Atherton, CA
Climate overview — based on NOAA 1991-2020 normals from REDWOOD CITY, CA US.
Year-round temperatures (°F)
Climate summary
Atherton has an annual average temperature of 59.4°F with about 19 inches of precipitation per year. The warmest month is July (average high 81.0°F), and the coldest is December (average low 40.2°F). December is typically the wettest month (3.92 in) and July the driest (0.00 in).
Best time to visit Atherton
Full guide →Climate change signal
All-time records →59 of 366 (16.1%) of Atherton's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.
| 1900s | 0 | |
| 1910s | 0 | |
| 1930s | 47 | |
| 1940s | 31 | |
| 1950s | 33 | |
| 1960s | 38 | |
| 1970s | 54 | |
| 1980s | 39 | |
| 1990s | 21 | |
| 2000s | 26 | |
| 2010s | 41 | |
| 2020s | 36 |
Bars: number of all-time daily heat records still standing that were set in each decade.
Monthly averages
| Month | Avg High | Avg Low | Avg Temp | Precipitation | Snow | Rainy days |
|---|---|---|---|---|---|---|
| January | 58.9°F | 40.5°F | 49.7°F | 3.81 in | — | 9 |
| February | 61.9°F | 42.5°F | 52.2°F | 3.65 in | — | 9 |
| March | 65.3°F | 44.6°F | 54.9°F | 3.02 in | — | 9 |
| April | 68.5°F | 46.5°F | 57.5°F | 1.15 in | — | 5 |
| May | 72.9°F | 50.4°F | 61.6°F | 0.46 in | — | 3 |
| June | 78.8°F | 53.6°F | 66.2°F | 0.16 in | — | 1 |
| July | 81.0°F | 56.6°F | 68.8°F | 0.00 in | — | 0 |
| August | 80.8°F | 56.5°F | 68.7°F | 0.04 in | — | 0 |
| September | 79.3°F | 54.3°F | 66.8°F | 0.07 in | — | 1 |
| October | 74.6°F | 49.8°F | 62.2°F | 0.87 in | — | 3 |
| November | 64.7°F | 43.9°F | 54.3°F | 1.87 in | — | 6 |
| December | 58.6°F | 40.2°F | 49.4°F | 3.92 in | — | 9 |
Climate twins of Atherton
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).