Oklahoma ice storm risk
Oklahoma County has the highest ice storm risk in Oklahoma, scoring 99.8 out of 100 — rated "Very High" by FEMA's National Risk Index.
| # | County | NRI score | Rating |
|---|---|---|---|
| 1 | Oklahoma County | 99.8 | Very High |
| 2 | Tulsa County | 99.7 | Very High |
| 3 | Cleveland County | 99.6 | Very High |
| 4 | Creek County | 98.9 | Very High |
| 5 | Mayes County | 98.9 | Very High |
| 6 | Ottawa County | 98.7 | Very High |
| 7 | Craig County | 98.6 | Very High |
| 8 | Canadian County | 98.5 | Very High |
| 9 | Okmulgee County | 98.4 | Very High |
| 10 | Muskogee County | 98.3 | Very High |
| 11 | Rogers County | 98.3 | Very High |
| 12 | Delaware County | 98.1 | Very High |
| 13 | Wagoner County | 98 | Very High |
| 14 | Payne County | 97.3 | Very High |
| 15 | Harper County | 97.2 | Very High |
| 16 | Le Flore County | 96.9 | Very High |
| 17 | Custer County | 96.7 | Very High |
| 18 | Garfield County | 96.5 | Very High |
| 19 | Osage County | 96.4 | Very High |
| 20 | Comanche County | 96.2 | Very High |
| 21 | Cherokee County | 96.1 | Very High |
| 22 | Beckham County | 96 | Very High |
| 23 | Sequoyah County | 95.9 | Very High |
| 24 | Pittsburg County | 95.7 | Very High |
| 25 | Pottawatomie County | 95.7 | Very High |
| 26 | Bryan County | 95.3 | Very High |
| 27 | Washington County | 95.1 | Very High |
| 28 | Ellis County | 94.7 | Relatively High |
| 29 | Dewey County | 94.6 | Relatively High |
| 30 | Alfalfa County | 94.1 | Relatively High |
| 31 | Logan County | 94.1 | Relatively High |
| 32 | McCurtain County | 94 | Relatively High |
| 33 | Grady County | 93.9 | Relatively High |
| 34 | Kay County | 93.9 | Relatively High |
| 35 | Blaine County | 93.8 | Relatively High |
| 36 | Grant County | 93.7 | Relatively High |
| 37 | Nowata County | 93.7 | Relatively High |
| 38 | Kingfisher County | 93.5 | Relatively High |
| 39 | McIntosh County | 93 | Relatively High |
| 40 | Lincoln County | 92.9 | Relatively High |
| 41 | Pawnee County | 92.8 | Relatively High |
| 42 | Pontotoc County | 92.7 | Relatively High |
| 43 | Major County | 92.6 | Relatively High |
| 44 | Beaver County | 92.4 | Relatively High |
| 45 | Caddo County | 92 | Relatively High |
| 46 | Carter County | 91.9 | Relatively High |
| 47 | Adair County | 91.2 | Relatively High |
| 48 | Choctaw County | 89.8 | Relatively High |
| 49 | Woodward County | 89.6 | Relatively High |
| 50 | McClain County | 89.5 | Relatively High |
| 51 | Garvin County | 89.1 | Relatively High |
| 52 | Washita County | 88.9 | Relatively High |
| 53 | Okfuskee County | 88.8 | Relatively High |
| 54 | Marshall County | 88.6 | Relatively High |
| 55 | Stephens County | 88.1 | Relatively High |
| 56 | Pushmataha County | 87.9 | Relatively High |
| 57 | Seminole County | 87.8 | Relatively High |
| 58 | Atoka County | 87.3 | Relatively High |
| 59 | Latimer County | 87.1 | Relatively High |
| 60 | Hughes County | 85.8 | Relatively High |
| 61 | Noble County | 85.1 | Relatively High |
| 62 | Johnston County | 84.4 | Relatively High |
| 63 | Jackson County | 84 | Relatively High |
| 64 | Kiowa County | 81.3 | Relatively Moderate |
| 65 | Murray County | 80.7 | Relatively Moderate |
| 66 | Coal County | 79.3 | Relatively Moderate |
| 67 | Haskell County | 77.6 | Relatively Moderate |
| 68 | Roger Mills County | 73.4 | Relatively Moderate |
| 69 | Woods County | 73.3 | Relatively Moderate |
| 70 | Greer County | 73.1 | Relatively Moderate |
| 71 | Tillman County | 69.9 | Relatively Moderate |
| 72 | Texas County | 67.9 | Relatively Moderate |
| 73 | Jefferson County | 62 | Relatively Moderate |
| 74 | Love County | 61.8 | Relatively Moderate |
| 75 | Harmon County | 57.3 | Relatively Low |
| 76 | Cotton County | 45.9 | Relatively Low |
| 77 | Cimarron County | 18.9 | Very Low |
Source: FEMA National Risk Index v1.20.0, December 2025. Scores are 0–100 percentile rankings among all US counties. See the methodology page for definitions. Download the full CSV for all counties.
Ice Storm risk nationally:
Other hazard risks in Oklahoma:
Frequently asked questions
What is the highest ice storm risk county in Oklahoma?
Oklahoma County, OK has the highest ice storm risk in Oklahoma, with a FEMA National Risk Index score of 99.8 out of 100 (rated "Very High").
How many counties in Oklahoma are rated Very High for ice storm risk?
27 of 77 scored Oklahoma counties are rated "Very High" for ice storm risk by FEMA's National Risk Index.
What causes ice storm risk in Oklahoma?
Ice storm risk covers damaging freezing rain and sleet accumulation, which collapses power lines, trees, and structures. The highest-risk counties cluster in a band from eastern Texas and Arkansas through the Carolinas and New England, where warm Gulf moisture overruns cold arctic air most frequently. Ice storms cause catastrophic and long-lasting power outages. Ice storm and sleet events are reported at forecast-zone level in NOAA Storm Events and are not included in county-level counts.