Missouri ice storm risk
115 counties scored 9 rated Very High
Greene County has the highest ice storm risk in Missouri, scoring 99.5 out of 100 — rated "Very High" by FEMA's National Risk Index.
| # | County | NRI score | Rating |
|---|---|---|---|
| 1 | Greene County | 99.5 | Very High |
| 2 | St. Louis County | 98.8 | Very High |
| 3 | Dallas County | 97.5 | Very High |
| 4 | Taney County | 97.5 | Very High |
| 5 | Laclede County | 97.3 | Very High |
| 6 | Jasper County | 96.8 | Very High |
| 7 | Newton County | 96 | Very High |
| 8 | Pemiscot County | 95.8 | Very High |
| 9 | Camden County | 95.5 | Very High |
| 10 | Dunklin County | 95 | Relatively High |
| 11 | Cape Girardeau County | 94.3 | Relatively High |
| 12 | Stone County | 94 | Relatively High |
| 13 | Christian County | 93.8 | Relatively High |
| 14 | Howell County | 93.8 | Relatively High |
| 15 | Barry County | 93.2 | Relatively High |
| 16 | Morgan County | 92.8 | Relatively High |
| 17 | Scott County | 92.2 | Relatively High |
| 18 | Butler County | 91.5 | Relatively High |
| 19 | Cole County | 90.7 | Relatively High |
| 20 | Lawrence County | 90 | Relatively High |
| 21 | Wright County | 89.4 | Relatively High |
| 22 | Stoddard County | 88.7 | Relatively High |
| 23 | Webster County | 87.2 | Relatively High |
| 24 | Miller County | 87 | Relatively High |
| 25 | Boone County | 86.7 | Relatively High |
| 26 | Phelps County | 86.6 | Relatively High |
| 27 | Polk County | 86.6 | Relatively High |
| 28 | McDonald County | 86.3 | Relatively High |
| 29 | Texas County | 86 | Relatively High |
| 30 | Moniteau County | 85.2 | Relatively High |
| 31 | Platte County | 85 | Relatively High |
| 32 | Pulaski County | 84.9 | Relatively High |
| 33 | St. Louis | 83.7 | Relatively High |
| 34 | Hickory County | 83.5 | Relatively High |
| 35 | New Madrid County | 83.5 | Relatively High |
| 36 | Mississippi County | 83.2 | Relatively High |
| 37 | Barton County | 82.6 | Relatively High |
| 38 | Jackson County | 82.3 | Relatively High |
| 39 | Ozark County | 82.3 | Relatively High |
| 40 | Clay County | 81.8 | Relatively Moderate |
| 41 | Crawford County | 81.6 | Relatively Moderate |
| 42 | Douglas County | 80.9 | Relatively Moderate |
| 43 | Benton County | 79.9 | Relatively Moderate |
| 44 | Henry County | 79.6 | Relatively Moderate |
| 45 | Ripley County | 79.3 | Relatively Moderate |
| 46 | Franklin County | 78.9 | Relatively Moderate |
| 47 | Maries County | 77.8 | Relatively Moderate |
| 48 | Oregon County | 77.6 | Relatively Moderate |
| 49 | Dade County | 76.5 | Relatively Moderate |
| 50 | Johnson County | 76.3 | Relatively Moderate |
| 51 | Wayne County | 75.8 | Relatively Moderate |
| 52 | Cedar County | 75.7 | Relatively Moderate |
| 53 | Cass County | 74.3 | Relatively Moderate |
| 54 | Vernon County | 73.7 | Relatively Moderate |
| 55 | Buchanan County | 72.2 | Relatively Moderate |
| 56 | Carter County | 72.2 | Relatively Moderate |
| 57 | St. Charles County | 71.6 | Relatively Moderate |
| 58 | Callaway County | 71.3 | Relatively Moderate |
| 59 | Shannon County | 71.1 | Relatively Moderate |
