Weather World
Eureka Monthly Climate Averages
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 40°F Lo 27°F | Hi 45°F Lo 30°F | Hi 56°F Lo 40°F | Hi 66°F Lo 48°F | Hi 75°F Lo 58°F | Hi 84°F Lo 66°F | Hi 87°F Lo 69°F | Hi 86°F Lo 67°F | Hi 81°F Lo 62°F | Hi 69°F Lo 51°F | Hi 55°F Lo 39°F | Hi 46°F Lo 33°F |
| 9 mph | 9 mph | 9 mph | 9 mph | 7 mph | 6 mph | 6 mph | 6 mph | 6 mph | 8 mph | 8 mph | 8 mph |
| 4.4 in | 5.3 in | 5.6 in | 7.7 in | 6.2 in | 4.8 in | 4.8 in | 3.9 in | 4.7 in | 4.4 in | 4.8 in | 5.8 in |
| 77% | 79% | 77% | 77% | 80% | 77% | 78% | 75% | 72% | 70% | 73% | 77% |
| 54% | 54% | 50% | 45% | 43% | 31% | 33% | 31% | 31% | 34% | 38% | 52% |
| 30.2 in | 30.1 in | 30.1 in | 30.0 in | 30.0 in | 29.9 in | 30.0 in | 30.0 in | 30.0 in | 30.0 in | 30.1 in | 30.1 in |
| 21 | 19 | 23 | 22 | 20 | 22 | 22 | 24 | 24 | 25 | 24 | 22 |
| 7 | 7 | 7 | 8 | 11 | 8 | 9 | 7 | 6 | 6 | 6 | 7 |
| 3 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
| 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 1 |
| 2 | 2 | 3 | 4 | 5 | 6 | 6 | 6 | 5 | 3 | 2 | 2 |
| 144 | 132 | 152 | 164 | 177 | 228 | 228 | 241 | 234 | 216 | 198 | 149 |
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 5°C Lo -3°C | Hi 7°C Lo -1°C | Hi 14°C Lo 4°C | Hi 19°C Lo 9°C | Hi 24°C Lo 15°C | Hi 29°C Lo 19°C | Hi 31°C Lo 21°C | Hi 30°C Lo 20°C | Hi 27°C Lo 17°C | Hi 21°C Lo 10°C | Hi 13°C Lo 4°C | Hi 8°C Lo 1°C |
| 14 km/h | 14 km/h | 14 km/h | 14 km/h | 12 km/h | 10 km/h | 9 km/h | 9 km/h | 10 km/h | 13 km/h | 13 km/h | 13 km/h |
| 111 mm | 134 mm | 142 mm | 196 mm | 158 mm | 121 mm | 122 mm | 99 mm | 120 mm | 112 mm | 122 mm | 148 mm |
| 77% | 79% | 77% | 77% | 80% | 77% | 78% | 75% | 72% | 70% | 73% | 77% |
| 54% | 54% | 50% | 45% | 43% | 31% | 33% | 31% | 31% | 34% | 38% | 52% |
| 1021 mb | 1020 mb | 1018 mb | 1015 mb | 1015 mb | 1014 mb | 1015 mb | 1016 mb | 1017 mb | 1018 mb | 1021 mb | 1020 mb |
| 21 | 19 | 23 | 22 | 20 | 22 | 22 | 24 | 24 | 25 | 24 | 22 |
| 7 | 7 | 7 | 8 | 11 | 8 | 9 | 7 | 6 | 6 | 6 | 7 |
| 3 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
| 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 1 |
| 2 | 2 | 3 | 4 | 5 | 6 | 6 | 6 | 5 | 3 | 2 | 2 |
| 144 | 132 | 152 | 164 | 177 | 228 | 228 | 241 | 234 | 216 | 198 | 149 |
| Month |
| Avg. Temperatures |
| Avg. Wind Speed |
| Avg. Precipitation |
| Average Humidity |
| Avg. Cloud Cover |
| Pressure Average |
| Average Dry Days |
| Avg. Precip. Days |
| Avg. Snow Days |
| Average Fog Days |
| Average UV Index |
| Avg. Hours of Sun |
Averages are based on historical weather data from the past 10 years.