
- 1Nov
- under 1Dec
Month by month
| Month | Painting days | Staining days | With low-temp paint | Avg low / high |
|---|---|---|---|---|
| January | under 1 | under 1 | 2 | 25° / 43°F |
| February | under 1 | under 1 | 1 | 24° / 45°F |
| March | under 1 | under 1 | 4 | 31° / 51°F |
| April | 1 | 1 | 12 | 40° / 61°F |
| May | 7 | 4 | 16 | 50° / 72°F |
| June | 16 | 11 | 18 | 59° / 80°F |
| July | 15 | 8 | 15 | 67° / 86°F |
| August | 16 | 11 | 16 | 66° / 85°F |
| September | 17 | 12 | 19 | 59° / 79°F |
| October | 6 | 6 | 16 | 48° / 69°F |
| November | 1 | 1 | 8 | 36° / 57°F |
| December | under 1 | under 1 | 2 | 30° / 48°F |
Deck stain does best in September. Low-temperature paint adds about 50 days a year here.
Towns near Derby compared
1 gets fewer, down to 67 a year. 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. West Haven, New Haven are read from the same station as Derby, so their numbers match; the real difference is the distance from that station.
| Place | From Derby | Painting days a year | Window | Station |
|---|---|---|---|---|
| Ansonia, CT | 1 mi northeast | 67 | June to August | Waterbury-Oxford Airport |
| Shelton, CT | 3 mi southwest | 79 | June to September | Igor I Sikorsky Memorial Airport |
| West Haven, CT | 7 mi southeast | 79 | June to September | same station |
| Milford, CT | 7 mi south | 79 | June to September | Igor I Sikorsky Memorial Airport |
| New Haven, CT | 8 mi east | 79 | June to September | same station |
| Bridgeport, CT | 11 mi southwest | 79 | June to September | Igor I Sikorsky Memorial Airport |
How Derby ranks in CT
Of 21 CT places with 10,000 people or more, Derby (population 12,915, 20th largest) ranks 3rd for painting days, 13 days above the state median of 67. The longest season in the state is New Haven, 79 days, 8 miles east. The shortest is Norwich at 56. Switching to low-temperature paint here is worth 50 extra days, more than most of the summer months on their own.
Where these numbers come from
Daily records from Tweed-New Haven Airport (11 miles away), 2015 to 2024, NOAA Global Summary of the Day. A month is good at 12+ painting days and possible at 6+.