PaintDays

When to paint a house exterior in Union City, CA

When to paint in Union City, CA

A long painting season, with room to reschedule. The painting window is April to October, with 7 good months a year. The best month is July, at about 30 painting days. Book a painter by February.

If you want the house done in April to October, call for quotes in February or earlier; a job pushed past October is likely to wait until next year. For a deck, the months with enough staining days to spare are Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov.

  1. 3Jan
  2. 3Feb
  3. 9Mar
  4. 16Apr
  5. 26May
  6. 28Jun
  7. 30Jul
  8. 29Aug
  9. 26Sep
  10. 23Oct
  11. 8Nov
  12. 2Dec

Month by month

MonthPainting daysStaining daysWith low-temp paintAvg low / high
January321846° / 60°F
February332146° / 63°F
March942048° / 65°F
April16162550° / 67°F
May26242854° / 70°F
June28282857° / 75°F
July30303059° / 76°F
August29282960° / 77°F
September26252659° / 78°F
October23192655° / 75°F
November862248° / 66°F
December211845° / 60°F

Deck stain does best in July. Low-temperature paint adds about 88 days a year here.

Towns near Union City compared

1 of the 6 nearest places get more painting days, the most in Newark (212 a year, 7 miles south); 4 get fewer, down to 85 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. Hayward is read from the same station as Union City, so its numbers match; the real difference is the distance from that station.

PlaceFrom Union CityPainting days a yearWindowStation
Hayward, CA5 mi west202April to Octobersame station
Newark, CA7 mi south212April to OctoberPalo Alto Airport Of Santa Cl
Fremont, CA9 mi southeast161May to OctoberN Y. Mineta Sn Jo International Airport
Pleasanton, CA9 mi northeast85May to SeptemberLivermore Municipal Airport
Dublin, CA10 mi northeast85May to SeptemberLivermore Municipal Airport
San Leandro, CA11 mi northwest163May to OctoberMetro Oakland International Airport

How Union City ranks in CA

Of 376 CA places with 10,000 people or more, Union City (population 66,196, 137th largest) ranks 107th for painting days, 75 days above the state median of 128. The longest season in the state is Santa Clarita, 269 days, 295 miles southeast. The shortest is Susanville at 4. Switching to low-temperature paint here is worth 88 extra days, more than most of the summer months on their own.

Where these numbers come from

Daily records from Hayward Executive Airport (6.3 miles away), 2015 to 2024, NOAA Global Summary of the Day. A month is good at 12+ painting days and possible at 6+.