When to paint a house exterior in San Ramon, CA
When to paint in San Ramon, CA
A normal season: plan the job, do not leave it late. The painting window is May to September, with 5 good months a year. The best month is June, at about 15 painting days. Book a painter by March.
If you want the house done in May to September, call for quotes in March 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
- 1Mar
- 4Apr
- 13May
- 15Jun
- 13Jul
- 14Aug
- 14Sep
- 9Oct
- 2Nov
- under 1Dec
Month by month
| Month | Painting days | Staining days | With low-temp paint | Avg low / high |
|---|---|---|---|---|
| January | under 1 | under 1 | 9 | 39° / 61°F |
| February | under 1 | under 1 | 14 | 38° / 65°F |
| March | 1 | under 1 | 17 | 41° / 67°F |
| April | 4 | 3 | 24 | 45° / 74°F |
| May | 13 | 10 | 25 | 50° / 78°F |
| June | 15 | 15 | 17 | 54° / 88°F |
| July | 13 | 13 | 13 | 57° / 93°F |
| August | 14 | 11 | 14 | 58° / 92°F |
| September | 14 | 14 | 16 | 56° / 90°F |
| October | 9 | 9 | 23 | 50° / 82°F |
| November | 2 | 1 | 19 | 41° / 68°F |
| December | under 1 | under 1 | 7 | 37° / 61°F |
Deck stain does best in June. Low-temperature paint adds about 112 days a year here.
Towns near San Ramon compared
2 of the 6 nearest places get more painting days, the most in Moraga (163 a year, 12 miles northwest). 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. Danville, Dublin, Pleasanton, Livermore are read from the same station as San Ramon, so their numbers match; the real difference is the distance from that station.
| Place | From San Ramon | Painting days a year | Window | Station |
|---|---|---|---|---|
| Danville, CA | 4 mi northwest | 85 | May to September | same station |
| Dublin, CA | 4 mi southeast | 85 | May to September | same station |
| Pleasanton, CA | 7 mi south | 85 | May to September | same station |
| Livermore, CA | 11 mi southeast | 85 | May to September | same station |
| Walnut Creek, CA | 11 mi northwest | 106 | August to October | Buchanan Field Airport |
| Moraga, CA | 12 mi northwest | 163 | May to October | Metro Oakland International Airport |
How San Ramon ranks in CA
Of 376 CA places with 10,000 people or more, San Ramon (population 85,924, 98th largest) ranks 254th for painting days, 43 days below the state median of 128. The longest season in the state is Santa Clarita, 269 days, 300 miles southeast. The shortest is Susanville at 4. Switching to low-temperature paint here is worth 112 extra days, more than most of the summer months on their own.
Where these numbers come from
Daily records from Livermore Municipal Airport (8.2 miles away), 2015 to 2024, NOAA Global Summary of the Day. A month is good at 12+ painting days and possible at 6+.