Atherton, CA Weather & Climate Normals
What a normal year in Atherton actually looks like
On the 30-year record NOAA keeps for Atherton, CA, the comfort score comes out to 73/100, mild with real seasons: A solid stretch of comfortable months alongside a noticeable but not extreme summer or winter. Only 8 months a year land in the 55–75°F range this site treats as mild.
How much Atherton's weather actually swings
Average temperatures in Atherton run from 49°F in Dec up to 69°F in Jul, a 19.4°F seasonal swing, one of the smaller gaps in this dataset.
Atherton, month by month
| Month | Avg high | Avg low | Precip | Snow |
|---|---|---|---|---|
| Jan | 59°F | 41°F | 3.81in | 0in |
| Feb | 62°F | 43°F | 3.65in | 0in |
| Mar | 65°F | 45°F | 3.02in | 0in |
| Apr | 69°F | 47°F | 1.15in | 0in |
| May | 73°F | 50°F | 0.46in | 0in |
| Jun | 79°F | 54°F | 0.16in | 0in |
| Jul | 81°F | 57°F | 0in | 0in |
| Aug | 81°F | 57°F | 0.04in | 0in |
| Sep | 79°F | 54°F | 0.07in | 0in |
| Oct | 75°F | 50°F | 0.87in | 0in |
| Nov | 65°F | 44°F | 1.87in | 0in |
| Dec | 59°F | 40°F | 3.92in | 0in |
If you're timing a visit, most of the year (8 of 12 months) are Atherton's mildest stretch; if you're moving there, you should plan around Dec's cold instead.
How wet Atherton actually gets
Over a typical year, Atherton sees about 19.02in of precipitation a year across roughly 55 days with measurable rain or snow, with 0in of snow a year.
Atherton against the rest of the country
Out of 4876 cities scored here, Atherton comes in at 228; within CA alone it ranks 226 of 429. Population is about 7,022.
Checking the actual forecast
These figures come from Redwood City, CA US, the NOAA station 2.5 miles from Atherton, averaged over 30 years, not tomorrow's forecast.
More on how this is worked out
Why this uses the nearest NOAA station · How the comfort score is calculated