Extreme Heat Risk in Houston, TX
Risk Level: Extreme — Score 9/10
Live Extreme Heat alert status near Houston
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Live extreme heat activity around Houston — refreshed throughout the day.
Open full-screen map →Key Risk Factors
- FEMA rates Houston's county as Very High risk for this hazard
- Estimated annual loss of $80M from this hazard type
- 29 events recorded in proximity in recent decades
- Active in the last 12 months (13 events)
- Average annual frequency: 14.9 events per year
Peak season: June-September
Last significant event: Heat - Harris County, Texas, United States (2026-07-04) — 4,720,000 people exposed
Highest Risk Cities for Extreme Heats
How Houston Compares
Notable Extreme Heat Events Near Houston
DisasterAWARE's historical archive records 5 notable extreme heat events near Houston, ranked below by impact. The most impactful: Heat - Harris County, Texas, United States (July 2026) — 4,720,000 people exposed; $605,350M capital exposed.
Heat - Harris County, Texas, United States
July 3, 2026 — ADVISORY
4,720,000 people exposed; $605,350M capital exposed
Excessive Heat - South Central Texas, United States
June 17, 2026 — WARNING
5,050,000 people exposed; $530,188M capital exposed
Extreme Heat - Southwestern and Texas United States
September 5, 2023 — WARNING
Impact data not available
Extreme Heat - Texas and Oklahoma, United States
August 25, 2019 — WARNING
Impact data not available
Extreme Heat - Texas and Oklahoma, United States
August 5, 2019 — WARNING
Impact data not available
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
How this data is built
Houston, TX extreme heat risk combines Historical Event Intelligence with authoritative hazard modeling from the Geospatial Intelligence Layers catalog. Live extreme heat monitoring is available through the Event Intelligence API and the DisasterAWARE Platform.
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