| 60 | Dent County | 70.1 | Relatively Moderate |
| 61 | Lafayette County | 69.8 | Relatively Moderate |
| 62 | Osage County | 69.8 | Relatively Moderate |
| 63 | Jefferson County | 69.4 | Relatively Moderate |
| 64 | St. Clair County | 68.9 | Relatively Moderate |
| 65 | Perry County | 64.6 | Relatively Moderate |
| 66 | Pettis County | 64.3 | Relatively Moderate |
| 67 | Bollinger County | 62.5 | Relatively Moderate |
| 68 | Ray County | 62.1 | Relatively Moderate |
| 69 | Warren County | 61.7 | Relatively Moderate |
| 70 | Washington County | 58.5 | Relatively Low |
| 71 | St. Francois County | 57.4 | Relatively Low |
| 72 | Gasconade County | 57.3 | Relatively Low |
| 73 | Montgomery County | 57.1 | Relatively Low |
| 74 | Audrain County | 50.5 | Relatively Low |
| 75 | Clinton County | 49.4 | Relatively Low |
| 76 | Saline County | 44.6 | Relatively Low |
| 77 | Bates County | 41.6 | Relatively Low |
| 78 | Nodaway County | 41 | Relatively Low |
| 79 | Cooper County | 40.6 | Relatively Low |
| 80 | Marion County | 38 | Relatively Low |
| 81 | Randolph County | 37.9 | Relatively Low |
| 82 | Caldwell County | 37.2 | Relatively Low |
| 83 | Iron County | 36.4 | Relatively Low |
| 84 | Andrew County | 36.1 | Relatively Low |
| 85 | Madison County | 35.4 | Relatively Low |
| 86 | Holt County | 35 | Relatively Low |
| 87 | Ste. Genevieve County | 34.9 | Relatively Low |
| 88 | Howard County | 34.3 | Relatively Low |
| 89 | Reynolds County | 32.2 | Relatively Low |
| 90 | Lincoln County | 30.5 | Relatively Low |
| 91 | Chariton County | 29.5 | Relatively Low |
| 92 | DeKalb County | 29 | Relatively Low |
| 93 | Carroll County | 28.8 | Relatively Low |
| 94 | Atchison County | 27.4 | Relatively Low |
| 95 | Pike County | 26.7 | Very Low |
| 96 | Monroe County | 26.1 | Very Low |
| 97 | Macon County | 24.7 | Very Low |
| 98 | Gentry County | 24.4 | Very Low |
| 99 | Ralls County | 23.4 | Very Low |
| 100 | Daviess County | 22.4 | Very Low |
| 101 | Linn County | 20.8 | Very Low |
| 102 | Lewis County | 20.1 | Very Low |
| 103 | Livingston County | 19.3 | Very Low |
| 104 | Harrison County | 18.9 | Very Low |
| 105 | Adair County | 18.5 | Very Low |
| 106 | Grundy County | 18 | Very Low |
| 107 | Clark County | 17.8 | Very Low |
| 108 | Shelby County | 14 | Very Low |
| 109 | Sullivan County | 10.3 | Very Low |
| 110 | Putnam County | 10.1 | Very Low |
| 111 | Schuyler County | 9.8 | Very Low |
| 112 | Worth County | 9.5 | Very Low |
| 113 | Mercer County | 9.1 | Very Low |
| 114 | Scotland County | 8.3 | Very Low |
| 115 | Knox County | 6.7 | 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 Missouri:
Frequently asked questions
What is the highest ice storm risk county in Missouri?
Greene County, MO has the highest ice storm risk in Missouri, with a FEMA National Risk Index score of 99.5 out of 100 (rated "Very High").
How many counties in Missouri are rated Very High for ice storm risk?
9 of 115 scored Missouri counties are rated "Very High" for ice storm risk by FEMA's National Risk Index.
What causes ice storm risk in Missouri?
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.