Hail and tornadoes in Adams County, CO

Since October 2020, radar estimated hail somewhere in Adams County, CO on 119 days. The biggest estimate: 3 in or larger (teacup), on Mon, Jun 1, 2026. Hail was reported to the National Weather Service inside the county on 21 days.

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

Days with hail
119
since October 2020
1 inch or larger
87
days, estimated or reported
Largest radar estimate
3+ in
Mon, Jun 1, 2026
Largest reported
2.75 in
Wed, May 10, 2023

Radar estimates are NOAA's MESH: the largest hail the radar estimates aloft, on cells about 0.7 mile across, shown as the lower bound of a size band (“1.5+”). They often run larger than what reached the ground, and they aren't evidence of damage at any address.

Radar-estimated hail on Mon, Jun 1, 2026 around the place, with the hail reported that day
Mon, Jun 1, 2026: radar-estimated hail around Adams County, CO, with the hail reported that day.

Hail on record since 1955

NOAA's Storm Events database lists 381 hail reports in Adams County, CO on 149 days, 31 of them 2 inches or larger. The largest: 4.5 in, near Watkins, on Wed, Jul 13, 2011.

By decade: 1990s: 37 · 2000s: 105 · 2010s: 129 · 2020s: 110

Tornadoes since 1950

98 tornadoes have touched Adams County, CO since 1950, none of them rated F3/EF3 or stronger.

Strongest

  • Sun, May 18, 2025 · EF2 · 4.44 mi long, 400 yd wide · near Bennett
  • Sat, Jul 13, 1996 · F2 · 12 mi long, 440 yd wide · near Strasburg
  • Fri, Jul 27, 2018 · EF1 · 1.97 mi long, 50 yd wide · near Strasburg
  • Fri, May 15, 2015 · EF1 · 0.1 mi long, 100 yd wide · near Strasburg
  • Sat, Jun 21, 2014 · EF1 · 0.25 mi long, 100 yd wide · near Barr Lake

Most recent

  • Fri, Jun 13, 2025 · EFU · 0.15 mi long, 10 yd wide · near Barr Lake
  • Sun, May 18, 2025 · EF2 · 4.44 mi long, 400 yd wide · near Bennett
  • Mon, Aug 19, 2024 · EFU · 0.66 mi long, 25 yd wide · near Leader
  • Mon, Aug 19, 2024 · EFU · 0.56 mi long, 20 yd wide · near Shamrock
  • Wed, May 29, 2024 · EF0 · 0.3 mi long, 30 yd wide · near Leader
  • Wed, May 29, 2024 · EF0 · 0.73 mi long, 50 yd wide · near Leader
  • Sat, Jul 29, 2023 · EFU · 0.01 mi long, 25 yd wide · near Bennett
  • Thu, Jul 6, 2023 · EFU · 0.01 mi long, 25 yd wide · near Denver Front Range A
  • Sat, Apr 22, 2023 · EF0 · 0.01 mi long, 50 yd wide · near Aurora
  • Fri, Jul 29, 2022 · EFU · 0.01 mi long, 50 yd wide · near Commerce City

By decade: 1990s: 25 · 2000s: 36 · 2010s: 23 · 2020s: 14

Still loading: NOAA's record goes back to 1950, and 1995 onward is in so far.

Every hail day since October 2020

  • Fri, Sep 25, 2026

    Radar estimate anywhere in the county: 2 in or larger (hen egg)

    No hail reported in the county.

  • Fri, Sep 18, 2026

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Mon, Sep 7, 2026

    Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)

    No hail reported in the county.

  • Sun, Sep 6, 2026

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Wed, Aug 26, 2026

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Sat, Aug 22, 2026

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    Reported in the county
    • 1 in (1 SE Brighton, CO)
    • 1.25 in (Brighton, CO)
  • Fri, Aug 14, 2026

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Thu, Aug 13, 2026

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Wed, Jul 29, 2026

    Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)

    No hail reported in the county.

  • Tue, Jul 28, 2026

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Wed, Jul 22, 2026

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Fri, Jul 10, 2026

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Wed, Jul 8, 2026

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Sat, Jul 4, 2026

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Fri, Jul 3, 2026

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Thu, Jul 2, 2026

    Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)

    No hail reported in the county.

  • Fri, Jun 26, 2026

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    Reported in the county
    • 1 in (2 ESE Broomfield, CO)
    • 1 in (Westminster, CO)
    • 1 in (1 SSW Westminster, CO)
  • Wed, Jun 24, 2026

    Radar estimate anywhere in the county: 2 in or larger (hen egg)

    No hail reported in the county.

