Weather World
Lake Sonoma Monthly Climate Averages
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 35°F Lo 23°F | Hi 38°F Lo 24°F | Hi 47°F Lo 31°F | Hi 59°F Lo 41°F | Hi 69°F Lo 51°F | Hi 79°F Lo 59°F | Hi 85°F Lo 66°F | Hi 82°F Lo 64°F | Hi 75°F Lo 57°F | Hi 63°F Lo 47°F | Hi 50°F Lo 36°F | Hi 41°F Lo 29°F |
| 8 mph | 8 mph | 8 mph | 8 mph | 6 mph | 6 mph | 5 mph | 5 mph | 6 mph | 6 mph | 7 mph | 7 mph |
| 3.6 in | 4 in | 4.7 in | 4.3 in | 5.4 in | 5.4 in | 5.9 in | 5.2 in | 5 in | 5.1 in | 3.6 in | 5.5 in |
| 75% | 78% | 75% | 72% | 76% | 74% | 74% | 74% | 76% | 76% | 74% | 78% |
| 47% | 49% | 49% | 49% | 48% | 40% | 37% | 37% | 39% | 42% | 38% | 49% |
| 30.0 in | 30.0 in | 30.0 in | 30.0 in | 30.0 in | 29.9 in | 30.0 in | 30.0 in | 30.1 in | 30.0 in | 30.1 in | 30.1 in |
| 20 | 16 | 21 | 22 | 22 | 22 | 22 | 23 | 23 | 25 | 24 | 20 |
| 7 | 7 | 7 | 7 | 9 | 8 | 10 | 8 | 7 | 6 | 5 | 8 |
| 4 | 5 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3 |
| 1 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| 1 | 1 | 2 | 3 | 5 | 6 | 6 | 5 | 4 | 3 | 2 | 1 |
| 161 | 138 | 152 | 147 | 164 | 180 | 199 | 209 | 197 | 175 | 196 | 156 |
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 2°C Lo -5°C | Hi 4°C Lo -5°C | Hi 9°C Lo -1°C | Hi 15°C Lo 5°C | Hi 21°C Lo 10°C | Hi 26°C Lo 15°C | Hi 29°C Lo 19°C | Hi 28°C Lo 18°C | Hi 24°C Lo 14°C | Hi 17°C Lo 9°C | Hi 10°C Lo 2°C | Hi 5°C Lo -2°C |
| 13 km/h | 12 km/h | 13 km/h | 12 km/h | 10 km/h | 9 km/h | 8 km/h | 8 km/h | 9 km/h | 10 km/h | 11 km/h | 12 km/h |
| 92 mm | 101 mm | 121 mm | 109 mm | 138 mm | 137 mm | 151 mm | 131 mm | 126 mm | 129 mm | 90 mm | 139 mm |
| 75% | 78% | 75% | 72% | 76% | 74% | 74% | 74% | 76% | 76% | 74% | 78% |
| 47% | 49% | 49% | 49% | 48% | 40% | 37% | 37% | 39% | 42% | 38% | 49% |
| 1018 mb | 1018 mb | 1018 mb | 1016 mb | 1016 mb | 1014 mb | 1014 mb | 1016 mb | 1018 mb | 1017 mb | 1019 mb | 1019 mb |
| 20 | 16 | 21 | 22 | 22 | 22 | 22 | 23 | 23 | 25 | 24 | 20 |
| 7 | 7 | 7 | 7 | 9 | 8 | 10 | 8 | 7 | 6 | 5 | 8 |
| 4 | 5 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3 |
| 1 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| 1 | 1 | 2 | 3 | 5 | 6 | 6 | 5 | 4 | 3 | 2 | 1 |
| 161 | 138 | 152 | 147 | 164 | 180 | 199 | 209 | 197 | 175 | 196 | 156 |
| 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.