Thornton, CO

Hail map for Thornton, CO — June 17, 2025

NOAA radar detected hail up to 1.00″ — quarter size — within 5 miles of Thornton on June 17, 2025.

Hail swath map for Thornton, CO on June 17, 2025 showing 1.00 inch hail.
Max hail size
1.00″
quarter
Impact rating
3/10
from stone size
Size bands over the city
1
distinct radar bands
Measured on the ground
1.50″
11.1 mi away · Public

Sizes come from NOAA MRMS radar (MESH), which runs about ±0.25″ against ground truth. It is canvass-targeting quality, not claim evidence.

Roofing contractors

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Homeowners

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Other towns hit on June 17, 2025

Wichita, KS2.00″Fort Collins, CO1.50″Greeley, CO1.50″Bartlesville, OK1.50″Windsor, CO1.50″Ponca City, OK1.50″Derby, KS1.50″Evans, CO1.50″Westminster, CO1.00″Boulder, CO1.00″Loveland, CO1.00″Broomfield, CO1.00″
Every Colorado city hit on June 17, 2025 →

Other hail dates for Thornton

June 26, 20261.00″June 8, 20261.00″June 1, 20261.00″June 25, 20251.00″May 30, 20242.00″August 3, 20231.00″
Every storm over Thornton →

What people on the ground measured in Thornton, CO on June 17, 2025

24 reports filed with the National Weather Service — 2 from trained spotters or officials. These are measured stones, not radar estimates, so they are the closest thing to proof that hail actually reached the ground.

  • 1.50″ half dollar size Public
    1 W Barr Lake, CO · 11.1 mi away4:39 AM MDTAdams County

    Report from mPING: Ping Pong Ball (1.50 in.).

  • 1.25″ half dollar size Trained Spotter
    3 W Henderson, CO · 5.1 mi away4:15 AM MDTAdams County
  • 1.00″ quarter size Public
    Northglenn, CO · 2.2 mi away2:10 PM MDTAdams County

    Report from mPING: Quarter (1.00 in.).

  • 1.00″ quarter size Public
    1 NE Thornton, CO · 2.8 mi away2:11 PM MDTAdams County

    Report from mPING: Quarter (1.00 in.).

  • 1.00″ quarter size Public
    3 NW Northglenn, CO · 5.2 mi away2:10 PM MDTAdams County
  • 1.00″ quarter size Public
    2 W Henderson, CO · 5.4 mi away4:21 AM MDTAdams County

    Report from mPING: Quarter (1.00 in.).

  • 1.00″ quarter size Public
    2 NW Henderson, CO · 6.0 mi away4:22 AM MDTAdams County

    Report from mPING: Quarter (1.00 in.).

  • 1.00″ quarter size Public
    1 NE Broomfield, CO · 6.3 mi away1:57 PM MDTBroomfield County

    Report from mPING: Quarter (1.00 in.).

  • 1.00″ quarter size Public
    2 W Broomfield, CO · 7.6 mi away1:57 PM MDTBroomfield County

    Report from mPING: Quarter (1.00 in.).

  • 1.00″ quarter size Public
    2 S Todd Creek, CO · 8.0 mi away4:16 AM MDTAdams County

    Report from mPING: Quarter (1.00 in.).

  • 1.00″ quarter size Public
    2 W Todd Creek, CO · 8.2 mi away4:21 AM MDTAdams County

    Report from mPING: Quarter (1.00 in.).

  • 1.00″ quarter size Public
    1 W Erie, CO · 12.3 mi away1:57 PM MDTBoulder County

    Report from mPING: Quarter (1.00 in.).

  • 1.00″ quarter size Trained Spotter
    2 WNW Lafayette, CO · 12.4 mi away1:48 PM MDTBoulder County
  • 0.75″ penny size Public
    2 NE Westminster, CO · 3.4 mi away2:05 PM MDTAdams County

    Report from mPING: Dime (0.75 in.).

  • 0.75″ penny size Public
    2 NE Thornton, CO · 4.0 mi away2:14 PM MDTAdams County

    Report from mPING: Dime (0.75 in.).

  • 0.75″ penny size Public
    3 NW Henderson, CO · 6.0 mi away4:23 AM MDTAdams County

    Report from mPING: Dime (0.75 in.).

  • 0.75″ penny size Public
    1 NE Lafayette, CO · 10.8 mi away1:52 PM MDTBoulder County

    Report from mPING: Dime (0.75 in.).

  • 0.75″ penny size Public
    1 NE Lafayette, CO · 10.8 mi away3:53 AM MDTBoulder County

    Report from mPING: Dime (0.75 in.).

  • 0.75″ penny size Public
    1 W Erie, CO · 12.3 mi away2:23 AM MDTBoulder County

    Report from mPING: Dime (0.75 in.).

  • 0.75″ penny size Public
    1 NW Erie, CO · 12.6 mi away1:55 PM MDTWeld County

    Report from mPING: Dime (0.75 in.).

  • 0.75″ penny size Public
    2 N Lakewood, CO · 12.6 mi away2:06 PM MDTJefferson County

    Report from mPING: Dime (0.75 in.).

  • 0.75″ penny size Public
    2 N Lakewood, CO · 12.9 mi away2:09 PM MDTJefferson County

    Report from mPING: Dime (0.75 in.).

  • 0.75″ penny size Public
    2 E Pleasant View, CO · 13.6 mi away2:08 PM MDTJefferson County

    Report from mPING: Dime (0.75 in.).

  • 0.70″ penny size Park/Forest Srvc
    2 N Lakewood, CO · 12.9 mi away2:13 PM MDTJefferson County

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.

FAQ

Thornton hail on June 17, 2025

NOAA radar estimated stones up to 1.00 inches — quarter size — within about 5 miles of Thornton that day, across 1 distinct size band. Sizes vary street to street inside a single swath.

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