Winter Weather Risk in Montana
All Montana counties ranked by FEMA National Risk Index winter weather score
Winter Weather risk — heavy snow, blizzards, and hazardous winter conditions — is rated for 56 of 56 Montana counties in FEMA's National Risk Index. Gallatin County carries the state's highest winter weather score at 99.6, with $4M in expected annual winter weather losses.
17 Montana counties are rated High or Very High for winter weather, and expected annual losses from winter weather total roughly $18M statewide. The full ranking below links to each county's complete 18-hazard risk profile.
County Rankings — Winter Weather
| # | County | Winter Weather Score | Rating | Ann. Freq. | Ann. Loss |
|---|---|---|---|---|---|
| 1 | Gallatin County | Very High | 49.27 / yr | $4M | |
| 2 | Cascade County | Very High | 45.67 / yr | $2M | |
| 3 | Yellowstone County | Very High | 18.28 / yr | $2M | |
| 4 | Lewis and Clark County | Very High | 43.82 / yr | $2M | |
| 5 | Lake County | High | 43.84 / yr | $532K | |
| 6 | Flathead County | High | 50.08 / yr | $725K | |
| 7 | Silver Bow County | High | 44.96 / yr | $599K | |
| 8 | Fergus County | High | 36.99 / yr | $442K | |
| 9 | Roosevelt County | High | 18.65 / yr | $238K | |
| 10 | Glacier County | High | 42.67 / yr | $249K | |
| 11 | Hill County | High | 21.89 / yr | $309K | |
| 12 | Big Horn County | High | 24.45 / yr | $212K | |
| 13 | Sanders County | High | 43.61 / yr | $212K | |
| 14 | Ravalli County | High | 53.01 / yr | $317K | |
| 15 | Lincoln County | High | 36.31 / yr | $211K | |
| 16 | Beaverhead County | High | 36.80 / yr | $220K | |
| 17 | Custer County | High | 15.79 / yr | $230K | |
| 18 | Dawson County | Medium | 18.84 / yr | $249K | |
| 19 | Rosebud County | Medium | 17.33 / yr | $147K | |
| 20 | Richland County | Medium | 18.95 / yr | $324K | |
| 21 | Park County | Medium | 22.04 / yr | $256K | |
| 22 | Blaine County | Medium | 22.21 / yr | $133K | |
| 23 | Missoula County | Medium | 50.85 / yr | $331K | |
| 24 | Jefferson County | Medium | 33.89 / yr | $213K | |
| 25 | Deer Lodge County | Medium | 44.99 / yr | $162K | |
| 26 | Sheridan County | Medium | 18.21 / yr | $151K | |
| 27 | Powell County | Medium | 46.41 / yr | $140K | |
| 28 | Chouteau County | Medium | 28.71 / yr | $106K | |
| 29 | Teton County | Medium | 41.46 / yr | $142K | |
| 30 | Phillips County | Medium | 17.79 / yr | $86K | |
| 31 | Carbon County | Medium | 21.02 / yr | $93K | |
| 32 | Broadwater County | Medium | 30.71 / yr | $106K | |
| 33 | Pondera County | Medium | 33.74 / yr | $70K | |
| 34 | Musselshell County | Medium | 17.23 / yr | $77K | |
| 35 | Valley County | Medium | 18.58 / yr | $94K | |
| 36 | Fallon County | Low | 16.32 / yr | $116K | |
| 37 | Madison County | Low | 42.13 / yr | $99K | |
| 38 | Mineral County | Low | 56.51 / yr | $60K | |
| 39 | Stillwater County | Low | 21.59 / yr | $96K | |
| 40 | Granite County | Low | 52.58 / yr | $56K | |
| 41 | Liberty County | Low | 20.68 / yr | $47K | |
| 42 | Meagher County | Low | 42.24 / yr | $50K | |
| 43 | Carter County | Low | 19.63 / yr | $71K | |
| 44 | Judith Basin County | Low | 46.02 / yr | $55K | |
| 45 | Powder River County | Low | 19.62 / yr | $60K | |
| 46 | Toole County | Low | 22.34 / yr | $39K | |
| 47 | Wibaux County | Low | 18.42 / yr | $52K | |
| 48 | Daniels County | Low | 18.48 / yr | $50K | |
| 49 | Sweet Grass County | Low | 22.68 / yr | $46K | |
| 50 | Wheatland County | Low | 20.08 / yr | $23K | |
| 51 | McCone County | Low | 19.26 / yr | $27K | |
| 52 | Prairie County | Low | 17.68 / yr | $17K | |
| 53 | Golden Valley County | Very Low | 17.93 / yr | $18K | |
| 54 | Garfield County | Very Low | 18.16 / yr | $20K | |
| 55 | Petroleum County | Very Low | 16.79 / yr | $11K | |
| 56 | Treasure County | Very Low | 16.38 / yr | $13K |
56 Montana counties with measurable winter weather risk. See the national winter weather ranking or all Montana counties by overall risk.
Frequently Asked Questions
Which Montana county has the highest winter weather risk?
Gallatin County has the highest FEMA winter weather risk score in Montana at 99.6 (Very High), with $4M in expected annual losses and about 49.27 events per year.
How many Montana counties face significant winter weather risk?
56 Montana counties record measurable winter weather risk in FEMA's National Risk Index; 17 of them are rated High or Very High.