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San Andreas, CA
Full City Profile · California · Calaveras County County
1.9
/5.0
D
Poor
2,884
Population
288/sq mi density
$42,231
Median Income
$27,448 per capita
$384,300
Home Value
$339,552 Zillow
$1,291
Median Rent
39.6% income on rent
63°F
Avg Temperature
326 sunny days/yr
375
Violent Crime/100K
2,492 property/100K
D
Overall
1.9 / 5.0
Below average overall score based on economy, affordability, safety and education
C+
Economy
2.8 / 5.0
$42,231 median income, 1.0% unemployment
D
Affordability
1.5 / 5.0
$384,300 home value, $1,291/mo rent
F
Safety
1.0 / 5.0
375 violent crimes/100K
C
Education
2.5 / 5.0
18.3% bachelor's degree or higher
San Andreas enjoys a temperate climate with an average annual temperature of 63°F (17°C). Winters average 48°F in January while summers reach 79°F in July. The area gets 326 sunny days per year. Annual precipitation totals 22.9 inches. The area receives 0.0 inches of snow annually. Air quality is rated Good with a median AQI of 48.
Temperature
48°F Jan (9°C)
79°F Jul (26°C)
| Annual Average | 62.6°F |
| 16% above US avg | |
| January Average | 48°F (9°C) |
| July Average | 79°F (26°C) |
| Sunny Days | 326 days/yr |
Geography
| Elevation | 1,117 ft (340 m) |
| Area | 10.0 sq mi (25.9 km²) |
| Population Density | 288/sq mi |
| Coordinates | 38.1927°N, 120.6732°W |
| Timezone | America/Los_Angeles |
| County | Calaveras County County |
| Nearest Airport | Sacramento International (SMF) 61 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 48.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0414 ppm |
| PM2.5 (Fine Particles) | 5.6 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 86.6 / 100 |
| Social Vulnerability | 57.9 / 100 |
| Community Resilience | 39.5 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Relatively High |
| Flood | Relatively Moderate |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively High |
| Lightning | Relatively Low |
| Drought | Relatively High |
| Cold Wave | No Rating |
| Landslide | Relatively Moderate |
| Volcano | Very Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Tsunami History
1 tsunami 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 | 137 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Nearby Volcanoes
3 volcanoes within 200 km. Closest: Mono Lake Volcanic Field (145 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Mono Lake Volcanic Field | Pyroclastic cone(s) | 2,121 m (6,959 ft) | 1790 | 145 km |
| Mono-Inyo Craters | Lava dome(s) | 2,796 m (9,173 ft) | 1380 | 150 km |
| Mammoth Mountain | Lava dome(s) | 3,369 m (11,053 ft) | 1260 | 157 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 48°F (9°C) | 5.8 in | Wettest |
| February | 49°F (10°C) | 5.0 in | |
| March | 52°F (11°C) | 5.0 in | |
| April | 56°F (13°C) | 2.3 in | |
| May | 63°F (17°C) | 0.8 in | |
| June | 71°F (22°C) | 0.2 in | |
| July | 79°F (26°C) | 0.1 in | Warmest, Driest |
| August | 76°F (25°C) | 0.2 in | |
| September | 72°F (22°C) | 0.6 in | |
| October | 64°F (18°C) | 1.7 in | |
| November | 52°F (11°C) | 4.2 in | |
| December | 45°F (7°C) | 4.3 in | Coldest |
San Andreas has a seasonal temperature swing of 34°F / from 45°F in December to 79°F in July. Total annual precipitation is 30.2 inches, with January being the wettest month (5.8") and July the driest (0.1").