Los Angeles County Climate

Los Angeles County, California

JanFebMarAprMayJunJulAugSepOctNovDec63.7°AVG °F

Avg Annual Temp

63.7°F

Annual Precip

16.1"

Annual Snowfall

0.1"

Extreme Heat Days

50.66923076923076

days >= 90°F/yr

Monthly Temperature

54.4°F avgJFMAMJJASOND

Precipitation Calendar

Dry
Wet= snowfall
3.7"
4.2"
2.5"
0.8"
0.4"
0.1"
0.1"
0.0"
0.1"
0.7"
0.9"
2.5"
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Seasonal Overview

Comfort ZoneSpring58°65°3.8"Summer70°76°0.2"Fall59°73°1.7"Winter53°55°10.4"20°40°60°80°100°

National Comparison

Warmer than 80% of US counties
Wetter than 9% of US counties
More seasonal variation than 1% of US counties

Climate Profile

About Los Angeles County Weather

A perennially warm coastal giant

Los Angeles County's annual average of 63.7°F is significantly warmer than the national median. This consistent warmth attracts millions, though it remains drier than many eastern coastal regions.

Leading the state in warmth

At 63.7°F, Los Angeles sits five degrees above the California state average of 58.7°F. It is one of the state's warmer counties, driven by its southern latitude and diverse topography.

Drier than the California average

The county receives just 16.1 inches of rain annually, nearly 10 inches less than the California average of 25.8 inches. This semi-arid climate is even more pronounced when compared to the wetter northern coast.

Fifty-one days of intense sun

Summer temperatures average 73.4°F, but residents face 51 days of extreme heat exceeding 90°F annually. Winters are exceptionally mild, with a January average of 54.3°F and virtually no snow at 0.1 inches.

Prioritize efficient cooling and water

With 51 extreme heat days, high-efficiency HVAC systems are a standard requirement for comfort. Low-water landscaping is also a smart move given the county's low 16.1-inch annual rainfall.

Frequently Asked Questions

What is the average temperature in Los Angeles County?
The average annual temperature in Los Angeles County, CA is 63.7°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Los Angeles County get?
Los Angeles County receives an average of 16.1 inches of precipitation per year, including both rain and meltwater from snow. This is based on NOAA 30-year climate normals.
Does it snow in Los Angeles County?
Yes, Los Angeles County receives an average of 0.1 inches of snowfall per year according to NOAA climate normals.
How hot does Los Angeles County get in summer?
The average summer temperature (June-August) in Los Angeles County is 73.4°F. The county experiences an average of 50.66923076923076 days per year above 90°F.
How cold are winters in Los Angeles County?
The average winter temperature (December-February) in Los Angeles County is 54.2°F. January, typically the coldest month, averages 54.3°F.

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Data source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020.

Climate normals are 30-year averages of weather variables computed from 1991 to 2020. Station data is aggregated to county level using spatial averaging. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.

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