Stonyford, CA
Full City Profile · California · Glenn County County
1.9
/5.0
D
Poor
98
Population
70/sq mi density
59°F
Avg Temperature
D
Overall
1.9 / 5.0
Below average overall score based on economy, affordability, safety and education
D
Education
1.9 / 5.0
10.8% bachelor's degree or higher
Stonyford 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. Annual precipitation totals 22.6 inches. The area receives 0.5 inches of snow annually. Air quality is rated Good with a median AQI of 39.
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) |
Geography
| Elevation | 1,192 ft (363 m) |
| Area | 2.9 sq mi (7.5 km²) |
| Population Density | 70/sq mi |
| Coordinates | 39.3695°N, 122.5438°W |
| Timezone | America/Los_Angeles |
| County | Glenn County County |
| Nearest Airport | Chico Regional (CIC) 45 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 39.0 |
| Rating | Good |
| Good Days % | 79.8% |
| Unhealthy Days | 0 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0417 ppm |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 74.4 / 100 |
| Social Vulnerability | 14.8 / 100 |
| Community Resilience | 15.1 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively Moderate |
| Wildfire | Relatively Moderate |
| Flood | Relatively Low |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Relatively Low |
| Winter Weather | Very Low |
| Lightning | Very Low |
| Drought | Relatively High |
| Cold Wave | No Rating |
| Landslide | Relatively Low |
| Volcano | Very Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Nearby Volcanoes
2 volcanoes within 200 km. Closest: Clear Lake (49 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Clear Lake | Volcanic field | 1,439 m (4,721 ft) | Unknown | 49 km |
| Lassen Volcanic Center | Stratovolcano | 3,187 m (10,456 ft) | 1917 | 153 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 44°F (7°C) | 5.2 in | Coldest, Wettest |
| February | 47°F (8°C) | 4.5 in | |
| March | 51°F (10°C) | 3.2 in | |
| April | 55°F (13°C) | 1.2 in | |
| May | 63°F (17°C) | 1.0 in | |
| June | 71°F (22°C) | 0.4 in | |
| July | 77°F (25°C) | 0.1 in | Warmest, Driest |
| August | 75°F (24°C) | 0.1 in | |
| September | 71°F (22°C) | 0.2 in | |
| October | 62°F (17°C) | 0.9 in | |
| November | 51°F (11°C) | 2.2 in | |
| December | 45°F (7°C) | 3.8 in |
Stonyford has a seasonal temperature swing of 33°F / from 44°F in January to 77°F in July. Total annual precipitation is 22.6 inches, with January being the wettest month (5.2") and July the driest (0.1").