Colorado hail map — August 13, 2026
NOAA radar detected hail of an inch or more over 15 Colorado cities on August 13, 2026. The largest stones — 2.00″, hen egg size — fell over Denver.
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- Cities hit
- 15
- in Colorado
- Largest stone
- 2.00″
- hen egg size
- Impact rating
- 7/10
- from stone size
Sizes come from NOAA radar, which runs about ±0.25″ against ground truth. It is canvass-targeting quality, not claim evidence.
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Colorado cities hit on August 13, 2026
What people on the ground measured in Colorado on August 13, 2026
9 reports filed with the National Weather Service — 2 from trained observers or officials. These are measured stones, not radar estimates, so they are the closest thing to proof that hail actually reached the ground.
- 1.75″ golf ball size Public2 W Arapahoe Park, CO4:25 PM MDTArapahoe County
Report from mPING: Golf Ball (1.75 in.).
- 1.50″ half dollar size Trained Spotter2 NNW Foxfield, CO4:15 PM MDTArapahoe County
- 1.50″ half dollar size Cocorahs2 NNW Foxfield, CO4:15 PM MDTArapahoe County
- 1.25″ half dollar size PublicCentennial, CO4:10 PM MDTArapahoe County
Report from mPING: Half Dollar (1.25 in.).
- 1.00″ quarter size Broadcast Media1 WNW Foxfield, CO4:07 PM MDTArapahoe County
2 to 3 feet deep hail drifts. Hail accumulation up to 3 inches in yards with most leaves stripped from trees. Quarter size hail found approximately an hour after hail fell. Time estimated by radar.
- 1.00″ quarter size Trained Spotter2 W Arapahoe Park, CO4:19 PM MDTArapahoe County
Also reported dents on metal roof vents, and a significant amount of leaves stripped from trees.
- 1.00″ quarter size Public1 W Arapahoe Park, CO4:30 PM MDTArapahoe County
Report from mPING: Quarter (1.00 in.).
- 0.75″ penny size Public1 NE Centennial, CO4:10 PM MDTArapahoe County
Report from mPING: Dime (0.75 in.).
- 0.75″ penny size Public3 W Arapahoe Park, CO4:19 PM MDTArapahoe County
Report from mPING: Dime (0.75 in.).
Reports come from the National Weather Service Local Storm Report feed, ingested every 15 minutes. A report records where the observer was, not the full extent of the swath — treat it as evidence about the storm, not about any one roof.
Other states hit on August 13, 2026
Other Colorado hail days
Shopping for a hail app to work Colorado?
This page is one storm. If you are deciding which tool to work Colorado with all season, these compare the ones roofers actually buy — with every price taken from the vendor's own site and linked.
- Best hail tracking apps, comparedHailMate, HailTrace, Hail Recon, HailStrike and RadarScope — every published price sourced and linked, and who each one is genuinely right for.
- HailMate vs HailTraceStreet-level NOAA swaths on a map your crew can knock, with the CRM already inside — instead of quote-only meteorologist maps billed on top of one.
- Hail map apps for roofers (and the Hail Recon alternative)Every storm on one map instead of loading dates one at a time — plus the canvassing and the whole claim, monthly, for what one state costs them a year.
- Best canvassing apps, comparedHailMate, SalesRabbit, SPOTIO, Knockio, RoofLink and Badger Maps — every published price sourced and linked, and two of them publish none.
Colorado hail on August 13, 2026
NOAA radar put hail of an inch or more over 15 Colorado cities that day. The largest stones — 2.00 inches, hen egg size — were over Denver. Every city hit is listed above with its own stone size.