Unlock deeper multi-jurisdiction research
Full sub-pages, saves, and alerts are available on paid plans.
Weather & Climate
Eureka, California, United States
Overview
Climate data and monthly weather averages for Eureka.
Key Metrics
Annual Avg
11.9°C
Summer Avg
13.7°C
Winter Avg
10.2°C
Record High
26°C
Record Low
3.5°C
Annual Precipitation
1215.3 mm
Avg Humidity
85%
Summer Humidity
89%
Winter Humidity
82%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 17.5° | 10.3° | 3.7° | 194.1 | 82% | 59 | 72.8 |
| Feb | 18.3° | 9.9° | 4.5° | 156 | 83% | 76 | 65.6 |
| Mar | 18.1° | 10° | 3.6° | 170.8 | 85% | 121 | 66.9 |
| Apr | 18.1° | 10.4° | 5.5° | 95.1 | 85% | 157 | 62.4 |
| May | 20° | 11.6° | 7.3° | 44 | 88% | 194 | 57.1 |
| Jun | 24.9° | 12.8° | 8.9° | 20.7 | 89% | 209 | 52.7 |
| Jul | 24.8° | 13.9° | 10.2° | 6.8 | 89% | 203 | 49.7 |
| Aug | 21.6° | 14.4° | 10.5° | 7.1 | 88% | 174 | 46.6 |
| Sep | 26° | 14.4° | 9.6° | 22.5 | 85% | 142 | 47.2 |
| Oct | 22.1° | 13.2° | 7.7° | 76.9 | 84% | 105 | 67.6 |
| Nov | 17.8° | 11.7° | 5.3° | 149.4 | 83% | 65 | 65.7 |
| Dec | 16.8° | 10.4° | 3.5° | 271.9 | 82% | 49 | 75.9 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
Subscribe to unlock the full sub-page depth for additional jurisdictions.
You can keep discovering Oyster publicly, but full multi-jurisdiction depth, tracking, alerts, and exports are part of paid access.