Twain, CA
Full City Profile · California · Plumas County County
2.1
/5.0
C
Fair
414
Population
58/sq mi density
50°F
Avg Temperature
C
Overall
2.1 / 5.0
Fair overall score based on economy, affordability, safety and education
C
Education
2.1 / 5.0
14.0% bachelor's degree or higher
Twain experiences four distinct seasons with an average annual temperature of 50°F (10°C). Winters average 35°F in January while summers reach 68°F in July. Annual precipitation totals 41.7 inches. The area receives 28.4 inches of snow annually. Air quality is rated Good with a median AQI of 48.
Temperature
35°F Jan (1°C)
68°F Jul (20°C)
| Annual Average | 50.0°F |
| 7% below US avg | |
| January Average | 35°F (1°C) |
| July Average | 68°F (20°C) |
Geography
| Elevation | 4,458 ft (1,359 m) |
| Area | 7.2 sq mi (18.6 km²) |
| Population Density | 58/sq mi |
| Coordinates | 40.0355°N, 121.0404°W |
| Timezone | America/Los_Angeles |
| County | Plumas County County |
| Nearest Airport | Chico Regional (CIC) 48 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 48.0 |
| Rating | Good |
| Good Days % | 51.4% |
| Unhealthy Days | 16 |
Air Pollutants (EPA 2023)
| PM2.5 (Fine Particles) | 14.0 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 86.4 / 100 |
| Social Vulnerability | 91.4 / 100 |
| Community Resilience | 69.7 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively Moderate |
| Wildfire | Relatively High |
| Flood | Relatively Moderate |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Very Low |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively Moderate |
| Drought | Relatively Low |
| Cold Wave | No Rating |
| Landslide | Relatively Moderate |
| Volcano | Relatively Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Nearby Volcanoes
5 volcanoes within 200 km. Closest: Lassen Volcanic Center (64 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Lassen Volcanic Center | Stratovolcano | 3,187 m (10,456 ft) | 1917 | 64 km |
| Medicine Lake | Shield | 2,412 m (7,913 ft) | 1060 | 180 km |
| Shasta | Stratovolcano | 4,317 m (14,163 ft) | 1250 | 181 km |
| Clear Lake | Volcanic field | 1,439 m (4,721 ft) | Unknown | 190 km |
| Soda Lakes | Maar(s) | 1,251 m (4,104 ft) | Unknown | 194 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 35°F (1°C) | 7.7 in | Wettest |
| February | 38°F (3°C) | 7.6 in | |
| March | 43°F (6°C) | 6.7 in | |
| April | 47°F (8°C) | 3.1 in | |
| May | 55°F (13°C) | 1.9 in | |
| June | 62°F (17°C) | 0.7 in | |
| July | 68°F (20°C) | 0.1 in | Warmest, Driest |
| August | 67°F (19°C) | 0.1 in | |
| September | 61°F (16°C) | 0.4 in | |
| October | 51°F (11°C) | 1.9 in | |
| November | 40°F (5°C) | 4.1 in | |
| December | 34°F (1°C) | 7.3 in | Coldest |
Twain has a seasonal temperature swing of 34°F / from 34°F in December to 68°F in July. Total annual precipitation is 41.7 inches, with January being the wettest month (7.7") and July the driest (0.1").