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Clay, CA
Full City Profile · California · Sacramento County County
2.8
/5.0
C+
Fair
1,325
Population
196/sq mi density
$115,313
Median Income
$40,149 per capita
$732,700
Home Value
$777,363 Zillow
$1,435
Median Rent
51.0% income on rent
62°F
Avg Temperature
330 sunny days/yr
284
Violent Crime/100K
2,327 property/100K
C+
Overall
2.8 / 5.0
Fair overall score based on economy, affordability, safety and education
A+
Economy
4.9 / 5.0
$115,313 median income, 2.5% unemployment
B
Affordability
3.1 / 5.0
$732,700 home value, $1,435/mo rent
F
Safety
1.0 / 5.0
284 violent crimes/100K
C
Education
2.3 / 5.0
15.8% bachelor's degree or higher
Clay enjoys a temperate climate with an average annual temperature of 62°F (17°C). Winters average 48°F in January while summers reach 76°F in July. The area gets 330 sunny days per year. Annual precipitation totals 18.4 inches. The area receives 0.0 inches of snow annually. Air quality is rated Good with a median AQI of 48.
Temperature
48°F Jan (9°C)
76°F Jul (24°C)
| Annual Average | 62.2°F |
| 15% above US avg | |
| January Average | 48°F (9°C) |
| July Average | 76°F (24°C) |
| Sunny Days | 330 days/yr |
Geography
| Elevation | 136 ft (41 m) |
| Area | 6.8 sq mi (17.5 km²) |
| Population Density | 196/sq mi |
| Coordinates | 38.3140°N, 121.1596°W |
| Timezone | America/Los_Angeles |
| County | Sacramento County County |
| Nearest Airport | Sacramento International (SMF) 35 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 48.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0409 ppm |
| NO₂ (Nitrogen Dioxide) | 8.1 ppb |
| SO₂ (Sulfur Dioxide) | 0.17 ppb |
| CO (Carbon Monoxide) | 0.47 ppm |
| PM2.5 (Fine Particles) | 7.8 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 98.1 / 100 |
| Social Vulnerability | 37.4 / 100 |
| Community Resilience | 57.0 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Earthquake | Relatively High |
| Wildfire | Relatively Moderate |
| Flood | Relatively High |
| Hail | Relatively Low |
| Strong Wind | Very Low |
| Heat Wave | Relatively Moderate |
| Winter Weather | Very Low |
| Lightning | Relatively Moderate |
| Drought | Relatively High |
| Cold Wave | No Rating |
| Landslide | Relatively Low |
| Coastal Flood | No Rating |
| Volcano | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Tsunami History
4 tsunamis recorded within 500 km. Highest wave on record: 4.5 m (15 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1868 | N. CALIFORNIA | Eruption + Earthquake | 4.5 m | 30 | 107 km |
| 1856 | N. CALIFORNIA | Eruption + Earthquake | 0.6 m | — | 135 km |
| 1906 | N. CALIFORNIA | Eruption + Earthquake | 0.1 m | — | 136 km |
| 1865 | N. CALIFORNIA | Eruption + Earthquake | — | — | 140 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Nearby Volcanoes
3 volcanoes within 200 km. Closest: Clear Lake (158 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Clear Lake | Volcanic field | 1,439 m (4,721 ft) | Unknown | 158 km |
| Mono Lake Volcanic Field | Pyroclastic cone(s) | 2,121 m (6,959 ft) | 1790 | 189 km |
| Mono-Inyo Craters | Lava dome(s) | 2,796 m (9,173 ft) | 1380 | 195 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 48°F (9°C) | 4.0 in | Wettest |
| February | 51°F (10°C) | 3.5 in | |
| March | 54°F (12°C) | 3.4 in | |
| April | 59°F (15°C) | 1.4 in | |
| May | 66°F (19°C) | 0.5 in | |
| June | 73°F (23°C) | 0.2 in | |
| July | 76°F (24°C) | 0.1 in | Warmest, Driest |
| August | 76°F (24°C) | 0.1 in | |
| September | 72°F (22°C) | 0.4 in | |
| October | 64°F (18°C) | 1.2 in | |
| November | 53°F (12°C) | 2.9 in | |
| December | 46°F (8°C) | 2.8 in | Coldest |
Clay has a seasonal temperature swing of 30°F / from 46°F in December to 76°F in July. Total annual precipitation is 20.4 inches, with January being the wettest month (4.0") and July the driest (0.1").