9
Extreme
Extreme Heat Risk in Tucson, AZ
Risk Level: Extreme — Score 9/10
FEMA: 9Historical: 10
Key Risk Factors
- FEMA rates Tucson's county as Very High risk for this hazard
- Estimated annual loss of $133M from this hazard type
- 48 events recorded in proximity in recent decades
- Active in the last 12 months (12 events)
- Average annual frequency: 8.1 events per year
Peak season: June-September
Last significant event: Excessive Heat - Southwest Arizona and Southeast California, United States (2025-08-20) — 5,720,016 people exposed
Highest Risk Cities for Extreme Heats
7
Tucson, AZ
FEMA: 9Historical: 10
How Tucson Compares
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Notable Extreme Heat Events Near Tucson
Excessive Heat - Southwest Arizona and Southeast California, United States
August 19, 2025 — WARNING
5,720,016 people exposed; $642,708M capital exposed
Excessive Heat - Northwest Arizona, Southeast California, and Southern Nevada, United States
August 19, 2025 — WARNING
3,090,000 people exposed; $372,153M capital exposed
Excessive Heat - Sonoran Desert Region, Arizona, United States
August 19, 2025 — WARNING
1,030,000 people exposed; $70,479M capital exposed
Extreme Heat - Arizona Desert, United States
June 14, 2022 — WARNING
Impact data not available
Extreme Heat - California/Arizona/Nevada, United States
June 11, 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
Earthquake Risk in Tucson
Score: 5/10
Wildfire Risk in Tucson
Score: 7/10
Hurricane Risk in Tucson
Score: 1/10
Flood Risk in Tucson
Score: 9/10
Tornado Risk in Tucson
Score: 3/10
Winter Storm Risk in Tucson
Score: 5/10
Landslide Risk in Tucson
Score: 1/10
Drought Risk in Tucson
Score: 5/10
High Wind Risk in Tucson
Score: 5/10
Tsunami Risk in Tucson
Score: 0/10
Extreme Heat Risk in Mesa, AZ
Score: 9/10
Extreme Heat Risk in Phoenix, AZ
Score: 9/10
Extreme Heat Risk in El Paso, TX
Score: 7/10
Monitor Extreme Heat Risk in Real Time
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