PaintDays

When to paint a house exterior in Herndon, VA

When to paint in Herndon, VA

A short season: book early and expect weather delays. The painting window is June, with 2 good months a year. The best month is June, at about 13 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, Aug, Sep, Oct.

  1. under 1Jan
  2. 1Feb
  3. 1Mar
  4. 4Apr
  5. 8May
  6. 13Jun
  7. 8Jul
  8. 11Aug
  9. 12Sep
  10. 5Oct
  11. 1Nov
  12. under 1Dec

Month by month

MonthPainting daysStaining daysWith low-temp paintAvg low / high
Januaryunder 1under 1225° / 47°F
February1under 1328° / 52°F
March11834° / 60°F
April431243° / 71°F
May831453° / 79°F
June1381461° / 86°F
July83867° / 91°F
August1161165° / 89°F
September12101659° / 83°F
October551747° / 73°F
November11735° / 61°F
Decemberunder 1under 1230° / 52°F

Deck stain does best in September. Low-temperature paint adds about 49 days a year here.

Towns near Herndon compared

3 of the 6 nearest places get more painting days, the most in Falls Church (76 a year, 13 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. Vienna, Fairfax, Leesburg are read from the same station as Herndon, so their numbers match; the real difference is the distance from that station.

PlaceFrom HerndonPainting days a yearWindowStation
Vienna, VA9 mi southeast64Junesame station
Fairfax, VA9 mi southeast64Junesame station
Falls Church, VA13 mi southeast76May to JuneRonald Reagan Washington Natl
Leesburg, VA13 mi northwest64Junesame station
Manassas Park, VA14 mi south76August to SeptemberMansas Rgnl/H P Davs Fd Airport
Rockville, MD15 mi northeast70August to SeptemberGaithersburg Montgomery Count

How Herndon ranks in VA

Of 39 VA places with 10,000 people or more, Herndon (population 25,180, 24th largest) ranks 25th for painting days, 1 day below the state median of 65. The longest season in the state is Williamsburg, 109 days, 123 miles south. The shortest is Front Royal at 49. Switching to low-temperature paint here is worth 49 extra days, more than most of the summer months on their own.

Where these numbers come from

Daily records from Washington Dulles Internation (4 miles away), 2015 to 2024, NOAA Global Summary of the Day. A month is good at 12+ painting days and possible at 6+.