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Casmalia, CA
Full City Profile · California · Santa Barbara County County
2.1
/5.0
C
Fair
89
Population
524/sq mi density
59°F
Avg Temperature
330 sunny days/yr
427
Violent Crime/100K
2,960 property/100K
C
Overall
2.1 / 5.0
Fair overall score based on economy, affordability, safety and education
F
Safety
1.0 / 5.0
427 violent crimes/100K (12% above avg)
B
Education
3.2 / 5.0
0.0% bachelor's degree or higher
Casmalia enjoys a temperate climate with an average annual temperature of 59°F (15°C). Winters average 53°F in January while summers reach 64°F in July. The area gets 330 sunny days per year. Annual precipitation totals 13.3 inches. Air quality is rated Good with a median AQI of 48.
Temperature
53°F Jan (12°C)
64°F Jul (18°C)
| Annual Average | 58.6°F |
| 9% above US avg | |
| January Average | 53°F (12°C) |
| July Average | 64°F (18°C) |
| Sunny Days | 330 days/yr |
Geography
| Elevation | 279 ft (85 m) |
| Area | 0.2 sq mi (0.5 km²) |
| Population Density | 524/sq mi |
| Coordinates | 34.8378°N, 120.5310°W |
| Timezone | America/Los_Angeles |
| County | Santa Barbara County County |
| Nearest Airport | San Luis Obispo County Regional (SBP) 25 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 | 92 km |
| 1927 | S. CALIFORNIA | Earthquake | 1.8 m | — | 22 km |
| 1878 | S. CALIFORNIA | Meteorological | 1.0 m | 1 | 42 km |
| 1901 | MONTEREY BAY, N. CALIFORNIA | Eruption + Earthquake | — | — | 129 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 53°F (12°C) | 4.0 in | |
| February | 54°F (12°C) | 4.1 in | Wettest |
| March | 54°F (12°C) | 3.5 in | |
| April | 56°F (13°C) | 1.3 in | |
| May | 58°F (14°C) | 0.4 in | |
| June | 60°F (16°C) | 0.1 in | |
| July | 64°F (18°C) | 0.0 in | Warmest, Driest |
| August | 63°F (17°C) | 0.1 in | |
| September | 63°F (17°C) | 0.4 in | |
| October | 61°F (16°C) | 0.8 in | |
| November | 56°F (14°C) | 2.1 in | |
| December | 52°F (11°C) | 3.0 in | Coldest |
Casmalia has a seasonal temperature swing of 12°F / from 52°F in December to 64°F in July. Total annual precipitation is 19.7 inches, with February being the wettest month (4.1") and July the driest (0.0").