Orrick Monthly Climate Averages
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 37°F Lo 22°F | Hi 42°F Lo 26°F | Hi 56°F Lo 38°F | Hi 64°F Lo 46°F | Hi 73°F Lo 56°F | Hi 84°F Lo 66°F | Hi 87°F Lo 70°F | Hi 86°F Lo 67°F | Hi 81°F Lo 61°F | Hi 67°F Lo 49°F | Hi 54°F Lo 37°F | Hi 43°F Lo 29°F |
| 9 mph | 10 mph | 10 mph | 10 mph | 8 mph | 8 mph | 7 mph | 7 mph | 7 mph | 9 mph | 9 mph | 9 mph |
| 1.9 in | 2 in | 4 in | 5.9 in | 7.7 in | 5.8 in | 5.2 in | 4.7 in | 3.5 in | 3.9 in | 3.8 in | 2 in |
| 75% | 73% | 72% | 73% | 79% | 77% | 75% | 73% | 70% | 67% | 70% | 73% |
| 46% | 46% | 47% | 43% | 43% | 31% | 28% | 28% | 28% | 32% | 35% | 43% |
| 30.2 in | 30.1 in | 30.0 in | 29.9 in | 29.9 in | 29.9 in | 29.9 in | 30.0 in | 30.0 in | 30.0 in | 30.1 in | 30.1 in |
| 23 | 20 | 24 | 22 | 21 | 22 | 23 | 24 | 24 | 26 | 25 | 26 |
| 5 | 5 | 7 | 8 | 10 | 8 | 8 | 7 | 6 | 5 | 5 | 4 |
| 3 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
| 1 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 2 | 0 | 1 | 1 |
| 2 | 2 | 3 | 4 | 5 | 6 | 6 | 6 | 5 | 3 | 2 | 2 |
| 179 | 163 | 162 | 168 | 165 | 216 | 232 | 248 | 247 | 225 | 215 | 192 |
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 3°C Lo -5°C | Hi 6°C Lo -3°C | Hi 13°C Lo 3°C | Hi 18°C Lo 8°C | Hi 23°C Lo 13°C | Hi 29°C Lo 19°C | Hi 31°C Lo 21°C | Hi 30°C Lo 20°C | Hi 27°C Lo 16°C | Hi 20°C Lo 10°C | Hi 12°C Lo 3°C | Hi 6°C Lo -2°C |
| 15 km/h | 16 km/h | 17 km/h | 16 km/h | 13 km/h | 13 km/h | 11 km/h | 11 km/h | 12 km/h | 15 km/h | 15 km/h | 15 km/h |
| 48 mm | 52 mm | 102 mm | 150 mm | 195 mm | 148 mm | 133 mm | 120 mm | 89 mm | 99 mm | 97 mm | 50 mm |
| 75% | 73% | 72% | 73% | 79% | 77% | 75% | 73% | 70% | 67% | 70% | 73% |
| 46% | 46% | 47% | 43% | 43% | 31% | 28% | 28% | 28% | 32% | 35% | 43% |
| 1022 mb | 1020 mb | 1017 mb | 1014 mb | 1014 mb | 1012 mb | 1014 mb | 1014 mb | 1016 mb | 1016 mb | 1019 mb | 1020 mb |
| 23 | 20 | 24 | 22 | 21 | 22 | 23 | 24 | 24 | 26 | 25 | 26 |
| 5 | 5 | 7 | 8 | 10 | 8 | 8 | 7 | 6 | 5 | 5 | 4 |
| 3 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
| 1 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 2 | 0 | 1 | 1 |
| 2 | 2 | 3 | 4 | 5 | 6 | 6 | 6 | 5 | 3 | 2 | 2 |
| 179 | 163 | 162 | 168 | 165 | 216 | 232 | 248 | 247 | 225 | 215 | 192 |
| 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.
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