  • Sun, Jun 21, 2026

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Sat, Jun 20, 2026

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Mon, Jun 8, 2026

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    Reported in the county
    • 1.75 in (7 N Manila Village, CO)
  • Mon, Jun 1, 2026

    Radar estimate anywhere in the county: 3 in or larger (teacup)

    Reported in the county
    • 1.5 in (3 NW Strasburg, CO)
    • 1.75 in (3 W Bennett, CO)
    • 1.25 in (3 N Aurora, CO)
  • Tue, Sep 16, 2025

    Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)

    No hail reported in the county.

  • Thu, Sep 11, 2025

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Mon, Aug 18, 2025

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Thu, Aug 14, 2025

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Sun, Aug 10, 2025

    Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)

    No hail reported in the county.

  • Sat, Aug 9, 2025

    Radar estimate anywhere in the county: 2 in or larger (hen egg)

    No hail reported in the county.

  • Sat, Aug 2, 2025

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Thu, Jul 31, 2025

    Radar estimate anywhere in the county: 2 in or larger (hen egg)

    No hail reported in the county.

  • Tue, Jul 29, 2025

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Thu, Jul 24, 2025

    Radar estimate anywhere in the county: 2 in or larger (hen egg)

    No hail reported in the county.

  • Wed, Jul 16, 2025

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Mon, Jul 14, 2025

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Fri, Jul 11, 2025

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Mon, Jul 7, 2025

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Sun, Jul 6, 2025

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Sun, Jun 29, 2025

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Wed, Jun 25, 2025

    Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)

    No hail reported in the county.

  • Sun, Jun 22, 2025

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Tue, Jun 17, 2025

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    Reported in the county
    • 1 in (Northglenn, CO)
  • Mon, Jun 16, 2025

    Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)

    Reported in the county
    • 1.5 in (1 W Barr Lake, CO)
    • 1.25 in (3 W Henderson, CO)
  • Fri, Jun 13, 2025

    Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)

    No hail reported in the county.

  • Sun, Jun 1, 2025

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Mon, May 26, 2025

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Sat, May 24, 2025

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Sun, May 18, 2025

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Sat, May 17, 2025

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Wed, May 14, 2025

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Mon, Aug 19, 2024

    Radar estimate anywhere in the county: 3 in or larger (teacup)

    No hail reported in the county.

  • Wed, Aug 7, 2024

    Radar estimate anywhere in the county: 2 in or larger (hen egg)

    No hail reported in the county.

  • Tue, Aug 6, 2024

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Sat, Jul 20, 2024

    Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)

    No hail reported in the county.

  • Wed, Jul 17, 2024

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Mon, Jul 15, 2024

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Sun, Jul 7, 2024

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Wed, Jul 3, 2024

    Radar estimate anywhere in the county: 2 in or larger (hen egg)

    No hail reported in the county.

  • Fri, Jun 14, 2024

    Radar estimate anywhere in the county: 2 in or larger (hen egg)

    No hail reported in the county.

  • Mon, Jun 10, 2024

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Sun, Jun 9, 2024

    Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)

    No hail reported in the county.

  • Sat, Jun 8, 2024

    Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)

    No hail reported in the county.

  • Fri, May 31, 2024

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Thu, May 30, 2024

    Radar estimate anywhere in the county: 3 in or larger (teacup)

    Reported in the county
    • 1.25 in (5 ESE Lochbuie, CO)
    • 2 in (3 N Aurora, CO)
    • 1.5 in (3 E Commerce City, CO)
    • 2 in (2 SSW Henderson, CO)
    • 1.5 in (2 E Broomfield, CO)
    • and 1 more
  • Tue, May 28, 2024

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Mon, May 20, 2024

    Radar estimate anywhere in the county: 3 in or larger (teacup)

    No hail reported in the county.

  • Thu, Sep 14, 2023

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Mon, Aug 28, 2023

    Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)

    Reported in the county
    • 1 in (4 NW Leader, CO)
  • Fri, Aug 4, 2023

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Thu, Aug 3, 2023

    Radar estimate anywhere in the county: 2 in or larger (hen egg)

    Reported in the county
    • 1.25 in (4 SW Todd Creek, CO)
    • 1 in (Thornton, CO)
  • Tue, Aug 1, 2023

    Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)

    No hail reported in the county.

