Average annual temperature is 12.2 °C
Absolute maximum temperature: 33.1 °C
Absolute minimum temperature: -9.9 °C
Number of sunny days: 171 days
Number of rainy days: 183 days
Number of snow days: 11 days
Look at detailed online map of Atherton
* Weather data for Atherton United States is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 16.2 | 21.0 | 21.9 | 26.5 | 28.7 | 33.1 | 32.3 | 32.0 | 31.9 | 27.8 | 19.7 | 16.1 |
| Average daytime temperature (°C) | 6.9 | 11.0 | 10.9 | 17.6 | 21.8 | 25.5 | 28.7 | 27.5 | 24.9 | 18.2 | 11.3 | 8.5 |
| Average temperature (°C) | 2.8 | 4.2 | 4.8 | 11.2 | 15.5 | 19.7 | 23.3 | 21.8 | 19.2 | 13.4 | 5.8 | 4.4 |
| Average night temperature (°C) | -0.4 | -0.5 | 0.2 | 5.5 | 9.8 | 14.3 | 18.6 | 16.9 | 14.2 | 9.3 | 1.6 | 1.5 |
| Absolute minimum temperature (°C) | -7.5 | -9.9 | -7.8 | -1.0 | 2.7 | 9.0 | 14.3 | 11.5 | 7.9 | -0.2 | -7.1 | -4.7 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 15.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.7 | 10.7 | 12.0 | 13.3 | 14.4 | 15.0 | 14.7 | 13.7 | 12.5 | 11.1 | 10.0 | 9.4 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 3.6 | 6.9 | 7.2 | 8.9 | 9.9 | 10.2 | 11.8 | 10.6 | 9.4 | 6.9 | 6.9 | 4.8 |
| Precipitation (mm) | 136 | 59 | 128 | 86 | 86 | 112 | 94 | 107 | 36 | 98 | 48 | 64 |
| Sunny days | 10 | 16 | 13 | 15 | 17 | 14 | 6 | 15 | 19 | 14 | 22 | 10 |
| Rainy days | 17 | 12 | 14 | 15 | 14 | 16 | 25 | 16 | 11 | 17 | 7 | 19 |
| Snow days | 4 | 0 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 |
The best time to visit Atherton during the most sunny months:
The largest precipitation sum in Atherton is at