Weather in Santa Rosa, California, United States
Historical monthly conditions · 2021–2025
Monthly averages
Average daily air-temperature lows/highs and peak wind gusts. Rain is the average monthly total.
| Month | Avg low | Avg high | Rain | Cloud cover | Avg peak gust |
|---|---|---|---|---|---|
| January | 5°C | 15°C | 133.8 mm | 57% | 32.6 km/h |
| February | 4°C | 16°C | 121.4 mm | 49% | 35.3 km/h |
| March | 6°C | 16°C | 121.4 mm | 52% | 40.2 km/h |
| April | 7°C | 20°C | 22.6 mm | 38% | 38.3 km/h |
| May | 11°C | 24°C | 12.8 mm | 24% | 42.3 km/h |
| June | 13°C | 27°C | 1.3 mm | 22% | 41.7 km/h |
| July | 15°C | 29°C | 0.4 mm | 16% | 36.8 km/h |
| August | 15°C | 29°C | 0.7 mm | 16% | 36.9 km/h |
| September | 14°C | 27°C | 13.0 mm | 25% | 33.8 km/h |
| October | 11°C | 24°C | 45.9 mm | 36% | 30.5 km/h |
| November | 6°C | 18°C | 99.0 mm | 51% | 29.4 km/h |
| December | 5°C | 14°C | 176.2 mm | 67% | 30.7 km/h |
Weather match by month
Feels like 15°C–30°C · cloud ≤60% · rain ≤0.1 mm/h · gust ≤50 km/h
Feels-like temperature accounts for humidity and wind in shade. Percentages cover 08:00–20:00 local solar time.
| Month | Match rate | |
|---|---|---|
| January | 5.9% | |
| February | 11.5% | |
| March | 11.2% | |
| April | 35.2% | |
| May | 63.9% | |
| June | 71.9% | |
| July | 80.8% | |
| August | 82.6% | |
| September | 72.5% | |
| October | 51.7% | |
| November | 16.1% | |
| December | 3.8% |
About this location and data
- Urban-centre population
- 142,320
- Elevation
- 242 m
- Coordinates
- 38.44°N, 122.73°W
- Urban area
- 59 km²
Weather averages use 1 ERA5 grid cells, weighted by the area of the urban centre in each cell.
2021-2025 recent-weather sample (not a 30-year normal).
How the weather scores are calculated