Upper Lake, CA
Full City Profile · California · Lake County County
3.8
/5.0
B+
Good
1,204
Population
704/sq mi density
$104,936
Median Income
$43,841 per capita
$344,000
Home Value
$318,075 Zillow
60°F
Avg Temperature
B+
Overall
3.8 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.6 / 5.0
$104,936 median income, 4.4% unemployment
A+
Affordability
4.8 / 5.0
$344,000 home value, /mo rent
C
Education
2.0 / 5.0
12.5% bachelor's degree or higher
Upper Lake enjoys a temperate climate with an average annual temperature of 60°F (16°C). Winters average 48°F in January while summers reach 75°F in July. Annual precipitation totals 34.8 inches. The area receives 0.0 inches of snow annually. Air quality is rated Good with a median AQI of 32.
Temperature
48°F Jan (9°C)
75°F Jul (24°C)
| Annual Average | 59.8°F |
| 11% above US avg | |
| January Average | 48°F (9°C) |
| July Average | 75°F (24°C) |
Geography
| Elevation | 1,354 ft (413 m) |
| Area | 1.7 sq mi (4.4 km²) |
| Population Density | 704/sq mi |
| Coordinates | 39.1651°N, 122.9052°W |
| Timezone | America/Los_Angeles |
| County | Lake County County |
| Nearest Airport | Chico Regional (CIC) 69 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 32.0 |
| Rating | Good |
| Good Days % | 99.4% |
| Unhealthy Days | 0 |
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 (25 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Clear Lake | Volcanic field | 1,439 m (4,721 ft) | Unknown | 25 km |
| Lassen Volcanic Center | Stratovolcano | 3,187 m (10,456 ft) | 1917 | 190 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 48°F (9°C) | 6.7 in | |
| February | 50°F (10°C) | 6.3 in | |
| March | 53°F (12°C) | 5.3 in | |
| April | 56°F (13°C) | 2.6 in | |
| May | 63°F (17°C) | 1.2 in | |
| June | 69°F (21°C) | 0.3 in | |
| July | 75°F (24°C) | 0.0 in | Warmest, Driest |
| August | 74°F (23°C) | 0.1 in | |
| September | 70°F (21°C) | 0.2 in | |
| October | 62°F (17°C) | 1.8 in | |
| November | 52°F (11°C) | 3.5 in | |
| December | 46°F (8°C) | 6.9 in | Coldest, Wettest |
Upper Lake has a seasonal temperature swing of 29°F / from 46°F in December to 75°F in July. Total annual precipitation is 34.8 inches, with December being the wettest month (6.9") and July the driest (0.0").