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McSwain, CA
Full City Profile · California · Merced County County
3.5
/5.0
B+
Good
5,556
Population
921/sq mi density
$140,173
Median Income
$72,505 per capita
$639,800
Home Value
$415,897 Zillow
$1,205
Median Rent
22.2% income on rent
62°F
Avg Temperature
330 sunny days/yr
628
Violent Crime/100K
3,536 property/100K
B+
Overall
3.5 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.8 / 5.0
$140,173 median income, 1.8% unemployment
A
Affordability
4.1 / 5.0
$639,800 home value, $1,205/mo rent
F
Safety
1.0 / 5.0
628 violent crimes/100K (65% above avg)
A
Education
4.2 / 5.0
40.1% bachelor's degree or higher
McSwain enjoys a temperate climate with an average annual temperature of 62°F (17°C). Winters average 46°F in January while summers reach 78°F in July. The area gets 330 sunny days per year. Annual precipitation totals 12.5 inches. The area receives 0.0 inches of snow annually. Air quality is rated Good with a median AQI of 48.
Temperature
46°F Jan (8°C)
78°F Jul (26°C)
| Annual Average | 61.6°F |
| 14% above US avg | |
| January Average | 46°F (8°C) |
| July Average | 78°F (26°C) |
| Sunny Days | 330 days/yr |
Geography
| Elevation | 143 ft (44 m) |
| Area | 6.0 sq mi (15.6 km²) |
| Population Density | 921/sq mi |
| Coordinates | 37.3145°N, 120.5868°W |
| Timezone | America/Los_Angeles |
| County | Merced County County |
| Nearest Airport | Merced Yosemite Regional (MCE) 5 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 48.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0467 ppm |
| NO₂ (Nitrogen Dioxide) | 10.3 ppb |
| PM2.5 (Fine Particles) | 9.0 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 96.9 / 100 |
| Social Vulnerability | 61.7 / 100 |
| Community Resilience | 7.3 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Earthquake | Relatively High |
| Wildfire | Relatively Moderate |
| Flood | Relatively High |
| Hail | Relatively Low |
| Strong Wind | Relatively Low |
| Heat Wave | Relatively High |
| Winter Weather | Very Low |
| Lightning | Relatively High |
| Drought | Very High |
| Cold Wave | No Rating |
| Landslide | Very Low |
| Volcano | 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: 4.5 m (15 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1868 | N. CALIFORNIA | Eruption + Earthquake | 4.5 m | 30 | 140 km |
| 1989 | N. CALIFORNIA | Earthquake | 1.0 m | 62 | 119 km |
| 1901 | MONTEREY BAY, N. CALIFORNIA | Eruption + Earthquake | — | — | 146 km |
| 1865 | N. CALIFORNIA | Eruption + Earthquake | — | — | 117 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Nearby Volcanoes
3 volcanoes within 200 km. Closest: Mammoth Mountain (142 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Mammoth Mountain | Lava dome(s) | 3,369 m (11,053 ft) | 1260 | 142 km |
| Mono-Inyo Craters | Lava dome(s) | 2,796 m (9,173 ft) | 1380 | 148 km |
| Mono Lake Volcanic Field | Pyroclastic cone(s) | 2,121 m (6,959 ft) | 1790 | 157 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 46°F (8°C) | 2.2 in | Wettest |
| February | 50°F (10°C) | 2.2 in | |
| March | 55°F (13°C) | 1.9 in | |
| April | 60°F (16°C) | 0.8 in | |
| May | 67°F (19°C) | 0.3 in | |
| June | 73°F (23°C) | 0.1 in | |
| July | 78°F (26°C) | 0.0 in | Warmest, Driest |
| August | 75°F (24°C) | 0.0 in | |
| September | 72°F (22°C) | 0.2 in | |
| October | 64°F (18°C) | 0.7 in | |
| November | 53°F (12°C) | 1.5 in | |
| December | 44°F (7°C) | 1.5 in | Coldest |
McSwain has a seasonal temperature swing of 34°F / from 44°F in December to 78°F in July. Total annual precipitation is 11.6 inches, with January being the wettest month (2.2") and July the driest (0.0").