Weather World
Lake Berryessa Monthly Climate Averages
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 57°F Lo 41°F | Hi 60°F Lo 42°F | Hi 63°F Lo 43°F | Hi 70°F Lo 47°F | Hi 79°F Lo 52°F | Hi 89°F Lo 58°F | Hi 95°F Lo 61°F | Hi 94°F Lo 60°F | Hi 89°F Lo 59°F | Hi 77°F Lo 54°F | Hi 64°F Lo 45°F | Hi 56°F Lo 42°F |
| 4 mph | 5 mph | 5 mph | 5 mph | 6 mph | 6 mph | 5 mph | 5 mph | 5 mph | 5 mph | 4 mph | 4 mph |
| 4.3 in | 4.8 in | 3.6 in | 1.4 in | 0.6 in | 0.2 in | 0 in | 0 in | 0.2 in | 1.5 in | 3.3 in | 5.5 in |
| 72% | 73% | 74% | 66% | 58% | 50% | 47% | 49% | 47% | 50% | 62% | 71% |
| 38% | 38% | 40% | 29% | 20% | 10% | 5% | 6% | 10% | 18% | 29% | 40% |
| 30.1 in | 30.1 in | 30.1 in | 30.0 in | 29.9 in | 29.9 in | 29.9 in | 29.9 in | 29.9 in | 30.0 in | 30.1 in | 30.1 in |
| 25 | 23 | 25 | 27 | 29 | 29 | 31 | 31 | 29 | 29 | 26 | 24 |
| 6 | 5 | 6 | 3 | 2 | 1 | 0 | 0 | 1 | 2 | 4 | 7 |
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 |
| 3 | 3 | 3 | 5 | 6 | 7 | 6 | 6 | 5 | 4 | 3 | 3 |
| 205 | 184 | 192 | 237 | 277 | 309 | 336 | 356 | 329 | 292 | 246 | 203 |
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 14°C Lo 5°C | Hi 15°C Lo 5°C | Hi 17°C Lo 6°C | Hi 21°C Lo 8°C | Hi 26°C Lo 11°C | Hi 32°C Lo 15°C | Hi 35°C Lo 16°C | Hi 34°C Lo 16°C | Hi 32°C Lo 15°C | Hi 25°C Lo 12°C | Hi 18°C Lo 8°C | Hi 13°C Lo 5°C |
| 7 km/h | 8 km/h | 8 km/h | 9 km/h | 9 km/h | 9 km/h | 9 km/h | 8 km/h | 8 km/h | 7 km/h | 7 km/h | 7 km/h |
| 108 mm | 123 mm | 90 mm | 35 mm | 16 mm | 5 mm | 1 mm | 0 mm | 6 mm | 37 mm | 84 mm | 139 mm |
| 72% | 73% | 74% | 66% | 58% | 50% | 47% | 49% | 47% | 50% | 62% | 71% |
| 38% | 38% | 40% | 29% | 20% | 10% | 5% | 6% | 10% | 18% | 29% | 40% |
| 1020 mb | 1019 mb | 1018 mb | 1017 mb | 1014 mb | 1012 mb | 1013 mb | 1013 mb | 1013 mb | 1015 mb | 1018 mb | 1020 mb |
| 25 | 23 | 25 | 27 | 29 | 29 | 31 | 31 | 29 | 29 | 26 | 24 |
| 6 | 5 | 6 | 3 | 2 | 1 | 0 | 0 | 1 | 2 | 4 | 7 |
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 |
| 3 | 3 | 3 | 5 | 6 | 7 | 6 | 6 | 5 | 4 | 3 | 3 |
| 205 | 184 | 192 | 237 | 277 | 309 | 336 | 356 | 329 | 292 | 246 | 203 |
| 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.