All Countries
Sonoma, CA
Full City Profile · California · Napa County County
3.0
/5.0
B
Good
10,726
Population
3,915/sq mi density
$101,281
Median Income
$72,127 per capita
$954,300
Home Value
$928,404 Zillow
$2,216
Median Rent
35.1% income on rent
59°F
Avg Temperature
326 sunny days/yr
336
Violent Crime/100K
1,077 property/100K
B
Overall
3.0 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.7 / 5.0
$101,281 median income, 3.8% unemployment
F
Affordability
1.3 / 5.0
$954,300 home value, $2,216/mo rent
F
Safety
1.0 / 5.0
336 violent crimes/100K
A+
Education
4.8 / 5.0
47.7% bachelor's degree or higher
Sonoma enjoys a temperate climate with an average annual temperature of 59°F (15°C). Winters average 48°F in January while summers reach 70°F in July. The area gets 326 sunny days per year. Annual precipitation totals 28.4 inches. The area receives 0.0 inches of snow annually. Air quality is rated Good with a median AQI of 19.
Temperature
48°F Jan (9°C)
70°F Jul (21°C)
| Annual Average | 59.0°F |
| 9% above US avg | |
| January Average | 48°F (9°C) |
| July Average | 70°F (21°C) |
| Sunny Days | 326 days/yr |
Geography
| Elevation | 78 ft (24 m) |
| Area | 2.7 sq mi (7.1 km²) |
| Population Density | 3,915/sq mi |
| Coordinates | 38.2903°N, 122.4598°W |
| Timezone | America/Los_Angeles |
| County | Napa County County |
| Nearest Airport | Metro Oakland International (OAK) 41 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 19.0 |
| Rating | Good |
| Good Days % | 95.1% |
| Unhealthy Days | 0 |
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 95.3 / 100 |
| Social Vulnerability | 38.5 / 100 |
| Community Resilience | 76.0 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively High |
| Wildfire | Relatively Moderate |
| Flood | Relatively High |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Relatively Low |
| Winter Weather | Very Low |
| Lightning | Relatively Low |
| Drought | Very High |
| Cold Wave | No Rating |
| Landslide | Relatively High |
| Coastal Flood | Relatively Moderate |
| Tsunami | Very Low |
| Volcano | Very Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Tsunami History
5 tsunamis recorded within 500 km. Highest wave on record: 4.5 m (15 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1868 | N. CALIFORNIA | Eruption + Earthquake | 4.5 m | 30 | 73 km |
| 1989 | N. CALIFORNIA | Earthquake | 1.0 m | 62 | 148 km |
| 1856 | N. CALIFORNIA | Eruption + Earthquake | 0.6 m | — | 89 km |
| 1906 | N. CALIFORNIA | Eruption + Earthquake | 0.1 m | — | 66 km |
| 1865 | N. CALIFORNIA | Eruption + Earthquake | — | — | 131 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Nearby Volcanoes
1 volcano within 200 km. Closest: Clear Lake (80 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Clear Lake | Volcanic field | 1,439 m (4,721 ft) | Unknown | 80 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 48°F (9°C) | 6.4 in | Wettest |
| February | 51°F (11°C) | 5.6 in | |
| March | 54°F (12°C) | 4.3 in | |
| April | 57°F (14°C) | 1.6 in | |
| May | 62°F (17°C) | 0.7 in | |
| June | 67°F (19°C) | 0.2 in | |
| July | 70°F (21°C) | 0.0 in | Driest |
| August | 70°F (21°C) | 0.1 in | Warmest |
| September | 68°F (20°C) | 0.4 in | |
| October | 63°F (17°C) | 1.7 in | |
| November | 54°F (12°C) | 4.3 in | |
| December | 47°F (8°C) | 4.8 in | Coldest |
Sonoma has a seasonal temperature swing of 23°F / from 47°F in December to 70°F in August. Total annual precipitation is 30.0 inches, with January being the wettest month (6.4") and July the driest (0.0").