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Average Number of Clear,
Partly Cloudy & Cloudy Days*
Monthly & Annual

Downtown Los Angeles, Los Angeles Airport & Long Beach

Clouds over Los Angeles International Airport

Clouds over Los Angeles International Airport. Los Angeles Almanac Photo.


Month Downtown Los Angeles1 Los Angeles Airport2 Long Beach3
Clear Partly Cloudy Cloudy Clear Partly Cloudy Cloudy Clear Partly Cloudy Cloudy
January 14 8 9 12 8 11 12 8 11
February 12 7 9 11 6 11 10 7 11
March 13 9 9 12 9 11 11 9 11
April 12 10 8 11 9 9 12 10 8
Month Downtown Los Angeles1 Los Angeles Airport2 Long Beach3
Clear Partly Cloudy Cloudy Clear Partly Cloudy Cloudy Clear Partly Cloudy Cloudy
May 11 12 8 10 11 10 10 13 8
June 14 10 6 10 11 9 12 12 6
July 21 9 1 13 13 5 18 11 2
August 22 7 1 14 12 5 19 10 2
Month Downtown Los Angeles1 Los Angeles Airport2 Long Beach3
Clear Partly Cloudy Cloudy Clear Partly Cloudy Cloudy Clear Partly Cloudy Cloudy
September 18 8 3 13 10 6 15 11 4
October 16 9 6 13 10 8 13 11 7
November 16 7 6 15 8 8 13 8 8
December 15 8 8 13 8 10 13 8 10
Annual 186 106 73 147 116 103 159 119 87

* Daylight hours only. Clear days denote zero to 3/10 average sky cover. Partly cloudy days denote 4/10 to 7/10 sky cover. Cloudy days denote 8/10 or more sky cover. Annual totals may differ from cumulative 12 month totals due to rounding.
Cloudiness is based on time-averaged ceilometer data for clouds at or below 12,000 feet and on satellite data for clouds abover 12,000 ft.

1) Years of data for Downtown Los Angeles used in this table: 34
2) Years of data for Los Angeles Airport used in this table: 60
3) Years of data for Long Beach used in this table: 38

Source: National Climatic Data Center (NOAA)