Los Angeles - Hottest Decades





Ranked here are the hottest decades on record for Los Angeles, California. The lists include decades when Los Angeles had the highest average temperatures and the most hot days. These extremes are for temperatures observed in downtown Los Angeles and cover ten decades, from the 1920s to the 2010s.

That is when Los Angeles had weather measurements that are consistent and complete enough to compare decades. Each decade comprises a standard 10-year range. For instance, the 1990s includes measurements from Jan 1, 1990 to Dec 31, 1999. An exception is the 2010s which so far includes data to the end of 2018. Links to the data behind these lists are in the References section on this page.

Hottest High Temperatures

Average daily maximum temperature at Los Angeles
High °F Decade High °C
Highest 76.3 1980s 24.6
Runner-up 76.1 1990s 24.5

Warmest Low Temperatures

Average daily minimum temperature at Los Angeles
Low °F Decade Low °C
Highest 58.3 1980s 14.6
Runner-up 58.0 1990s 14.4

Most Warm Days

Total days per year on average when Los Angeles had temperatures of at least 70 °F (21 °C)
Days Decade
Highest 274 2010s
Runner-up 273 1980s

Most Hot Days

Total days per year on average when Los Angeles had temperatures of at least 90 °F (32 °C)
Days Decade
Highest 30 1990s
Runner-up 28 1980s
References

Current Results. 2019. Los Angeles CA Temperature Averages by Decade

Jay Lawrimore, Ron Ray, Scott Applequist, Bryant Korzeniewski, Matthew Menne. 2016. Global Summary of the Year, Version 1.0. NOAA National Centers for Environmental Information.

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