Climate for Eureka, California
Home : Climate Graphs: California : Eureka
Average Temperatures for Eureka
| Month | Low | High |
|---|---|---|
| Jan | 40.8°F | 55.0°F |
| Feb | 41.8°F | 55.9°F |
| Mar | 42.2°F | 56.1°F |
| Apr | 44.0°F | 57.4°F |
| May | 47.6°F | 59.6°F |
| Jun | 50.7°F | 61.8°F |
| Jul | 52.8°F | 63.3°F |
| Aug | 53.4°F | 63.9°F |
| Sept | 51.2°F | 63.6°F |
| Oct | 47.7°F | 61.3°F |
| Nov | 43.9°F | 58.0°F |
| Dec | 40.6°F | 55.1°F |
Eureka's coldest month is December when the average temperature overnight is 40.6°F. In August, the warmest month, the average day time temperature rises to 63.9°F.
Average Rainfall for Eureka
| Month | Precipitation |
|---|---|
| Jan | 5.97in. |
| Feb | 5.51in. |
| Mar | 5.55in. |
| Apr | 2.91in. |
| May | 1.62in. |
| Jun | 0.65in. |
| Jul | 0.16in. |
| Aug | 0.38in. |
| Sept | 0.86in. |
| Oct | 2.36in. |
| Nov | 5.78in. |
| Dec | 6.35in. |
The driest month in Eureka is July with 0.16 inches of precipitation, and with 6.35 inches December is the wettest month.