7
Very High
Extreme Heat Risk in Boston, MA
Risk Level: Very High — Score 7/10
FEMA: 7Historical: 10
Key Risk Factors
- FEMA rates Boston's county as Relatively High risk
- Estimated annual loss of $9M from this hazard type
- 14 events recorded in proximity in recent decades
- 3 event(s) in the last 12 months
- Average annual frequency: 5.3 events per year
Peak season: June-September
Last significant event: Cold Weather - Middlesex County, Massachusetts, United States (2026-02-07) — 48,000 people exposed
Highest Risk Cities for Extreme Heats
Boston is not in the top 10 for extreme heat risk among tracked cities.
How Boston Compares
Loading chart...
Notable Extreme Heat Events Near Boston
Cold Weather - Middlesex County, Massachusetts, United States
February 6, 2026 — ADVISORY
48,000 people exposed; $8,043M capital exposed
Extreme Heat - Southern and Eastern United States
June 30, 2024 — WARNING
114,000,000 people exposed; $23,632,231M capital exposed
Extreme Heat - Eastern United States
June 22, 2025 — WARNING
91,006,790 people exposed; $21,897,084M capital exposed
Extreme Heat - Northeastern United States
July 24, 2025 — WARNING
54,500,000 people exposed; $15,778,747M capital exposed
Extreme Heat - Northeastern United States
July 28, 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 Boston
Score: 5/10
Wildfire Risk in Boston
Score: 1/10
Hurricane Risk in Boston
Score: 7/10
Flood Risk in Boston
Score: 7/10
Tornado Risk in Boston
Score: 5/10
Winter Storm Risk in Boston
Score: 7/10
Landslide Risk in Boston
Score: 1/10
Drought Risk in Boston
Score: 0/10
High Wind Risk in Boston
Score: 5/10
Tsunami Risk in Boston
Score: 0/10
Extreme Heat Risk in New York, NY
Score: 7/10
Extreme Heat Risk in Philadelphia, PA
Score: 9/10
Extreme Heat Risk in Baltimore, MD
Score: 7/10
Monitor Extreme Heat Risk in Real Time
Get real-time extreme heat alerts for Boston, MA and hundreds of other locations with DisasterAWARE's enterprise platform.