Alta Sierra CDP (Nevada County), CA
Full City Profile · California · Yuba County County
4.2
/5.0
A
Great
7,061
Population
849/sq mi density
$99,576
Median Income
$49,657 per capita
$560,600
Home Value
$499,888 Zillow
$2,033
Median Rent
35.6% income on rent
56°F
Avg Temperature
A
Overall
4.2 / 5.0
Strong
A+
Economy
4.7 / 5.0
$99,576 median income, 3.8% unemployment
B
Affordability
3.5 / 5.0
$560,600 home value, $2,033/mo rent
A
Education
4.4 / 5.0
42.0% bachelor's degree or higher
Alta Sierra CDP (Nevada County) enjoys a temperate climate with an average annual temperature of 56°F (13°C). Winters average 43°F in January while summers reach 73°F in July. Annual precipitation totals 53.2 inches. The area receives 8.6 inches of snow annually.
Temperature
43°F Jan (6°C)
73°F Jul (23°C)
| Annual Average | 56.1°F |
| 4% above US avg | |
| January Average | 43°F (6°C) |
| July Average | 73°F (23°C) |
Geography
| Elevation | 2,083 ft (635 m) |
| Area | 8.3 sq mi (21.5 km²) |
| Population Density | 849/sq mi |
| Coordinates | 39.1262°N, 121.0491°W |
| Timezone | America/Los_Angeles |
| County | Yuba County County |
| Nearest Airport | Sacramento International (SMF) 42 miles away |
Precipitation & Snow
Air Quality
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 80.9 / 100 |
| Social Vulnerability | 30.4 / 100 |
| Community Resilience | 36.6 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Relatively Moderate |
| Flood | Relatively Moderate |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Relatively Low |
| Winter Weather | Very Low |
| 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
3 volcanoes within 200 km. Closest: Clear Lake (150 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Clear Lake | Volcanic field | 1,439 m (4,721 ft) | Unknown | 150 km |
| Lassen Volcanic Center | Stratovolcano | 3,187 m (10,456 ft) | 1917 | 157 km |
| Soda Lakes | Maar(s) | 1,251 m (4,104 ft) | Unknown | 193 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 43°F (6°C) | 9.3 in | |
| February | 45°F (7°C) | 9.0 in | |
| March | 48°F (9°C) | 8.2 in | |
| April | 51°F (11°C) | 4.4 in | |
| May | 59°F (15°C) | 2.5 in | |
| June | 66°F (19°C) | 0.7 in | |
| July | 73°F (23°C) | 0.0 in | Warmest, Driest |
| August | 72°F (22°C) | 0.1 in | |
| September | 67°F (20°C) | 0.4 in | |
| October | 58°F (15°C) | 2.6 in | |
| November | 48°F (9°C) | 5.5 in | |
| December | 43°F (6°C) | 10.5 in | Coldest, Wettest |
Alta Sierra CDP (Nevada County) has a seasonal temperature swing of 30°F / from 43°F in December to 73°F in July. Total annual precipitation is 53.2 inches, with December being the wettest month (10.5") and July the driest (0.0").