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Arnold, CA
Full City Profile · California · Calaveras County County
3.4
/5.0
B
Good
2,276
Population
262/sq mi density
$92,589
Median Income
$64,400 per capita
$508,400
Home Value
$412,314 Zillow
$1,679
Median Rent
23.2% income on rent
50°F
Avg Temperature
290 sunny days/yr
460
Violent Crime/100K
7,000 property/100K
B
Overall
3.4 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.6 / 5.0
$92,589 median income, 3.5% unemployment
B+
Affordability
3.6 / 5.0
$508,400 home value, $1,679/mo rent
F
Safety
1.0 / 5.0
460 violent crimes/100K (21% above avg)
A
Education
4.3 / 5.0
41.2% bachelor's degree or higher
Arnold experiences four distinct seasons with an average annual temperature of 50°F (10°C). Winters average 38°F in January while summers reach 68°F in July. The area gets 290 sunny days per year. Annual precipitation totals 55.5 inches. The area receives 104.8 inches of snow annually. Air quality is rated Good with a median AQI of 48.
Temperature
38°F Jan (3°C)
68°F Jul (20°C)
| Annual Average | 50.3°F |
| 7% below US avg | |
| January Average | 38°F (3°C) |
| July Average | 68°F (20°C) |
| Sunny Days | 290 days/yr |
Geography
| Elevation | 4,348 ft (1,325 m) |
| Area | 14.9 sq mi (38.5 km²) |
| Population Density | 262/sq mi |
| Coordinates | 38.2490°N, 120.3493°W |
| Timezone | America/Los_Angeles |
| County | Calaveras County County |
| Nearest Airport | Merced Yosemite Regional (MCE) 66 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)
Nearby Volcanoes
4 volcanoes within 200 km. Closest: Mono Lake Volcanic Field (119 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Mono Lake Volcanic Field | Pyroclastic cone(s) | 2,121 m (6,959 ft) | 1790 | 119 km |
| Mono-Inyo Craters | Lava dome(s) | 2,796 m (9,173 ft) | 1380 | 126 km |
| Mammoth Mountain | Lava dome(s) | 3,369 m (11,053 ft) | 1260 | 134 km |
| Soda Lakes | Maar(s) | 1,251 m (4,104 ft) | Unknown | 192 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 38°F (3°C) | 8.2 in | Coldest, Wettest |
| February | 44°F (6°C) | 7.1 in | |
| March | 46°F (8°C) | 7.0 in | |
| April | 50°F (10°C) | 4.1 in | |
| May | 57°F (14°C) | 1.2 in | |
| June | 65°F (18°C) | 0.5 in | |
| July | 68°F (20°C) | 0.2 in | Driest |
| August | 72°F (22°C) | 0.3 in | Warmest |
| September | 67°F (20°C) | 0.9 in | |
| October | 59°F (15°C) | 2.6 in | |
| November | 47°F (8°C) | 6.9 in | |
| December | 41°F (5°C) | 7.0 in |
Arnold has a seasonal temperature swing of 34°F / from 38°F in January to 72°F in August. Total annual precipitation is 46.0 inches, with January being the wettest month (8.2") and July the driest (0.2").