Wyoming · 23 counties

Hail history in Wyoming

Wyoming has 4,866 recorded hail events in the NOAA Storm Events Database since 1950 — 3,634 of them 1″ or larger. The largest on record: 5.0″ (grapefruit) in Laramie County on June 8, 1968.

Recorded events 4,866 since 1950

1″ or larger 3,634 NWS severe threshold

Largest recorded 5.0″ grapefruit · Laramie County

Peak month Jun most recorded events

When it hails in Wyoming

All recorded Wyoming events by month, 1950–present · data through April 2026.

Every Wyoming county, ranked by recorded hail

Recorded hail events per county · NOAA Storm Events Database · through April 2026
County	Events	≥1″	Largest	Most recent
Laramie County	1,104	853	5.0″	2025
Campbell County	580	422	4.25″	2024
Crook County	504	387	4.25″	2024
Goshen County	447	383	4.5″	2025
Platte County	384	311	4.25″	2025
Weston County	301	217	3.5″	2024
Sheridan County	215	142	3.0″	2025
Niobrara County	214	181	4.25″	2025
Natrona County	165	113	3.0″	2025
Converse County	160	138	4.0″	2025
Johnson County	152	94	3.0″	2025
Fremont County	136	80	2.0″	2025
Albany County	126	96	4.5″	2025
Hot Springs County	65	36	2.5″	2025
Park County	65	36	2.0″	2025
Big Horn County	62	38	2.5″	2023
Washakie County	49	27	2.75″	2019
Carbon County	35	24	2.0″	2024
Lincoln County	34	21	1.75″	2025
Teton County	34	16	1.75″	2022
Sublette County	18	12	1.75″	2025
Sweetwater County	13	6	1.75″	2023
Uinta County	3	1	1.0″	2020

Read the record honestly: Storm Events contains what was reported to the National Weather Service. Populated counties report more; rural counties under-report. County-to-county comparisons say as much about reporting as about weather.

Questions about hail in Wyoming

How often does it hail in Wyoming?

The NOAA Storm Events Database records 4,866 hail events for Wyoming since 1950, 3,634 of them 1″ (quarter size) or larger. Recorded frequency varies sharply by county — the table on this page ranks all 23.

What is the largest hail ever recorded in Wyoming?

5.0″ (grapefruit), recorded in Laramie County on June 8, 1968. See it at true size on the actual-size hail chart.

When is hail season in Wyoming?

Recorded events peak in June. The by-month chart on this page shows the full seasonal shape — and each county page carries its own, since timing shifts across the state.

How do I check hail history for my address in Wyoming?

Storm Events records events at the county level, so pick your county below or use the ZIP lookup. For "did it hail on this date" claim questions, the date lookup searches every recorded Wyoming event.

Source: NOAA/NCEI Storm Events Database, public domain. Each county page shows the full event timeline, month profile, and storm-report narratives.