Hot semi-arid

Costa Mesa, California

Orange County, California · Population 111k · 108 ft elevation

Living in Costa Mesa

Costa Mesa has a hot semi-arid climate: pleasantly warm summers (July highs around 79°F) and very mild winters (January lows around 48°F).

Precipitation is very dry at about 11″ a year, and it essentially never sees snow.

Skies are exceptionally sunny (74% of possible sunshine). Summers get sticky, with about 27 muggy days a year.

Air quality is poor: a median AQI of 53, with about 13 unhealthy-air days in the latest year.

There is plenty to explore outdoors around Costa Mesa: about 13% of the land within 30 miles is public (parks, national forest and the like), and the terrain rises and falls about 2,500 ft around town.

Costa Mesa at a glance

Population
111k
Elevation
108 ft
Average daily high
72°F67th percentile
Average daily low
57°F87th percentile
Annual precipitation
11″4th percentile
Annual snowfall
0″0th percentile
Sunshine hours per year
3,280 hrs87th percentile
Median AQI
5389th percentile
Median home value
$1.1M97th percentile
Median rent
$2,395/mo94th percentile
Median household income
$110k80th percentile
Property tax rate
0.63%19th percentile
Top state income-tax rate
13.3%
Sales tax (state + local)
8.8%
Unemployment rate
4.9%
Homes with broadband
95%76th percentile
Walkability index
14.192th percentile
Average commute
22 min
Math proficiency (8th grade)
50%58th percentile
Reading proficiency (8th grade)
55%
Violent crime rate
543 per 100k90th percentile
Property crime rate
2,094 per 100k
Overall natural-hazard risk
10093th percentile
Outdoor access
8483th percentile
Public land within 10 miles
5%
Public land within 30 miles
13%
Mountain relief within 30 miles
2,493 ft

Climate by month

Average monthly weather in Costa Mesa, California
MonthHighLowPrecipitationSnowSunshine
Jan67°F48°F2.6″—239 hrs
Feb67°F50°F2.6″—229 hrs
Mar68°F52°F1.6″—278 hrs
Apr70°F55°F0.5″—303 hrs
May71°F59°F0.3″—305 hrs
Jun74°F62°F0.0″—269 hrs
Jul79°F66°F0.0″—314 hrs
Aug80°F67°F0.0″—318 hrs
Sep80°F65°F0.1″—286 hrs
Oct76°F59°F0.5″—264 hrs
Nov72°F53°F0.8″—244 hrs
Dec66°F48°F2.0″—231 hrs

Near Costa Mesa

Largest places in California

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