7
Very High
Extreme Heat Risk in Seattle, WA
Risk Level: Very High — Score 7/10
FEMA: 7Historical: 10
Key Risk Factors
- FEMA rates Seattle's county as Relatively High risk
- Estimated annual loss of $19M from this hazard type
- 5 events on record in proximity
- 5 event(s) in the last 12 months
- Average annual frequency: 3.8 events per year
Peak season: June-September
Last significant event: Cold Weather - Puget Sound lowlands, Washington, United States (2026-01-25) — 3,510,000 people exposed
Highest Risk Cities for Extreme Heats
Seattle is not in the top 10 for extreme heat risk among tracked cities.
How Seattle Compares
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Notable Extreme Heat Events Near Seattle
Cold Weather - Puget Sound / Seattle area, Washington, United States
January 23, 2026 — ADVISORY
3,120,000 people exposed; $651,192M capital exposed
Heat - Foothills and Valleys of Western Washington, United States
September 1, 2025 — ADVISORY
837,004 people exposed; $95,103M capital exposed
Excessive Heat - Puget Sound Foothills and Valleys, Washington, United States
August 21, 2025 — WARNING
837,004 people exposed; $95,103M capital exposed
Cold Weather - Puget Sound lowlands, Washington, United States
January 24, 2026 — ADVISORY
3,510,000 people exposed; $710,011M capital exposed
Heat - Lake Crescent Area, United States
August 21, 2025 — ADVISORY
183,000 people exposed; $24,384M 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
Earthquake Risk in Seattle
Score: 9/10
Wildfire Risk in Seattle
Score: 3/10
Hurricane Risk in Seattle
Score: 0/10
Flood Risk in Seattle
Score: 9/10
Tornado Risk in Seattle
Score: 5/10
Winter Storm Risk in Seattle
Score: 7/10
Landslide Risk in Seattle
Score: 7/10
Drought Risk in Seattle
Score: 1/10
High Wind Risk in Seattle
Score: 1/10
Tsunami Risk in Seattle
Score: 3/10
Extreme Heat Risk in Portland, OR
Score: 7/10
Extreme Heat Risk in Sacramento, CA
Score: 5/10
Extreme Heat Risk in Oakland, CA
Score: 7/10
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