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Hail history for Johnstown, CO

Last hail within 10 milesJul 2, 20261.25 in (half dollar)

Hail days, last 12 months2

Largest hail since 20062.75 in (baseball)Jun 17, 2025

Hail days since 200655

Days with hail 1 inch or larger40

Tornadoes within 10 miles3

Damaging wind reports within 10 miles19

Hail has been reported within 10 miles of Johnstown on 55 days since 2006. The largest stones measured 2.75 in (baseball) on Jun 17, 2025. Hail is most common here in June and May.

Recent hail near Johnstown

Date	Hail size	Where	Source
Jul 2, 2026	1.25 in half dollar	Johnstown 3 hail reports · closest 1 mi from Johnstown	NWS storm report (preliminary)
Jun 24, 2026	1.75 in golf ball	Berthoud 3 hail reports · closest 9 mi from Johnstown	NOAA Storm Events
Jul 24, 2025	1 in quarter	Johnstown 1 hail report · closest 7 mi from Johnstown	NOAA Storm Events
Jun 17, 2025	2.75 in baseball	Johnstown, Platteville 7 hail reports · closest 2 mi from Johnstown	NOAA Storm Events
Jun 4, 2025	0.75 in penny	Platteville 1 hail report · closest 9 mi from Johnstown	NOAA Storm Events
May 18, 2025	0.75 in penny	Johnstown 1 hail report · closest near the center of Johnstown	NOAA Storm Events

One row per day: the largest hail reported that day within 10 miles, the places and the number of reports.

Hail days near Johnstown by year

When hail season peaks near Johnstown

Of the 55 hail days since 2006, most fell in June (19) and May (15).

Largest hail storms near Johnstown

Jun 17, 2025 · 2.75 in (baseball) · Johnstown (3 mi from Johnstown)

National Weather Service description (English): Picture from Social Media with a few larger stones as well.

Jul 10, 2009 · 2 in (hen egg) · Johnstown (4 mi from Johnstown)

Jul 20, 2009 · 2 in (hen egg) · Platteville (8 mi from Johnstown)

National Weather Service description (English): Two separate storms moved across Miller Farm, near State Highway 66 and County Road 19, and caused widespread crop damage. Approximately 200 acres of the farm was devastated by strong winds, heavy rain and hail. In all, 400 farms were directly impacted by the storms with widespread crop damage across Larimer and Weld Counties.

Jul 5, 2019 · 2 in (hen egg) · Windsor (9 mi from Johnstown)

May 22, 2008 · 1.75 in (golf ball) · Loveland (9 mi from Johnstown)

Tornadoes within 10 miles of Johnstown

Date	Rating	Where	Path
May 7, 2014	EF0	Platteville 9 mi from Johnstown	2.6 mi long, 100 yd wide
Aug 3, 2013	EF0	Johnstown 6 mi from Johnstown	0.1 mi long, 50 yd wide
May 18, 2010	EF0	Firestone J Bar B Airport 7 mi from Johnstown	0.1 mi long, 50 yd wide

Damaging thunderstorm winds near Johnstown

19 reports of damaging thunderstorm wind within 10 miles of Johnstown since 2006, on 13 days. The strongest measured gust was 64 mph on May 31, 2023.

Date	Strongest gust	Where	Source
Jul 23, 2026	63 mph, measured	Loveland 2 wind reports	NWS storm report (preliminary)
Jul 20, 2024	60 mph, estimated	Campion, Mead 2 wind reports	NOAA Storm Events
Aug 5, 2023	69 mph, estimated	Johnstown 1 wind report	NOAA Storm Events
May 31, 2023	70 mph, estimated	Johnstown, Windsor, La Salle 4 wind reports	NOAA Storm Events
Jul 28, 2022	60 mph, estimated	Berthoud 1 wind report	NOAA Storm Events
Jun 6, 2020	61 mph, measured	Berthoud, Fort Collins/Loveland 2 wind reports	NOAA Storm Events
Aug 4, 2018	58 mph, measured	Fort Collins/Loveland 1 wind report	NOAA Storm Events
Aug 29, 2014	60 mph, measured	Windsor 1 wind report	NOAA Storm Events
Aug 23, 2014	61 mph, measured	Fort Collins/Loveland 1 wind report	NOAA Storm Events
Jun 8, 2011	69 mph, estimated	Windsor 1 wind report	NOAA Storm Events

Severe thunderstorm wind means gusts of 58 mph or more, or wind that caused damage. Measured gusts come from weather stations; estimated ones from spotters and damage surveys.

Filing a roof or car hail claim?

Insurers ask for the date of loss. The dates on this page are when hail was reported near Johnstown; hail can hit one street and miss the next, so a report is not proof of damage at your address. A licensed roofer or your insurance adjuster can inspect the roof. Many policies set a time limit for filing a claim — check yours.

Nearby cities

Data: NOAA NCEI Storm Events Database (final records through Jun 30, 2026) and National Weather Service Local Storm Reports (preliminary, since then). Distances are measured from the center of Johnstown.

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