HailEvidence → hail history by county → Wyoming → Natrona County
Hail dates in Natrona County, Wyoming
The National Weather Service has recorded hail in Natrona County on 31 days since 2016 (44 separate reports, 33 of them quarter-size or larger). The largest stone on record was 2.50" (tennis ball) on June 23, 2023; the most recent hail was June 25, 2026. Every row below is an official NWS record. Check hail at your exact address, free →
Every hail day in Natrona County since 2016
One row per day the NWS logged hail somewhere in the county. The narrative names the town; the free check below narrows it to your address.
| Date | Largest hail | Reports | NWS narrative |
|---|---|---|---|
| 2026-06-25 | 1.00" (quarter) | 1 | The public reported quarter size hail to the south of Midwest. |
| 2025-07-29 | 0.88" (nickel) | 2 | A trained spotter reported nickel size hail to the west of Mills. |
| 2025-06-16 | 2.25" (hen egg) | 3 | The Natrona County Emergency Manager reported 2.25 inch hail to the northwest of Mills. |
| 2023-09-10 | 1.75" (golf ball) | 2 | There were numerous reports of quarter to golf ball size hail the south and southwest of Midwest from Interstate 25 to Wyoming Highway 259. The hail accumula… |
| 2023-07-06 | 1.75" (golf ball) | 3 | The public reported golf ball size hail in the southern end of the Bighorn Mountain Range. |
| 2023-06-29 | 1.00" (quarter) | 1 | Video was posted to Facebook by a spotter of several inches of hail up to quarter size covering Highway 259 to the south of Midwest. |
| 2023-06-23 | 2.50" (tennis ball) | 1 | A supercell thunderstorm moved across northern Natrona County and brought very large hail to the south of Midwest. Hail almost baseball size fell in a farm t… |
| 2023-06-20 | 1.75" (golf ball) | 1 | A trained spotter reported golf ball size hail to the west of Bar Nunn. |
| 2023-05-17 | 1.00" (quarter) | 2 | A trained spotter reported quarter size hail to the west of Casper. |
| 2022-06-03 | 1.00" (quarter) | 1 | A trained spotter reported quarter-sized hail in Midwest, WY. |
| 2022-05-17 | 0.88" (nickel) | 1 | A trained spotter reported nickel size hail to the west of Casper. |
| 2021-08-04 | 1.00" (quarter) | 1 | Trained spotters observed quarter-sized hail in and around Evansville. |
| 2020-08-01 | 1.25" (half dollar) | 1 | — |
| 2020-07-04 | 0.88" (nickel) | 1 | The public reported nickel size hail along US 20 26 at Hiland, Wyoming. |
| 2019-08-21 | 1.75" (golf ball) | 1 | Firefighters reported golf ball size hail along Cole Creek Road north of Evansville, Wyoming. |
| 2019-07-04 | 1.50" (ping pong ball) | 2 | The public reported ping pong ball sized hail north of Casper, Wyoming along Interstate 25 near the Highway 259 exit. |
| 2019-07-01 | 1.75" (golf ball) | 1 | A storm moved into Natrona County and rapidly strengthened as it moved toward Highway 220 southwest of Casper. The thunderstorm peaked in intensity along Hig… |
| 2018-08-05 | 0.88" (nickel) | 1 | The Natrona County Emergency Manager reported up to nickel size hail at the Bear Trap Music Festival on Casper Mountain. |
| 2018-07-28 | 1.75" (golf ball) | 2 | A trained spotter reported golf ball sized hail. |
| 2018-07-27 | 2.00" (hen egg) | 2 | Trained spotters reported anywhere from penny to quarter size hail on the east side of Casper and in Evansville. The storm intensified as it headed toward Ca… |
| 2018-07-26 | 1.75" (golf ball) | 2 | Trained spotters and a Natrona County Sheriff's Deputy reported quarter to golf ball size hail in Midwest and Edgerton. |
| 2018-07-16 | 1.00" (quarter) | 1 | Law enforcement reported quarter size hail at the Natrona County airport. |
| 2018-07-03 | 1.00" (quarter) | 1 | Trained spotters reported nickel to quarter size hail in Midwest and Edgerton. |
| 2018-06-23 | 1.00" (quarter) | 1 | Hail up to quarter size fell in Midwest. There was a large amount of small hail as well that caused localized flooding. The hail flowed into a wash and piled… |
