San Gabriel, CA Weather & Climate Normals
What a normal year in San Gabriel actually looks like
On the 30-year record NOAA keeps for San Gabriel, CA, the comfort score comes out to 77/100, mild with real seasons: A solid stretch of comfortable months alongside a noticeable but not extreme summer or winter. Only 9 months a year land in the 55–75°F range this site treats as mild.
How much San Gabriel's weather actually swings
Average temperatures in San Gabriel run from 57°F in Dec up to 77°F in Aug, a 20°F seasonal swing, a middling gap by national standards.
San Gabriel, month by month
| Month | Avg high | Avg low | Precip | Snow |
|---|---|---|---|---|
| Jan | 69°F | 46°F | 3.56in | 0in |
| Feb | 68°F | 47°F | 4.22in | 0in |
| Mar | 71°F | 51°F | 2.53in | 0in |
| Apr | 74°F | 53°F | 0.61in | 0in |
| May | 76°F | 58°F | 0.48in | 0in |
| Jun | 81°F | 62°F | 0.13in | 0in |
| Jul | 86°F | 65°F | 0.04in | 0in |
| Aug | 88°F | 66°F | 0in | 0in |
| Sep | 87°F | 64°F | 0.13in | 0in |
| Oct | 81°F | 57°F | 0.61in | 0in |
| Nov | 74°F | 51°F | 0.92in | 0in |
| Dec | 68°F | 45°F | 2.44in | 0in |
If you're timing a visit, most of the year (9 of 12 months) are San Gabriel's mildest stretch; if you're moving there, you should plan around Aug's heat instead.
How wet San Gabriel actually gets
Over a typical year, San Gabriel sees about 15.67in of precipitation a year across roughly 33 days with measurable rain or snow, with 0in of snow a year.
San Gabriel against the rest of the country
Out of 4876 cities scored here, San Gabriel comes in at 177; within CA alone it ranks 177 of 429. Population is about 37,926.
Checking the actual forecast
These figures come from San Gabriel Fire Dept, CA US, the NOAA station 0.7 miles from San Gabriel, averaged over 30 years, not tomorrow's forecast.
More on how this is worked out
Why some cities show no snow or rain figure · What a 30-year climate normal actually is