  • Mon, Jul 31, 2023

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Sat, Jul 29, 2023

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Fri, Jul 21, 2023

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Thu, Jul 20, 2023

    Radar estimate anywhere in the county: 2 in or larger (hen egg)

    No hail reported in the county.

  • Sat, Jul 15, 2023

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Sat, Jul 8, 2023

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Thu, Jul 6, 2023

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Tue, Jul 4, 2023

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Fri, Jun 30, 2023

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Thu, Jun 29, 2023

    Radar estimate anywhere in the county: 3 in or larger (teacup)

    Reported in the county
    • 2 in (Bennett, CO)
    • 1.25 in (Manila Village, CO)
    • 1 in (6 NE Shamrock, CO)
    • 1.5 in (2 NNE Watkins, CO)
  • Wed, Jun 21, 2023

    Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)

    Reported in the county
    • 1 in (1 SW Todd Creek, CO)
    • 1 in (2 NE Thornton, CO)
  • Sat, Jun 17, 2023

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Sat, Jun 10, 2023

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Thu, Jun 8, 2023

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Tue, Jun 6, 2023

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Wed, May 31, 2023

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    Reported in the county
    • 1.5 in (2 SW Barr Lake, CO)
  • Sun, May 28, 2023

    Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)

    No hail reported in the county.

  • Sat, May 27, 2023

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Fri, May 26, 2023

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    Reported in the county
    • 1.25 in (FEDERAL HEIGHTS, CO)
    • 1 in (1 ENE WESTMINSTER, CO)
  • Thu, May 25, 2023

    Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)

    No hail reported in the county.

  • Wed, May 24, 2023

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Thu, May 18, 2023

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Wed, May 10, 2023

    Radar estimate anywhere in the county: 2 in or larger (hen egg)

    Reported in the county
    • 1.75 in (5 N STRASBURG, CO)
    • 1.25 in (9 N DEER TRAIL, CO)
    • 2.75 in (1 N STRASBURG, CO)
    • 2 in (1 NW STRASBURG, CO)
    • 2.5 in (2 SE ADENA, CO)
  • Tue, May 9, 2023

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    Reported in the county
    • 1.75 in (5 ESE LOCHBUIE, CO)
    • 1 in (1 NE BRIGHTON, CO)
    • 1 in (2 NE THORNTON, CO)
  • Sat, Oct 1, 2022

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Sun, Aug 7, 2022

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Sat, Aug 6, 2022

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Tue, Jul 26, 2022

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Tue, Jul 12, 2022

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Wed, Jul 6, 2022

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Tue, Jun 7, 2022

    Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)

    No hail reported in the county.

  • Sun, May 29, 2022

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Tue, May 17, 2022

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Fri, Apr 29, 2022

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Mon, Jan 3, 2022

    Radar estimate anywhere in the county: 3 in or larger (teacup)

    No hail reported in the county.

  • Sat, Sep 4, 2021

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Thu, Aug 19, 2021

    Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)

    Reported in the county
    • 1.5 in (1 W BENNETT, CO)
    • 1 in (2 NE NORTHGLENN, CO)
    • 1.25 in (2 N FEDERAL HEIGHTS, CO)
    • 1 in (2 E BROOMFIELD, CO)
  • Sat, Jul 17, 2021

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Mon, Jul 5, 2021

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Fri, Jul 2, 2021

    Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)

    Reported in the county
    • 1.75 in (BRIGHTON, CO)
  • Thu, Jul 1, 2021

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Fri, Jun 25, 2021

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Sat, Jun 19, 2021

    Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)

    Reported in the county
    • 1.25 in (6 SE SHAMROCK, CO)
  • Sun, Jun 13, 2021

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    Reported in the county
    • 1.75 in (3 N AURORA, CO)
  • Thu, Jun 10, 2021

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Sun, Jun 6, 2021

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Sat, May 22, 2021

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    Reported in the county
    • 1 in (9 SSE PROSPECT VALLEY, CO)
  • Tue, Apr 27, 2021

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    Reported in the county
    • 1 in (11 N BENNETT, CO)
  • Mon, Apr 26, 2021

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

Radar estimates and reports are for anywhere inside the county's boundary. 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. From NOAA's Storm Events Database (NCEI), which records tornadoes from 1950, hail and thunderstorm wind from 1955, and every kind of storm from 1996. A tornado that crossed county lines is counted in each county it touched. Recent months are added as NCEI publishes them, a few months behind. Damage is in the dollars of its year and is often an estimate.