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Spring Valley CDP (Lake County), CA
Full City Profile · California · Lake County County
2.5
/5.0
C+
Fair
775
Population
157/sq mi density
$43,816
Median Income
$28,141 per capita
$358,900
Home Value
$255,938 Zillow
$1,420
Median Rent
12.8% income on rent
59°F
Avg Temperature
326 sunny days/yr
650
Violent Crime/100K
4,566 property/100K
C+
Overall
2.5 / 5.0
Fair overall score based on economy, affordability, safety and education
C+
Economy
2.8 / 5.0
$43,816 median income, 0.0% unemployment
C
Affordability
2.0 / 5.0
$358,900 home value, $1,420/mo rent
F
Safety
1.0 / 5.0
650 violent crimes/100K (71% above avg)
A
Education
4.0 / 5.0
37.7% bachelor's degree or higher
Spring Valley CDP (Lake County) enjoys a temperate climate with an average annual temperature of 59°F (15°C). Winters average 44°F in January while summers reach 77°F in July. The area gets 326 sunny days per year. Annual precipitation totals 21.8 inches. The area receives 1.4 inches of snow annually. Air quality is rated Good with a median AQI of 48.
Temperature
44°F Jan (7°C)
77°F Jul (25°C)
| Annual Average | 59.3°F |
| 10% above US avg | |
| January Average | 44°F (7°C) |
| July Average | 77°F (25°C) |
| Sunny Days | 326 days/yr |
Geography
| Elevation | 1,329 ft (405 m) |
| Area | 5.0 sq mi (12.9 km²) |
| Population Density | 157/sq mi |
| Coordinates | 39.0761°N, 122.5845°W |
| Timezone | America/Los_Angeles |
| County | Lake County County |
| Nearest Airport | Sacramento International (SMF) 60 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 48.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0349 ppm |
| PM2.5 (Fine Particles) | 4.1 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 93.0 / 100 |
| Social Vulnerability | 70.6 / 100 |
| Community Resilience | 24.5 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively Moderate |
| Wildfire | Relatively High |
| Flood | Relatively High |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Very Low |
| Drought | Relatively High |
| Cold Wave | No Rating |
| Landslide | Relatively High |
| Volcano | Relatively Moderate |
| Avalanche | Relatively High |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Nearby Volcanoes
2 volcanoes within 200 km. Closest: Clear Lake (20 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Clear Lake | Volcanic field | 1,439 m (4,721 ft) | Unknown | 20 km |
| Lassen Volcanic Center | Stratovolcano | 3,187 m (10,456 ft) | 1917 | 182 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 44°F (7°C) | 6.3 in | Wettest |
| February | 46°F (8°C) | 4.9 in | |
| March | 48°F (9°C) | 4.0 in | |
| April | 52°F (11°C) | 1.7 in | |
| May | 59°F (15°C) | 0.5 in | |
| June | 67°F (19°C) | 0.2 in | |
| July | 77°F (25°C) | 0.1 in | Warmest, Driest |
| August | 73°F (23°C) | 0.2 in | |
| September | 68°F (20°C) | 0.6 in | |
| October | 60°F (15°C) | 1.9 in | |
| November | 49°F (10°C) | 4.9 in | |
| December | 44°F (6°C) | 5.4 in | Coldest |
Spring Valley CDP (Lake County) has a seasonal temperature swing of 34°F / from 44°F in December to 77°F in July. Total annual precipitation is 30.8 inches, with January being the wettest month (6.3") and July the driest (0.1").