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7
Very High

extreme-heat Extreme Heat Risk in Los Angeles, CA

Risk Level: Very High — Score 7/10

FEMA: 7Historical: 10

Key Risk Factors

  • FEMA rates Los Angeles's county as Relatively High risk
  • Estimated annual loss of $37M from this hazard type
  • 7 events on record in proximity
  • 5 event(s) in the last 12 months
  • Average annual frequency: 9.5 events per year

Peak season: June-September

Last significant event: Heat - Ojai Valley area, California, United States (2025-10-28) — 9,940,000 people exposed

Highest Risk Cities for Extreme Heats

1
FEMA: 9Historical: 8
2
FEMA: 9Historical: 0
3
FEMA: 9Historical: 10
4
FEMA: 9Historical: 10
5
FEMA: 9Historical: 10
6
FEMA: 9Historical: 10
7
FEMA: 9Historical: 0
8
FEMA: 9Historical: 10
9
FEMA: 7Historical: 10
10
Los Angeles, CA
FEMA: 7Historical: 10

How Los Angeles Compares

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Notable Extreme Heat Events Near Los Angeles

Extreme Heat - Southwestern California, United States

September 30, 2020 WARNING

Impact data not available

Heat - Ojai Valley area, California, United States

October 27, 2025 ADVISORY

9,940,000 people exposed; $2,958,558M capital exposed

Excessive Heat - Southern California, United States

August 20, 2025 WARNING

3,720,000 people exposed; $1,183,595M capital exposed

Extreme Heat - Southern California

August 8, 2024 WARNING

348,000 people exposed; $86,687M capital exposed

Heat - Central Ventura County, California, United States

August 21, 2025 ADVISORY

84,900 people exposed; $12,688M capital exposed

Extreme Heat Preparedness Tips

  • 1.Stay hydrated — drink water regularly even if you don’t feel thirsty
  • 2.Avoid outdoor activities during peak heat hours (10 AM – 4 PM)
  • 3.Know the signs of heat exhaustion and heat stroke
  • 4.Check on elderly neighbors and those without air conditioning
  • 5.Never leave children or pets in a parked vehicle

Related Pages

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