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Lewiston, CA
Full City Profile · California · Shasta County County
2.5
/5.0
C+
Fair
2,434
Population
122/sq mi density
$58,125
Median Income
$21,945 per capita
$328,900
Home Value
$279,286 Zillow
$1,056
Median Rent
39.8% income on rent
56°F
Avg Temperature
275 sunny days/yr
667
Violent Crime/100K
4,292 property/100K
C+
Overall
2.5 / 5.0
Fair overall score based on economy, affordability, safety and education
B+
Economy
3.8 / 5.0
$58,125 median income, 1.9% unemployment
B
Affordability
3.5 / 5.0
$328,900 home value, $1,056/mo rent
F
Safety
1.0 / 5.0
667 violent crimes/100K (76% above avg)
D
Education
1.6 / 5.0
7.9% bachelor's degree or higher
Lewiston enjoys a temperate climate with an average annual temperature of 56°F (13°C). Winters average 41°F in January while summers reach 75°F in July. The area gets 275 sunny days per year. Annual precipitation totals 32.4 inches. The area receives 6.4 inches of snow annually. Air quality is rated Good with a median AQI of 48.
Temperature
41°F Jan (5°C)
75°F Jul (24°C)
| Annual Average | 56.2°F |
| 4% above US avg | |
| January Average | 41°F (5°C) |
| July Average | 75°F (24°C) |
| Sunny Days | 275 days/yr |
Geography
| Elevation | 2,140 ft (652 m) |
| Area | 20.0 sq mi (51.8 km²) |
| Population Density | 122/sq mi |
| Coordinates | 40.6969°N, 122.8225°W |
| Timezone | America/Los_Angeles |
| County | Shasta County County |
| Nearest Airport | Redding Regional (RDD) 31 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 48.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0439 ppm |
| PM2.5 (Fine Particles) | 7.1 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 93.4 / 100 |
| Social Vulnerability | 41.1 / 100 |
| Community Resilience | 47.7 / 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 Moderate |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively Moderate |
| Drought | Relatively Moderate |
| Cold Wave | Very Low |
| Landslide | Relatively Moderate |
| Volcano | Relatively Moderate |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Tsunami History
1 tsunami recorded within 500 km. Highest wave on record: 1.8 m (6 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1992 | CAPE MENDOCINO, N. CALIFORNIA | Earthquake | 1.8 m | — | 131 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Nearby Volcanoes
4 volcanoes within 200 km. Closest: Shasta (95 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Shasta | Stratovolcano | 4,317 m (14,163 ft) | 1250 | 95 km |
| Lassen Volcanic Center | Stratovolcano | 3,187 m (10,456 ft) | 1917 | 113 km |
| Medicine Lake | Shield | 2,412 m (7,913 ft) | 1060 | 147 km |
| Clear Lake | Volcanic field | 1,439 m (4,721 ft) | Unknown | 192 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 41°F (5°C) | 7.0 in | Wettest |
| February | 41°F (5°C) | 5.7 in | |
| March | 44°F (7°C) | 5.5 in | |
| April | 48°F (9°C) | 2.5 in | |
| May | 56°F (13°C) | 1.3 in | |
| June | 63°F (17°C) | 0.7 in | |
| July | 75°F (24°C) | 0.2 in | Warmest, Driest |
| August | 69°F (21°C) | 0.5 in | |
| September | 64°F (18°C) | 1.1 in | |
| October | 55°F (13°C) | 2.6 in | |
| November | 44°F (6°C) | 6.2 in | |
| December | 38°F (3°C) | 6.6 in | Coldest |
Lewiston has a seasonal temperature swing of 37°F / from 38°F in December to 75°F in July. Total annual precipitation is 40.0 inches, with January being the wettest month (7.0") and July the driest (0.2").