Rail Road Flat, CA
Full City Profile · California · Amador County County
3.5
/5.0
B+
Good
696
Population
40/sq mi density
$85,656
Median Income
$31,993 per capita
$366,900
Home Value
$301,575 Zillow
$743
Median Rent
13.2% income on rent
50°F
Avg Temperature
B+
Overall
3.5 / 5.0
Good overall score based on economy, affordability, safety and education
B+
Economy
3.5 / 5.0
$85,656 median income, 5.6% unemployment
A
Affordability
4.3 / 5.0
$366,900 home value, $743/mo rent
C+
Education
2.8 / 5.0
22.5% bachelor's degree or higher
Rail Road Flat experiences four distinct seasons with an average annual temperature of 50°F (10°C). Winters average 38°F in January while summers reach 68°F in July. Annual precipitation totals 40.6 inches. The area receives 3.7 inches of snow annually. Air quality is rated Good with a median AQI of 40.
Temperature
38°F Jan (3°C)
68°F Jul (20°C)
| Annual Average | 50.3°F |
| 7% below US avg | |
| January Average | 38°F (3°C) |
| July Average | 68°F (20°C) |
Geography
| Elevation | 2,746 ft (837 m) |
| Area | 33.2 sq mi (85.9 km²) |
| Population Density | 40/sq mi |
| Coordinates | 38.3356°N, 120.5501°W |
| Timezone | America/Los_Angeles |
| County | Amador County County |
| Nearest Airport | Sacramento International (SMF) 62 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 40.0 |
| Rating | Good |
| Good Days % | 78.3% |
| Unhealthy Days | 6 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0404 ppm |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 79.2 / 100 |
| Social Vulnerability | 43.9 / 100 |
| Community Resilience | 35.3 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Relatively High |
| Flood | Relatively Low |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively High |
| Lightning | Relatively Low |
| Drought | Relatively High |
| Cold Wave | No Rating |
| Landslide | Relatively Moderate |
| Volcano | Very Low |
| Avalanche | Relatively High |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Nearby Volcanoes
4 volcanoes within 200 km. Closest: Mono Lake Volcanic Field (138 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Mono Lake Volcanic Field | Pyroclastic cone(s) | 2,121 m (6,959 ft) | 1790 | 138 km |
| Mono-Inyo Craters | Lava dome(s) | 2,796 m (9,173 ft) | 1380 | 146 km |
| Mammoth Mountain | Lava dome(s) | 3,369 m (11,053 ft) | 1260 | 154 km |
| Soda Lakes | Maar(s) | 1,251 m (4,104 ft) | Unknown | 197 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 38°F (3°C) | 7.3 in | |
| February | 38°F (3°C) | 6.9 in | |
| March | 40°F (5°C) | 6.4 in | |
| April | 45°F (7°C) | 3.4 in | |
| May | 52°F (11°C) | 2.1 in | |
| June | 61°F (16°C) | 0.5 in | |
| July | 68°F (20°C) | 0.0 in | Warmest, Driest |
| August | 67°F (20°C) | 0.0 in | |
| September | 62°F (17°C) | 0.3 in | |
| October | 53°F (12°C) | 2.2 in | |
| November | 43°F (6°C) | 4.0 in | |
| December | 37°F (3°C) | 7.5 in | Coldest, Wettest |
Rail Road Flat has a seasonal temperature swing of 31°F / from 37°F in December to 68°F in July. Total annual precipitation is 40.6 inches, with December being the wettest month (7.5") and July the driest (0.0").