Hail in Thornton, CO

Since January 2025, radar estimated hail within 5 miles of Thornton on 9 days. The biggest estimate: 1.5 in or larger (ping-pong ball), on Mon, Jun 16, 2025. Hail was reported to the National Weather Service within 10 miles on 6 days.

Still loading: radar estimates go back to Wed, Oct 14, 2020, and the earlier years are being added.

By year: 2026: 5 · 2025: 5

Every hail day

• Sun, Sep 6, 2026

  Radar estimate within 5 miles: 1 in or larger (quarter)

  No hail reported within 10 miles.

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• Fri, Aug 14, 2026

  Radar estimate within 5 miles: 1 in or larger (quarter)

  No hail reported within 10 miles.

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• Fri, Jun 26, 2026

  Radar estimate within 5 miles: 1 in or larger (quarter)

  Reported within 10 miles

  • 1 in, 3.9 mi NW (2 ESE Broomfield, CO)
  • 1 in, 4.2 mi W (Westminster, CO)
  • 1 in, 4.2 mi W (1 SSW Westminster, CO)
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• Mon, Jun 8, 2026

  Radar estimate within 5 miles: 1 in or larger (quarter)

  Reported within 10 miles

  • 1.5 in, 6.6 mi SW (2 E Arvada, CO)
  • 1 in, 9.1 mi SW (1 NW Wheat Ridge, CO)
  • 1 in, 9.1 mi SW (1 N Wheat Ridge, CO)
  • 1 in, 10 mi SW (1 W Wheat Ridge, CO)
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• Mon, Jun 1, 2026

  Radar estimate within 5 miles: 1 in or larger (quarter)

  Reported within 10 miles

  • 1 in, 7.9 mi S (2 NW Denver, CO)
  • 1.75 in, 8.3 mi S (1 NW Denver, CO)
  • 1.75 in, 8.6 mi S (4 E Denver, CO)
  • 1 in, 8.9 mi SW (1 E Edgewater, CO)
  • 1 in, 8.9 mi S (Denver, CO)
  • and 7 more
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• Sun, Jul 6, 2025
  Reported within 10 miles

  • 1 in, 9.3 mi S (4 E Denver, CO)
  • 1.5 in, 9.4 mi SW (Edgewater, CO)
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• Wed, Jun 25, 2025

  Radar estimate within 5 miles: 1 in or larger (quarter)

  No hail reported within 10 miles.

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• Tue, Jun 17, 2025

  Radar estimate within 5 miles: 1 in or larger (quarter)

  Reported within 10 miles

  • 1 in, 2.2 mi N (Northglenn, CO)
  • 1 in, 6.3 mi NW (1 NE Broomfield, CO)
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• Mon, Jun 16, 2025

  Radar estimate within 5 miles: 1.5 in or larger (ping-pong ball)

  Reported within 10 miles

  • 1.25 in, 5.1 mi NE (3 W Henderson, CO)
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• Sun, Jun 1, 2025

  Radar estimate within 5 miles: 0.75 in or larger (penny)

  No hail reported within 10 miles.

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Measured from Thornton's centre: radar estimates within 5 miles, reports within 10. Radar estimates come from NOAA's MRMS estimated hail size (MESH), the largest hail the radar estimates aloft on a ~1 km grid. They often run larger than the hail that reached the ground, and they aren't an observation at any address. Reports are what people reported to the National Weather Service. Neither is proof of damage or an official record for an insurance claim.