Potrero, CA
Full City Profile · California · San Diego County County
3.8
/5.0
B+
Good
423
Population
134/sq mi density
58°F
Avg Temperature
B+
Overall
3.8 / 5.0
Good overall score based on economy, affordability, safety and education
B+
Education
3.8 / 5.0
35.5% bachelor's degree or higher
Potrero enjoys a temperate climate with an average annual temperature of 58°F (14°C). Winters average 48°F in January while summers reach 72°F in July. Annual precipitation totals 12.6 inches. The area receives 0.3 inches of snow annually. Air quality is rated Moderate with a median AQI of 71.
Temperature
48°F Jan (9°C)
72°F Jul (22°C)
| Annual Average | 58.4°F |
| 8% above US avg | |
| January Average | 48°F (9°C) |
| July Average | 72°F (22°C) |
Geography
| Elevation | 2,423 ft (739 m) |
| Area | 3.2 sq mi (8.2 km²) |
| Population Density | 134/sq mi |
| Coordinates | 32.6131°N, 116.6068°W |
| Timezone | America/Los_Angeles |
| County | San Diego County County |
| Nearest Airport | San Diego International (SAN) 35 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 71.0 |
| Rating | Moderate |
| Good Days % | 12.8% |
| Unhealthy Days | 52 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0453 ppm |
| NO₂ (Nitrogen Dioxide) | 13.7 ppb |
| SO₂ (Sulfur Dioxide) | 0.07 ppb |
| CO (Carbon Monoxide) | 0.50 ppm |
| PM2.5 (Fine Particles) | 8.4 μg/m³ |
Natural Hazard Risk
| Overall Risk | Very High |
| Risk Score | 99.7 / 100 |
| Social Vulnerability | 24.8 / 100 |
| Community Resilience | 8.3 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Very Low |
| Earthquake | Relatively High |
| Wildfire | Very High |
| Flood | Very High |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively High |
| Winter Weather | Relatively Low |
| Lightning | Relatively Moderate |
| Drought | Relatively Low |
| Cold Wave | Very Low |
| Landslide | Relatively High |
| Coastal Flood | Relatively Moderate |
| Tsunami | Relatively Low |
| 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: 1.2 m (4 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1862 | S. CALIFORNIA | Eruption + Earthquake | 1.2 m | - | 56 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Nearby Volcanoes
1 volcano within 200 km. Closest: Salton Buttes (113 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Salton Buttes | Lava dome(s) | -40 m (-131 ft) | 210 | 113 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 48°F (9°C) | 2.4 in | |
| February | 48°F (9°C) | 2.8 in | Wettest |
| March | 50°F (10°C) | 1.6 in | |
| April | 53°F (12°C) | 0.7 in | |
| May | 59°F (15°C) | 0.3 in | |
| June | 65°F (19°C) | 0.1 in | Driest |
| July | 72°F (22°C) | 0.2 in | |
| August | 74°F (23°C) | 0.1 in | Warmest |
| September | 69°F (21°C) | 0.7 in | |
| October | 61°F (16°C) | 0.5 in | |
| November | 53°F (12°C) | 0.9 in | |
| December | 47°F (9°C) | 2.3 in | Coldest |
Potrero has a seasonal temperature swing of 27°F / from 47°F in December to 74°F in August. Total annual precipitation is 12.6 inches, with February being the wettest month (2.8") and June the driest (0.1").