SwathIQ / Hail map / Colorado

Colorado Hail Map & History

Colorado's Front Range -- Denver, Aurora, and Colorado Springs -- forms 'Hail Alley,' where summer upslope storms drop damaging hail most years. Pick a date below to see the NOAA radar swath and reports, or check a specific address.

743

hail days since 2010

204

days with 2″+ hail

hail days this year

5.00″

largest stone on record

Colorado storm date

Colored swath = NOAA MRMS radar-estimated hail size; dots = NOAA SPC reports in Colorado. Radar-indicated, not a guarantee of damage.

Working Colorado? Turn a storm into a route.

A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Colorado addresses inside a hail swath above your size threshold into a door-knock list you can export, scoped to your approved markets.

Get free access Check an address

Hail history in Colorado

Since 2010, NOAA's Storm Prediction Center has logged 743 separate hail days in Colorado, including 204 days with hail 2″ or larger -- the size that routinely totals roofs. The largest stone on record here: 5.00″ on 2023-08-08 near 8 WSW Idalia, Yuma. The most recent reported hail day was 2026-06-08. Major metros watched here: Denver, Colorado Springs, Aurora, Fort Collins.

Top Colorado counties by hail frequency

County	Hail days since 2010	Largest stone
EL PASO	137	4.00″
WELD	104	4.25″
KIT CARSON	90	5.00″
YUMA	85	4.00″
LOGAN	82	4.00″
WASHINGTON	75	4.50″

Recent Colorado hail days

Date	Max hail	Reports
2026-06-08	3.40″	47
2026-06-03	1.00″	3
2026-06-01	2.00″	46
2026-05-30	1.56″	4
2026-05-29	1.00″	2
2026-05-28	1.00″	1
2026-05-21	4.50″	22
2026-05-17	1.50″	4

How to read the Colorado map

The colored swath is NOAA's MRMS radar estimate of the largest hail in each ~1 km cell; the dots are individual SPC ground reports. Yellow is around an inch, red is 1.5 to 2″, and purple is 2″ and up -- see how hail size maps to roof damage. Click any spot on the map to see the hail history at that point, or look up a full street address on the hail history by address tool. Today's nationwide activity is on today's hail report.

Nearby states

Missouri · Minnesota · Iowa · Illinois · North Dakota · Arkansas

FAQ

How often does it hail in Colorado?

NOAA has logged 743 hail days in Colorado since 2010, including 204 days with 2″+ hail.

Is the Colorado hail map free?

Yes, no login. A free account adds door-knock address lists and CRM exports.

How far back does the data go?

NOAA SPC storm reports since 2010, with high-resolution MRMS radar swaths for recent storms.

Data & method: NOAA/NWS Storm Prediction Center reports + NOAA MRMS MESH radar, Colorado only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.