🌡️ Hazard category
Extreme Heat risk by state
Extreme heat is the deadliest weather hazard in the US, and heat waves are growing longer and hotter.
Extreme heat is the deadliest weather hazard in the US, and heat waves are growing longer and hotter.
How to prepare your home
- Never leave people or pets in parked vehicles.
- Use air conditioning or locate your nearest public cooling center.
- Add attic insulation, reflective roofing or shade trees to keep your home cooler.
- Check on elderly neighbors and family during heat waves.
- Stay hydrated and avoid strenuous outdoor activity during peak heat.
Official sources
All states ranked by extreme heat risk
Arizona
Arizona is rated level 5 of 5 for extreme heat, meaning the state faces very high risk from prolonged periods…
Florida
Extreme heat is a top-level threat in Florida, where high summer temperatures combine with intense humidity…
Louisiana
Louisiana faces the highest level of extreme heat risk in the U.S., with long, humid summers and frequent…
Nevada
Extreme heat is the most severe natural hazard risk in Nevada, rated Level 5 of 5. With a desert climate, the…
Texas
Extreme heat is a major hazard for Texas homes, with the state rated at the highest risk level. This page…
Alabama
Alabama faces a high extreme heat risk (level 4 of 5), with hot, humid summers and heat index values…
Arkansas
Arkansas experiences extreme heat and humidity each summer, with heat indexes frequently exceeding 100°F and…
California
California faces a high (level 4 of 5) risk from extreme heat, a hazard that is becoming more frequent and…
Georgia
Georgia faces a high risk of extreme heat, rated level 4 out of 5, with long, humid summers and heat waves…
Kansas
Extreme heat is a significant hazard in Kansas, with the state rated at level 4 of 5 for this risk. Summers…
Mississippi
Extreme heat is a serious hazard in Mississippi, rated level 4 of 5 on a national risk scale. The state's…
Missouri
Missouri faces a high level 4 risk of extreme heat, with hot, humid summers that can stress home cooling…
New Mexico
New Mexico faces a high risk of extreme heat, rated level 4 out of 5. Its high desert climate brings intense…
Oklahoma
Oklahoma faces a high risk of extreme heat due to its southern Plains location, with hot, humid summers and…
South Carolina
South Carolina experiences some of the hottest and most humid weather in the Southeast, with extreme heat…
Colorado
Colorado faces a moderate (level 3 of 5) extreme heat risk, with intense summer temperatures most pronounced…
Delaware
Delaware faces a moderate (Level 3 of 5) risk from extreme heat, with hot, humid summers that can stress…
District of Columbia
Extreme heat is a significant hazard in the District of Columbia, rated level 3 out of 5. The city's dense…
Idaho
Idaho has a moderate level 3 out of 5 risk for extreme heat, especially in its southern low-elevation…
Illinois
Extreme heat is a significant hazard in Illinois, rated level 3 of 5. Summers bring hot, humid conditions,…
Indiana
Extreme heat is a significant hazard in Indiana, particularly during the summer months when high temperatures…
Iowa
Extreme heat poses a significant risk in Iowa, rated level 3 of 5. Summers in the state often bring days of…
Kentucky
Kentucky is rated level 3 of 5 for extreme heat risk, with hot, humid summers that can bring dangerous heat…
Maryland
Maryland experiences hot, humid summers, with heat waves becoming more frequent and intense. The state is…
Nebraska
Nebraska faces a moderate (level 3 of 5) extreme heat risk, with hot summers and occasional heat waves that…
New Jersey
New Jersey faces a significant extreme heat risk, rated 3 out of 5. Hot, humid summers and the urban heat…
North Carolina
North Carolina faces a significant extreme heat risk, rated level 3 out of 5. Summer heat waves, combined…
South Dakota
South Dakota faces a moderate risk of extreme heat, with summer temperatures that can climb above 100°F and…
Tennessee
Extreme heat is a significant hazard in Tennessee, rated Level 3 out of 5 for risk. Hot, humid summers with…
Utah
Utah is rated level 3 of 5 for extreme heat. The state's dry high-desert summers bring dangerous heat,…
Virginia
Virginia experiences hot, humid summers with significant extreme heat risk, rated level 3 of 5 by FEMA. Urban…
Connecticut
Connecticut faces a moderate (Level 2 of 5) risk of extreme heat, with humid summer conditions and urban heat…
Hawaii
Hawaii is ranked Level 2 of 5 for extreme heat risk, meaning a moderate but lower-than-average threat. Heat…
Massachusetts
Massachusetts experiences occasional extreme heat events, especially in summer, with urban areas like Boston…
Michigan
Extreme heat is a moderate risk in Michigan, with summer heat waves bringing high temperatures and humidity,…
Minnesota
Minnesota experiences extreme heat events, typically in summer, with humidity making conditions more…
Montana
Montana faces a moderate-level risk of extreme heat, rated 2 out of 5. Although summers are generally mild,…
New York
Extreme heat in New York is most common during summer, with the highest risk in urban areas like New York…
North Dakota
North Dakota has a relatively low but real risk of extreme heat, rated Level 2 of 5 by FEMA. The state…
Ohio
Ohio experiences hot, humid summers with occasional extreme heat events. While the state is rated at level 2…
Oregon
Extreme heat in Oregon is a moderate hazard, rated level 2 out of 5. While Oregon's coastal and mountain…
Pennsylvania
Pennsylvania experiences hot, humid summers, with extreme heat events becoming more frequent. While the…
Rhode Island
Rhode Island has a relatively low but real risk of extreme heat, with summer heat waves and urban heat island…
Washington
Washington is rated Level 2 of 5 for extreme heat risk. While the state is known for mild weather, heat waves…
West Virginia
West Virginia experiences a moderate risk of extreme heat, especially during summer heat waves. While the…
Wisconsin
Extreme heat presents a moderate but growing risk to Wisconsin homes, particularly in urban areas like…
Wyoming
Wyoming experiences periodic extreme heat events, especially in lower-elevation areas during summer, despite…
Alaska
Extreme heat is a low-level hazard in Alaska, rated 1 out of 5, but interior regions like Fairbanks can still…
Maine
Maine has a relatively low risk of extreme heat compared to other states, but summer heat waves can still…
New Hampshire
New Hampshire has a very low risk of extreme heat, rated Level 1 on FEMA's National Risk Index. Still, summer…
Vermont
Vermont has a low relative risk of extreme heat compared to other US states, but heat waves can still occur,…
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