NHC HURDAT2 · SPC Tornado Database
Hurricanes and Tornadoes That Hit Sheridan, 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 Sheridan, Wyoming since records began in 1851. Since 1950, 11 tornadoes have touched down within 25 miles, 0 of them rated EF3 or stronger.
- Hurricanes
- 0
- Tropical storms
- 0
- Tornadoes
- 11
- 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 Sheridan
The highest rating among the 11 tornadoes within 25 miles is F1, reached 4 times; the most recent, on June 21, 1984, came within 16 miles. Of the 11, 4 had paths within 5 miles of the city centre, and one has come since 2000. June has had the most tornadoes, 9. The most recent tornado was on June 10, 2004. Of the 35 Wyoming cities on this site, 51% have more tornadoes within 25 miles than Sheridan. Hail has been reported within 10 miles 74 times since 1965, with stones up to 2.75 inches (baseball size). Sheridan has more hail reports within 10 miles than 82% of the 35 Wyoming cities.
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Tornadoes within 25 miles of Sheridan
By decade
- 2000s1
- 1990s4
- 1980s2
- 1970s2
- 1960s2
| Date | Rating | Distance | Path | Killed / injured |
|---|---|---|---|---|
| Jun 21, 1984 | F1 | 16 mi | 2 mi | 0 / 0 |
| Jun 15, 1984 | F1 | 21 mi | 1 mi | 0 / 0 |
| Jun 11, 1968 | F1 | 4 mi | 0.3 mi | 0 / 0 |
| Jun 7, 1968 | F1 | 11 mi | 0.3 mi | 0 / 0 |
| Jun 10, 2004 | F0 | 5 mi | 3.6 mi | 0 / 0 |
| Jun 28, 1995 | F0 | 4 mi | 0.1 mi | 0 / 0 |
| Jun 28, 1995 | F0 | 4 mi | 0.1 mi | 0 / 0 |
| May 11, 1995 | F0 | 17 mi | 0.1 mi | 0 / 0 |
| May 11, 1995 | F0 | 24 mi | 0.1 mi | 0 / 0 |
| Jun 4, 1976 | F0 | 15 mi | 0.1 mi | 0 / 0 |
| Jun 4, 1976 | F0 | 15 mi | 0.1 mi | 0 / 0 |
The strongest 11 of 11, by rating and then by deaths. Ratings before February 2007 are on the original Fujita scale.
Hail in Sheridan
The Storm Prediction Center has 74 hail reports within 10 miles of Sheridan since 1965, made on 54 separate days. Of these, 51 were 1 inch across or larger, and 3 reached 2 inches. The largest size, 2.75 inches (baseball size), was reported on 2 days, most recently June 20, 2010. The most recent report is from June 13, 2025. June has the most reports, 24.
Source: NOAA Storm Prediction Center severe weather reports, data through 2025.
Weather by month in Sheridan
The nearest NOAA station with 1991–2020 climate normals is Sheridan Co Airport, WY, 2 miles south of Sheridan at 3,945 feet. July is the warmest, with an average high of 88°F and low of 54°F; January is the coolest, at 36°F and 12°F. May is the wettest at 2.7 inches of precipitation on average and December the driest at 0.5 inches; the year adds up to 15.1 inches over 40 days with at least a tenth of an inch. Highs reach 90°F on about 35 days a year, almost all from June to September. Lows fall below freezing on about 185 nights a year. That 15.1 inches is more than at 22 of the 32 Wyoming stations used on this site (69%). Buffalo, 37 miles southeast, has its own station (Buffalo, WY): 13.8 inches a year, 1.3 less than here, and a July average high of 83°F against 88°F.
| Month | High °F | Low °F | Precip. in | Days ≥ 0.1" |
|---|---|---|---|---|
| Jan | 36 | 12 | 0.6 | 2 |
| Feb | 38 | 14 | 0.7 | 2 |
| Mar | 49 | 22 | 1.0 | 4 |
| Apr | 57 | 30 | 1.9 | 5 |
| May | 66 | 39 | 2.7 | 6 |
| Jun | 77 | 47 | 2.0 | 5 |
| Jul | 88 | 54 | 1.1 | 3 |
| Aug | 87 | 52 | 0.7 | 2 |
| Sep | 76 | 43 | 1.5 | 4 |
| Oct | 60 | 31 | 1.6 | 4 |
| Nov | 47 | 20 | 0.8 | 2 |
| Dec | 37 | 12 | 0.5 | 2 |
| Year | 60 | 31 | 15.1 | 40 |
Averages for 1991–2020 at Sheridan Co Airport, WY (3,945 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.
Floods, thunderstorm wind and lightning near Sheridan
Since 1996, the National Weather Service has logged 67 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Sheridan: 54 thunderstorm wind reports, 8 flash floods, 4 floods and 1 heavy rain event. None is recorded as killing or injuring anyone; the NWS estimated $10,000 in property and crop damage. The strongest thunderstorm gust on record here was 87 mph, on May 1, 2001. June has had the most flash floods, 5 of 8. Of the 24 Wyoming cities on this site with a flash flood on record, 20 have had fewer than Sheridan.
Source: NOAA NCEI Storm Events Database, events whose starting point is on record, 1996 to June 30, 2026. Damage is the NWS estimate in the dollars of the year, not insured losses, and NWS notes that some reports are unverified.
Flood insurance claims, disaster declarations and FEMA risk ratings
Flood insurance policyholders in Sheridan's ZIP code 82801 have filed 58 claims with the National Flood Insurance Program since 1978, and were paid $203,000 for buildings and contents, in the dollars of each year. The year with the most claims was 1995, with 12. Of the 9 Wyoming cities on this site with 10 or more claims, 7 have fewer than Sheridan.
Sheridan County, which includes Sheridan, has been named in 7 federal disaster or emergency declarations since 1978, 3 of them major disasters (by incident: 3 fires, 2 biological emergencies, 1 flood, 1 severe storm). The latest major disaster declaration was Covid-19 Pandemic, on April 11, 2020. FEMA's National Risk Index gives Sheridan County a Relatively Low rating for natural hazard risk overall; by hazard: Relatively Moderate for inland flooding and lightning; Relatively Low for hail; Very Low for tornadoes, strong wind and heat waves. It models the county's expected loss from all 18 hazards it covers at $25.8 million a year, the 4th highest of 23 Wyoming counties; of the hazards above, the largest share, $16.5 million (64%), 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 Sheridan
- Buffalo, WY37 mi
- Greybull, WY56 mi
- Lame Deer, MT57 mi
- Crow Agency, MT60 mi
- Lovell, WY67 mi
- Worland, WY75 mi
- Hardin, MT75 mi
- Colstrip, MT79 mi
- Gillette, WY86 mi
- Forsyth, MT89 mi
- Powell, WY93 mi
- Huntley, MT98 mi
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