Lightning Risk in Wyoming
All Wyoming counties ranked by FEMA National Risk Index lightning score
Lightning risk — electrical discharges from storms that ignite fires and cause casualties — is rated for 23 of 23 Wyoming counties in FEMA's National Risk Index. Teton County carries the state's highest lightning score at 97.2, with $4M in expected annual lightning losses.
6 Wyoming counties are rated High or Very High for lightning, and expected annual losses from lightning total roughly $13M statewide. The full ranking below links to each county's complete 18-hazard risk profile.
County Rankings — Lightning
| # | County | Lightning Score | Rating | Ann. Freq. | Ann. Loss |
|---|---|---|---|---|---|
| 1 | Teton County | Very High | 38.45 / yr | $4M | |
| 2 | Carbon County | High | 44.16 / yr | $1M | |
| 3 | Laramie County | High | 52.38 / yr | $1M | |
| 4 | Park County | High | 38.07 / yr | $934K | |
| 5 | Fremont County | High | 35.14 / yr | $774K | |
| 6 | Albany County | High | 50.58 / yr | $979K | |
| 7 | Sublette County | Medium | 38.80 / yr | $738K | |
| 8 | Lincoln County | Medium | 36.93 / yr | $562K | |
| 9 | Sheridan County | Medium | 34.95 / yr | $498K | |
| 10 | Natrona County | Medium | 38.23 / yr | $524K | |
| 11 | Uinta County | Medium | 39.91 / yr | $547K | |
| 12 | Campbell County | Medium | 38.44 / yr | $487K | |
| 13 | Sweetwater County | Low | 38.54 / yr | $337K | |
| 14 | Platte County | Low | 47.19 / yr | $137K | |
| 15 | Goshen County | Low | 45.90 / yr | $166K | |
| 16 | Hot Springs County | Low | 34.47 / yr | $112K | |
| 17 | Converse County | Low | 42.25 / yr | $137K | |
| 18 | Big Horn County | Low | 33.67 / yr | $126K | |
| 19 | Crook County | Low | 39.54 / yr | $115K | |
| 20 | Johnson County | Low | 37.24 / yr | $85K | |
| 21 | Washakie County | Very Low | 33.80 / yr | $57K | |
| 22 | Weston County | Very Low | 43.72 / yr | $84K | |
| 23 | Niobrara County | Very Low | 43.39 / yr | $28K |
23 Wyoming counties with measurable lightning risk. See the national lightning ranking or all Wyoming counties by overall risk.
Frequently Asked Questions
Which Wyoming county has the highest lightning risk?
Teton County has the highest FEMA lightning risk score in Wyoming at 97.2 (Very High), with $4M in expected annual losses and about 38.45 events per year.
How many Wyoming counties face significant lightning risk?
23 Wyoming counties record measurable lightning risk in FEMA's National Risk Index; 6 of them are rated High or Very High.