Anchor Bay, CA
Full City Profile · California · Sonoma County County
3.5
/5.0
B+
Good
770
Population
219/sq mi density
$82,448
Median Income
$33,294 per capita
60°F
Avg Temperature
B+
Overall
3.5 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.6 / 5.0
$82,448 median income, 0.0% unemployment
C
Education
2.5 / 5.0
18.2% bachelor's degree or higher
Anchor Bay enjoys a temperate climate with an average annual temperature of 60°F (16°C). Winters average 48°F in January while summers reach 75°F in July. Annual precipitation totals 34.8 inches. The area receives 2.5 inches of snow annually. Air quality is rated Good with a median AQI of 19.
Temperature
48°F Jan (9°C)
75°F Jul (24°C)
| Annual Average | 59.8°F |
| 11% above US avg | |
| January Average | 48°F (9°C) |
| July Average | 75°F (24°C) |
Geography
| Elevation | 671 ft (205 m) |
| Area | 3.5 sq mi (9.1 km²) |
| Population Density | 219/sq mi |
| Coordinates | 38.8127°N, 123.5703°W |
| Timezone | America/Los_Angeles |
| County | Sonoma County County |
| Nearest Airport | San Francisco International (SFO) 105 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 19.0 |
| Rating | Good |
| Good Days % | 95.1% |
| Unhealthy Days | 0 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0321 ppm |
| NO₂ (Nitrogen Dioxide) | 5.8 ppb |
| CO (Carbon Monoxide) | 0.29 ppm |
| PM2.5 (Fine Particles) | 5.0 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 99.1 / 100 |
| Social Vulnerability | 29.8 / 100 |
| Community Resilience | 66.2 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively High |
| Wildfire | Relatively High |
| Flood | Relatively High |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Relatively Moderate |
| Winter Weather | Very Low |
| Lightning | Relatively Moderate |
| Drought | Relatively High |
| Cold Wave | No Rating |
| Landslide | Relatively High |
| Coastal Flood | Relatively Moderate |
| Tsunami | Very Low |
| Volcano | Relatively Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Nearby Volcanoes
1 volcano within 200 km. Closest: Clear Lake (71 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Clear Lake | Volcanic field | 1,439 m (4,721 ft) | Unknown | 71 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 48°F (9°C) | 6.7 in | |
| February | 50°F (10°C) | 6.3 in | |
| March | 53°F (12°C) | 5.3 in | |
| April | 56°F (13°C) | 2.6 in | |
| May | 63°F (17°C) | 1.2 in | |
| June | 69°F (21°C) | 0.3 in | |
| July | 75°F (24°C) | 0.0 in | Warmest, Driest |
| August | 74°F (23°C) | 0.1 in | |
| September | 70°F (21°C) | 0.2 in | |
| October | 62°F (17°C) | 1.8 in | |
| November | 52°F (11°C) | 3.5 in | |
| December | 46°F (8°C) | 6.9 in | Coldest, Wettest |
Anchor Bay has a seasonal temperature swing of 29°F / from 46°F in December to 75°F in July. Total annual precipitation is 34.8 inches, with December being the wettest month (6.9") and July the driest (0.0").