FEMA relative scores

Heat Wave Risk Rankings

The highest relative heat wave scores among FEMA county-equivalent areas represented in the city directory.

One FEMA area can contain several covered cities. Each area appears once below, with links to its city pages. The score is a relative comparison measure, not the annual chance of a heat wave.

  1. #1

    Cook County, IL

    ChicagoCicero
    Very High

    100.0

    relative score

  2. #2
    Very High

    100.0

    relative score

  3. #3

    Philadelphia County, PA

    Philadelphia
    Very High

    99.9

    relative score

  4. #4
    Very High

    99.9

    relative score

  5. #5

    Tulsa County, OK

    Broken ArrowTulsa
    Very High

    99.8

    relative score

  6. #6

    Maricopa County, AZ

    AvondaleBuckeyeChandlerGilbertGlendale+7 more
    Very High

    99.8

    relative score

  7. #7

    Queens County, NY

    New YorkQueens
    Very High

    99.8

    relative score

  8. #8

    Tarrant County, TX

    ArlingtonFort Worth
    Very High

    99.7

    relative score

  9. #9

    Kings County, NY

    Brooklyn
    Very High

    99.7

    relative score

  10. #10

    Oklahoma County, OK

    EdmondOklahoma City
    Very High

    99.7

    relative score

  11. #11

    Tulare County, CA

    Visalia
    Very High

    99.7

    relative score

  12. #12
    Very High

    99.6

    relative score

  13. #13

    Shelby County, TN

    Memphis
    Very High

    99.6

    relative score

  14. #14

    City of St. Louis, MO

    St. Louis
    Very High

    99.5

    relative score

  15. #15

    Hidalgo County, TX

    EdinburgMcAllenMission
    Relatively High

    99.5

    relative score

  16. #16

    Fresno County, CA

    ClovisFresno
    Relatively High

    99.5

    relative score

  17. #17

    Caddo Parish, LA

    Shreveport
    Relatively High

    99.4

    relative score

  18. #18
    Relatively High

    99.4

    relative score

  19. #19
    Relatively High

    99.4

    relative score

  20. #20

    Milwaukee County, WI

    Milwaukee
    Relatively High

    99.3

    relative score

  21. #21

    Bronx County, NY

    Bronx
    Relatively High

    99.3

    relative score

  22. #22
    Relatively High

    99.2

    relative score

  23. #23

    Nueces County, TX

    Corpus Christi
    Relatively High

    99.2

    relative score

  24. #24

    Cameron County, TX

    BrownsvilleHarlingen
    Relatively High

    99.2

    relative score

  25. #25

    New York County, NY

    Manhattan
    Relatively High

    99.1

    relative score

Other hazard rankings

AvalancheCoastal FloodingCold WaveDroughtEarthquakeHailHurricaneIce StormLandslideLightningRiverine FloodingStrong WindTornadoTsunamiVolcanic ActivityWildfireWinter Weather

Source: FEMA National Risk Index v1.19.0, released March 2023. Hazard figures cover FEMA county-equivalent areas.

Read the methodology →