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Los Alamos, CA
Full City Profile · California · Santa Barbara County County
2.0
/5.0
C
Fair
886
Population
984/sq mi density
$53,673
Median Income
$44,049 per capita
$672,100
Home Value
$897,294 Zillow
59°F
Avg Temperature
330 sunny days/yr
120
Violent Crime/100K
1,421 property/100K
C
Overall
2.0 / 5.0
Fair overall score based on economy, affordability, safety and education
B+
Economy
3.8 / 5.0
$53,673 median income, 3.8% unemployment
F
Affordability
1.0 / 5.0
$672,100 home value, /mo rent
F
Safety
1.0 / 5.0
120 violent crimes/100K
C
Education
2.3 / 5.0
16.8% bachelor's degree or higher
Los Alamos enjoys a temperate climate with an average annual temperature of 59°F (15°C). Winters average 54°F in January while summers reach 64°F in July. The area gets 330 sunny days per year. Annual precipitation totals 15.4 inches. The area receives 0.0 inches of snow annually. Air quality is rated Good with a median AQI of 48.
Temperature
54°F Jan (12°C)
64°F Jul (18°C)
| Annual Average | 59.3°F |
| 10% above US avg | |
| January Average | 54°F (12°C) |
| July Average | 64°F (18°C) |
| Sunny Days | 330 days/yr |
Geography
| Elevation | 580 ft (177 m) |
| Area | 3.9 sq mi (10.0 km²) |
| Population Density | 984/sq mi |
| Coordinates | 34.7418°N, 120.2746°W |
| Timezone | America/Los_Angeles |
| County | Santa Barbara County County |
| Nearest Airport | Santa Barbara Municipal (SBA) 36 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 48.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0360 ppm |
| NO₂ (Nitrogen Dioxide) | 1.5 ppb |
| SO₂ (Sulfur Dioxide) | 0.27 ppb |
| CO (Carbon Monoxide) | 0.08 ppm |
| PM2.5 (Fine Particles) | 5.4 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 99.0 / 100 |
| Social Vulnerability | 60.2 / 100 |
| Community Resilience | 60.9 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Hurricane | No Rating |
| Earthquake | Relatively High |
| Wildfire | Relatively High |
| 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 | Very Low |
| Landslide | Very High |
| Coastal Flood | Relatively Low |
| Tsunami | Very Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Tsunami History
4 tsunamis recorded within 500 km. Highest wave on record: 3.4 m (11 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1812 | S. CALIFORNIA | Eruption + Earthquake | 3.4 m | 1 | 69 km |
| 1927 | S. CALIFORNIA | Earthquake | 1.8 m | — | 46 km |
| 1878 | S. CALIFORNIA | Meteorological | 1.0 m | 1 | 64 km |
| 1901 | MONTEREY BAY, N. CALIFORNIA | Eruption + Earthquake | — | — | 141 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 54°F (12°C) | 3.7 in | |
| February | 53°F (11°C) | 3.8 in | Wettest |
| March | 53°F (12°C) | 3.4 in | |
| April | 56°F (13°C) | 1.5 in | |
| May | 59°F (15°C) | 0.3 in | |
| June | 63°F (17°C) | 0.0 in | |
| July | 64°F (18°C) | 0.0 in | Driest |
| August | 68°F (20°C) | 0.0 in | Warmest |
| September | 66°F (19°C) | 0.3 in | |
| October | 63°F (17°C) | 0.6 in | |
| November | 57°F (14°C) | 2.2 in | |
| December | 52°F (11°C) | 2.8 in | Coldest |
Los Alamos has a seasonal temperature swing of 16°F / from 52°F in December to 68°F in August. Total annual precipitation is 18.6 inches, with February being the wettest month (3.8") and July the driest (0.0").