| 2018-06-15 | 1.75" (golf ball) | 1 | Hail ranging from the size of nickels to golf balls fell in and around Midwest. |
| 2018-05-27 | 1.75" (golf ball) | 2 | Trained spotters and off duty NWS meteorologists reported from penny to golf ball size hail west of Alcova. |
| 2017-06-12 | 1.25" (half dollar) | 2 | The public reported hail up to the size of half dollars around Evansville. |
| 2017-06-11 | 1.00" (quarter) | 1 | Multiple trained spotters reported hail up to the size of quarters in Evansville. |
| 2017-06-05 | 1.00" (quarter) | 1 | A trained spotter reported nickel to quarter size hail, two miles east-southeast of Evansville. |
| 2016-09-04 | 0.75" (penny) | 1 | A strong thunderstorm produced penny sized hail in Bar Nunn north of Casper. |
| 2016-06-17 | 0.75" (penny) | 1 | A trained spotter reported penny-sized hail on Casper Mountain. |
Hail days by year
| Year | Hail days | Reports | Largest |
|---|---|---|---|
| 2026 | 1 | 1 | 1.00" (quarter) |
| 2025 | 2 | 5 | 2.25" (hen egg) |
| 2023 | 6 | 10 | 2.50" (tennis ball) |
| 2022 | 2 | 2 | 1.00" (quarter) |
| 2021 | 1 | 1 | 1.00" (quarter) |
| 2020 | 2 | 2 | 1.25" (half dollar) |
| 2019 | 3 | 4 | 1.75" (golf ball) |
| 2018 | 9 | 13 | 2.00" (hen egg) |
| 2017 | 3 | 4 | 1.25" (half dollar) |
| 2016 | 2 | 2 | 0.75" (penny) |
Damaging wind in Natrona County
Thunderstorm wind of 58 mph or more (the NWS severe threshold), 58 reports since 2016, strongest 86 mph. 5 tornadoes recorded in the county in the same period. Wind and tornado records are included in the extended report.
| Date | Peak gust | Reports | NWS narrative |
|---|---|---|---|
| 2025-06-24 | 86 mph | 1 | — |
| 2026-06-20 | 81 mph | 2 | Wind gusts over 58 mph occurred along Us 20 26 from Natrona to Evansville. The strongest wind gust recorded was 81 mph at the Natrona Cou… |
| 2020-06-06 | 81 mph | 2 | A line of thunderstorms moved northward through Natrona County and brought numerous reports of severe thunderstorm winds. Some of the mor… |
| 2026-06-25 | 77 mph | 2 | There were several reports of strong thunderstorm wind around Casper. The strongest gust was 67 mph at Scenic Drive on the south side of … |
| 2024-07-15 | 77 mph | 1 | A line of severe thunderstorms moved across Natrona County and brought high wind gusts to many locations. The public estimated a 77 mph w… |
| 2025-07-04 | 76 mph | 2 | A line of severe thunderstorms moved through Natrona County and brought high wind from Highland through Evansville. The strongest wind gu… |
| 2017-06-27 | 74 mph | 2 | The ASOS at the Casper Airport reported a wind gust of 64 mph. |
| 2023-04-27 | 70 mph | 1 | A 70 mph wind gust was reported at the Natrona County airport. |
Was hail recorded at your Natrona County address? Check free
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Address lookup by the U.S. Census Bureau geocoder. Records: NOAA NCEI Storm Events (final) plus SPC preliminary reports for storms newer than the latest compile — see methodology.
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Questions
What date did hail last hit Natrona County?
June 25, 2026, per the NWS Storm Events record. The largest since 2016 was 2.50" (tennis ball) on June 23, 2023.
Does a county record prove hail at my house?
No. NWS records are point and path observations. The absence of a nearby report does NOT prove that no hail fell at this address — it means no observation was logged nearby. A report of nearby hail documents the event; it does not by itself prove damage to a specific structure. The free check above shows what was recorded near your specific address, with distances.
Nearby counties
Converse County, WY (54 mi) · Johnson County, WY (73 mi) · Campbell County, WY (98 mi) · Niobrara County, WY (102 mi) · Fremont County, WY (102 mi) · Platte County, WY (104 mi) · Weston County, WY (112 mi) · Albany County, WY (119 mi)
See also: Wyoming hail history by city · all counties