NHC HURDAT2 · SPC Tornado Database
Hurricanes and Tornadoes That Hit Green River, WY
Every tropical system within 75 miles since 1851 and every tornado within 25 miles since 1950.
Data: NOAA NHC HURDAT2 and NOAA SPC tornado and hail reports, through 2025 · Updated
No tropical storm or hurricane has passed within 75 miles of Green River, Wyoming since records began in 1851. Since 1950, 12 tornadoes have touched down within 25 miles, 0 of them rated EF3 or stronger.
- Hurricanes
- 0
- Tropical storms
- 0
- Tornadoes
- 12
- EF3 or stronger
- 0
within 75 mi, since 1851
below hurricane strength
within 25 mi, since 1950
no recorded deaths
What the records show for Green River
The highest rating among the 12 tornadoes within 25 miles is F1, reached 6 times; the most recent, on July 10, 2001, came within 22 miles. Of the 12, none had a path within 5 miles of the city centre, and 7 have come since 2000. June has had the most tornadoes, 4. The most recent tornado was on June 23, 2023. Green River has more tornadoes within 25 miles than 48% of the 35 Wyoming cities on this site.
Compare Green River's storm record with another city →
Tornadoes within 25 miles of Green River
By decade
- 2020s1
- 2010s3
- 2000s3
- 1990s1
- 1970s3
- 1960s1
| Date | Rating | Distance | Path | Killed / injured |
|---|---|---|---|---|
| Jul 10, 2001 | F1 | 22 mi | 5 mi | 0 / 0 |
| Apr 20, 2001 | F1 | 10 mi | 0.2 mi | 0 / 0 |
| Apr 14, 2000 | F1 | 10 mi | 0.5 mi | 0 / 0 |
| Jul 31, 1978 | F1 | 25 mi | 1 mi | 0 / 0 |
| Jun 27, 1974 | F1 | 12 mi | 0.1 mi | 0 / 0 |
| Sep 9, 1973 | F1 | 7 mi | 0.1 mi | 0 / 0 |
| May 28, 2018 | EF0 | 12 mi | 3.45 mi | 0 / 0 |
| May 7, 2014 | EF0 | 21 mi | 0.53 mi | 0 / 0 |
| Sep 15, 2013 | EF0 | 14 mi | 0.05 mi | 0 / 0 |
| Jun 10, 1997 | F0 | 24 mi | 0.1 mi | 0 / 0 |
| Jun 9, 1960 | F0 | 6 mi | 0.1 mi | 0 / 0 |
| Jun 23, 2023 | Unrated | 11 mi | 0.09 mi | 0 / 0 |
The strongest 12 of 12, by rating and then by deaths. Ratings before February 2007 are on the original Fujita scale.
Hail in Green River
The Storm Prediction Center has no hail reports within 10 miles of Green River since 1955.
Source: NOAA Storm Prediction Center severe weather reports, data through 2025.
Weather by month in Green River
The nearest NOAA station with 1991–2020 climate normals is Green Rvr, WY, 13 miles southeast of Green River at 6,160 feet. July is the warmest, with an average high of 87°F and low of 53°F; January is the coolest, at 31°F and 8°F. May is the wettest at 1.7 inches of precipitation on average and February and July the driest at 0.5 inches; the year adds up to 10.2 inches over 36 days with at least a tenth of an inch. Highs reach 90°F on about 30 days a year, almost all from June to September. Lows fall below freezing on about 200 nights a year. Snowfall averages 38.5 inches a year, most of it in February. That 10.2 inches is more than at 8 of the 32 Wyoming stations used on this site (25%). Rock Springs, 25 miles east, has its own station (Rock Springs Fire Dept, WY): 10.5 inches a year, 0.3 more than here, and a July average high of 86°F against 87°F.
| Month | High °F | Low °F | Precip. in | Days ≥ 0.1" | Snow in |
|---|---|---|---|---|---|
| Jan | 31 | 8 | 0.7 | 2 | 6.3 |
| Feb | 36 | 13 | 0.5 | 2 | 7.6 |
| Mar | 47 | 23 | 0.8 | 3 | 5.4 |
| Apr | 56 | 29 | 1.3 | 5 | 3.9 |
| May | 66 | 38 | 1.7 | 5 | 0.9 |
| Jun | 78 | 46 | 0.9 | 2 | 0.0 |
| Jul | 87 | 53 | 0.5 | 2 | 0.0 |
| Aug | 85 | 51 | 0.6 | 3 | 0.0 |
| Sep | 76 | 41 | 0.9 | 3 | 0.3 |
| Oct | 61 | 30 | 1.0 | 4 | 2.4 |
| Nov | 44 | 19 | 0.7 | 3 | 5.0 |
| Dec | 32 | 10 | 0.6 | 3 | 6.7 |
| Year | 58 | 30 | 10.2 | 36 | 38.5 |
Averages for 1991–2020 at Green Rvr, WY (6,160 ft), from NOAA NCEI U.S. Climate Normals. Normals describe the station; the farther a place is from it, and the bigger the difference in height, the more its weather can differ.
Flood insurance claims, disaster declarations and FEMA risk ratings
Sweetwater County, which includes Green River, has been named in 4 federal disaster or emergency declarations since 1977, 2 of them major disasters (by incident: 2 biological emergencies, 1 drought, 1 severe storm). The latest major disaster declaration was Covid-19 Pandemic, on April 11, 2020. FEMA's National Risk Index gives Sweetwater County a Very Low rating for natural hazard risk overall; by hazard: Relatively Low for inland flooding and lightning; Very Low for tornadoes, hail and strong wind. It models the county's expected loss from all 18 hazards it covers at $11.6 million a year, the 11th highest of 23 Wyoming counties; of the hazards above, the largest share, $8.2 million (71%), is from inland flooding.
Claims: FEMA, OpenFEMA Dataset FIMA NFIP Redacted Claims – v3, summed over ZIP codes; payments in the dollars of each year, not adjusted for inflation. Declarations: Disaster Declarations Summaries – v2, by county. Retrieved October 25, 2026. This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).
Risk ratings: FEMA, National Risk Index county table, December 2025 (v1.20), retrieved October 26, 2026; ratings compare counties nationwide, are meant for planning and are no substitute for a local risk assessment. This product uses the Federal Emergency Management Agency's National Risk Index dataset API or downloadable datasets but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).
What counts as a pass, the distances and the sources: how this storm history is built.
Cities near Green River
- Rock Springs, WY25 mi
- Lyman, WY42 mi
- Kemmerer, WY43 mi
- Big Piney, WY67 mi
- Evanston, WY71 mi
- Vernal, UT79 mi
- Pinedale, WY85 mi
- Lander, WY90 mi
- Roosevelt, UT94 mi
- Afton, WY96 mi
- Montpelier, ID98 mi
- Coalville, UT105 mi
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