Hail history for Adams County, Colorado
Every NOAA hail report filed in Adams County since 1955, with preliminary National Weather Service reports to November 3, 2026.
Readout · Adams County
- Last hail
- Aug 22, 2026
- 1.25 in, half dollar size · preliminary
- Hail days, last 5 years
- 18
- since Nov 3, 2021 · 89 reports
- Largest ever
- 4.50 in
- softball · Jul 13, 2011
503 reports on 227 days since 1955 · #14 of 54 Colorado counties
Hail map · Adams County
- Under 1 in
- 1–1.75 in
- 1.75–2.5 in
- 2.5–4 in
- 4 in +
- No size
For homeowners
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What the record says about Adams County
The latest hail report in Adams County is from August 22, 2026, 1.25 in (half dollar size). Since November 3, 2021 there have been 18 separate hail days; the biggest stones in that time were 2.75 in on May 10, 2023.
Over the 20 years 2006–2025, Adams County logged 257 reports on 89 hail days, about 12.8 reports a year. That is 4.1 times the median Colorado county (3.1 a year) and ranks #14 of 54 Colorado counties for all-time reports. Adams County holds 3% of all 15,580 hail reports in Colorado.
8% of reports with a size were 2 inches (hen egg) or larger, against 6% for the median Colorado county. The largest hail on record here is 4.50 in (softball) on July 13, 2011 near Watkins.
Reports were up 22% in 2016–2025 (141) compared with 2006–2015 (116). The busiest year was 2010, with 42 reports on 9 days. Hail here peaks in June (39% of reports); 70% fall between April and June.
Reports a year 2006–2025 average
- Adams County 12.8
- Median Colorado county 3.1
Hail days 2006–2025
- Adams County 89
- Median Colorado county 41
Share 2 in or larger of sized reports
- Adams County 8%
- Median Colorado county 6%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 13 | 1 | 14 | ||||||||||
| 2025 | 12 | 12 | |||||||||||
| 2024 | 24 | 2 | 3 | 29 | |||||||||
| 2023 | 16 | 13 | 5 | 34 | |||||||||
| 2022 | 0 | ||||||||||||
| 2021 | 1 | 1 | 2 | 3 | 9 | 16 | |||||||
| 2020 | 5 | 1 | 6 | ||||||||||
| 2019 | 4 | 3 | 2 | 3 | 12 | ||||||||
| 2018 | 1 | 9 | 6 | 2 | 18 | ||||||||
| 2017 | 5 | 1 | 6 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Aug 22, 2026 | 1 | 1.25 in | View |
| Jun 26, 2026 | 2 | 1.00 in | — |
| Jun 8, 2026 | 4 | 1.75 in | — |
| Jun 1, 2026 | 7 | 2.00 in | — |
| Jun 17, 2025 | 12 | 1.50 in | — |
| Jul 20, 2024 | 1 | 0.75 in | — |
| Jul 7, 2024 | 2 | 0.75 in | — |
| Jun 29, 2024 | 1 | 0.75 in | — |
| Jun 9, 2024 | 1 | 0.75 in | — |
| May 30, 2024 | 23 | 2.00 in | — |
| May 28, 2024 | 1 | 0.88 in | — |
| Aug 28, 2023 | 1 | 1.00 in | — |
| Aug 3, 2023 | 4 | 1.25 in | — |
| Jun 29, 2023 | 10 | 2.00 in | — |
| Jun 21, 2023 | 3 | 1.00 in | — |
| May 26, 2023 | 3 | 1.25 in | — |
| May 10, 2023 | 8 | 2.75 in | — |
| May 9, 2023 | 5 | 1.75 in | — |
Largest hail on record
| Date | Size | Location | Damage | Time · source |
|---|---|---|---|---|
| Jul 13, 2011 | 4.50 insoftball | Watkins | $164.8 million2 injured | 20:40 local · NCEI |
| Jun 2, 2005 | 4.00 ingrapefruit | 38 E Bennett | — | 15:33 local · NCEI |
