PaintDays

When to paint a house exterior in Ukiah, CA

When to paint in Ukiah, CA

Exterior painting here is a gamble in any month. The painting window is September, and even that is thin, with 0 good months a year. The best month is September, at about 7 painting days. Book a painter by July.

If you want the house done in September, call for quotes in July 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 Jun, Sep.

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

Month by month

MonthPainting daysStaining daysWith low-temp paintAvg low / high
Januaryunder 1under 1738° / 60°F
Februaryunder 1under 1936° / 65°F
Marchunder 1under 11339° / 67°F
April222142° / 74°F
May532147° / 82°F
June661153° / 92°F
July31356° / 98°F
August43456° / 97°F
September771251° / 92°F
October221845° / 83°F
November1under 11138° / 67°F
Decemberunder 1under 1336° / 59°F

Deck stain does best in September. Low-temperature paint adds about 103 days a year here.

Towns near Ukiah compared

5 of the 6 nearest places get more painting days, the most in Rohnert Park (90 a year, 62 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. Clearlake is read from the same station as Ukiah, so its numbers match; the real difference is the distance from that station.

PlaceFrom UkiahPainting days a yearWindowStation
Clearlake, CA33 mi southeast29Septembersame station
Healdsburg, CA41 mi southeast60July to AugustSonoma County Airport
Windsor, CA47 mi southeast60July to AugustSonoma County Airport
Santa Rosa, CA55 mi southeast60July to AugustSonoma County Airport
Rohnert Park, CA62 mi southeast90June to SeptemberPetaluma Municipal Airport
Petaluma, CA70 mi southeast90June to SeptemberPetaluma Municipal Airport

How Ukiah ranks in CA

Of 376 CA places with 10,000 people or more, Ukiah (population 16,067, 323rd largest) ranks 370th for painting days, 99 days below the state median of 128. The longest season in the state is Santa Clarita, 269 days, 418 miles southeast. The shortest is Susanville at 4. Switching to low-temperature paint here is worth 103 extra days, more than most of the summer months on their own.

Where these numbers come from

Daily records from Ukiah Municipal Airport (1.4 miles away), 2015 to 2024, NOAA Global Summary of the Day. A month is good at 12+ painting days and possible at 6+.