Hot-summer Mediterranean

Clayton, California

Contra Costa County, California · Population 11k · 404 ft elevation

Living in Clayton

Clayton has a hot-summer mediterranean climate: hot summers (July highs around 87°F) and mild winters (January lows around 40°F).

Precipitation is dry at about 16″ a year, and it essentially never sees snow.

Skies are exceptionally sunny (80% of possible sunshine). It never gets truly muggy.

Air quality is moderate: a median AQI of 48 and virtually no unhealthy-air days.

Clayton at a glance

Population
11k
Elevation
404 ft
Average daily high
72°F67th percentile
Average daily low
49°F66th percentile
Annual precipitation
16″10th percentile
Annual snowfall
0″0th percentile
Sunshine hours per year
3,632 hrs93th percentile
Median AQI
4880th percentile
Median home value
$1M97th percentile
Median rent
$3,501/mo99th percentile
Median household income
$172k96th percentile
Property tax rate
0.85%41th percentile
Top state income-tax rate
13.3%
Sales tax (state + local)
8.8%
Unemployment rate
7.0%
Homes with broadband
98%93th percentile
Walkability index
9.865th percentile
Average commute
39 min
Math proficiency (8th grade)
36%33th percentile
Reading proficiency (8th grade)
49%
Violent crime rate
37 per 100k10th percentile
Property crime rate
706 per 100k
Overall natural-hazard risk
9986th percentile
Outdoor access
7776th percentile
Public land within 10 miles
6%
Public land within 30 miles
6%
Mountain relief within 30 miles
1,444 ft

Climate by month

Average monthly weather in Clayton, California
MonthHighLowPrecipitationSnowSunshine
Jan56°F40°F3.2″—176 hrs
Feb61°F43°F3.2″—204 hrs
Mar65°F45°F2.3″—265 hrs
Apr70°F48°F1.1″—310 hrs
May76°F52°F0.5″—381 hrs
Jun83°F56°F0.2″—413 hrs
Jul87°F57°F0.0″—435 hrs
Aug87°F58°F0.0″—407 hrs
Sep84°F57°F0.1″—348 hrs
Oct77°F51°F0.7″—300 hrs
Nov65°F44°F1.6″—222 hrs
Dec57°F39°F3.2″—174 hrs

Near Clayton

Largest places in California

Sources: NOAA climate normals, NASA POWER, EPA air quality, U.S. Census Bureau, FEMA, FBI, EPA walkability and EDFacts. Methodology