Salmon Creek, CA
Full City Profile · California · Sonoma County County
5.0
/5.0
A+
Excellent
28
Population
25/sq mi density
54°F
Avg Temperature
A+
Overall
5.0 / 5.0
Strong
A+
Education
5.0 / 5.0
100.0% bachelor's degree or higher
Salmon Creek experiences four distinct seasons with an average annual temperature of 54°F (12°C). Winters average 50°F in January while summers reach 57°F in July. Annual precipitation totals 28.9 inches. The area receives 0.0 inches of snow annually. Air quality is rated Good with a median AQI of 19.
Temperature
50°F Jan (10°C)
57°F Jul (14°C)
| Annual Average | 53.5°F |
| 1% below US avg | |
| January Average | 50°F (10°C) |
| July Average | 57°F (14°C) |
Geography
| Elevation | 80 ft (24 m) |
| Area | 1.1 sq mi (2.9 km²) |
| Population Density | 25/sq mi |
| Coordinates | 38.3462°N, 123.0593°W |
| Timezone | America/Los_Angeles |
| County | Sonoma County County |
| Nearest Airport | San Francisco International (SFO) 63 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)
Tsunami History
3 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 | 111 km |
| 1856 | N. CALIFORNIA | Eruption + Earthquake | 0.6 m | - | 115 km |
| 1906 | N. CALIFORNIA | Eruption + Earthquake | 0.1 m | - | 87 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Nearby Volcanoes
1 volcano within 200 km. Closest: Clear Lake (74 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Clear Lake | Volcanic field | 1,439 m (4,721 ft) | Unknown | 74 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 50°F (10°C) | 5.3 in | |
| February | 51°F (10°C) | 6.0 in | Wettest |
| March | 51°F (11°C) | 3.9 in | |
| April | 52°F (11°C) | 2.2 in | |
| May | 53°F (12°C) | 1.2 in | |
| June | 55°F (13°C) | 0.5 in | |
| July | 57°F (14°C) | 0.2 in | |
| August | 57°F (14°C) | 0.1 in | Driest |
| September | 58°F (15°C) | 0.2 in | Warmest |
| October | 56°F (13°C) | 1.8 in | |
| November | 53°F (12°C) | 2.9 in | |
| December | 50°F (10°C) | 4.6 in | Coldest |
Salmon Creek has a seasonal temperature swing of 8°F / from 50°F in December to 58°F in September. Total annual precipitation is 28.9 inches, with February being the wettest month (6.0") and August the driest (0.1").