| May 10, 2023 | 2.75 inbaseball | 2.07 N Strasburg | — | 15:47 local · NCEI |
| Jun 18, 2018 | 2.75 inbaseball | 0.69 N Brighton | — | 20:05 local · NCEI |
| May 26, 2010 | 2.75 inbaseball | 1.48 SSW Barr Lake | $70.0 million | 12:53 local · NCEI |
Size of every report
- Under 1 in 141 28%
- 1–2 in 323 64%
- 2 in + 39 8%
Most recent reports
| Date | Size | Location | Time · source |
|---|---|---|---|
| Aug 22, 2026 | 1.25 inhalf dollar | Brighton | 22:34 UTC · NWS prelim. |
| Jun 26, 2026 | 1.00 inquarter | 2.74 WNW Northglenn | 13:12 local · NCEI |
| Jun 26, 2026 | 1.00 inquarter | 1.73 WNW Federal Hgt | 13:03 local · NCEI |
| Jun 8, 2026 | 0.75 inpenny | 9.04 N Strasburg | 15:51 local · NCEI |
| Jun 8, 2026 | 1.75 ingolf ball | 5.52 NNE Denver Front Range A | 15:32 local · NCEI |
| Jun 8, 2026 | 0.75 inpenny | 1.59 W Commerce City | 14:42 local · NCEI |
| Jun 8, 2026 | 0.75 inpenny | 1.06 W Westminster | 14:36 local · NCEI |
| Jun 1, 2026 | 1.50 inping pong ball | 3.61 NNW Strasburg | 14:34 local · NCEI |
| Jun 1, 2026 | 2.00 inhen egg | 1.27 ESE Bennett | 14:08 local · NCEI |
| Jun 1, 2026 | 1.00 inquarter | 2.23 WSW Bennett | 14:06 local · NCEI |
| Jun 1, 2026 | 1.25 inhalf dollar | 0.87 SW Bennett | 14:06 local · NCEI |
| Jun 1, 2026 | 1.75 ingolf ball | 1.27 ESE Manila | 13:55 local · NCEI |
Cities and towns in Adams County
| Place | Reports | Largest |
|---|---|---|
| Westminster | 84 | 2.75 in |
| Thornton | 81 | 2.50 in |
| Bennett | 50 | 2.00 in |
| Brighton | 40 | 2.75 in |
| Commerce City | 22 | 2.00 in |
Smaller places with fewer than 10 reports
These places have too few reports for a page of their own, so their record lives here.
| Place | Reports | Hail days | Latest |
|---|---|---|---|
| Todd Creek | 6 | 5 | Jun 17, 2025 |
| Northglenn | 3 | 3 | May 30, 2024 |
| Derby | 2 | 1 | May 26, 2010 |
| Federal Heights | 2 | 2 | May 26, 2023 |
| Sherrelwood | 2 | 2 | May 8, 2017 |
| Welby | 2 | 2 | Jun 10, 2010 |
Questions about hail in Adams County
How often does it hail in Adams County, Colorado?
503 hail reports have been logged in Adams County since 1955. Over the 20 years 2006–2025 that averages 12.8 reports a year. That ranks #14 of 54 Colorado counties by number of reports.
When is hail season in Adams County?
Most reports come in June, May, July. June alone accounts for 39% of all reports.
What is the largest hail recorded in Adams County?
4.50 in (softball size) on July 13, 2011 near Watkins. 8% of reports here were 2 inches or larger.
When did it last hail in Adams County?
The most recent report in this data is from August 22, 2026 (1.25 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Adams County had in the last five years?
18 separate days with hail reports since November 3, 2021, adding up to 89 reports. The most recent was August 22, 2026.
Where does this hail data come from?
Hail reports come from the NOAA NCEI Storm Events Database, which the National Weather Service compiles from spotter, public, law enforcement and media reports. Recent days use preliminary NWS Local Storm Reports via the Iowa Environmental Mesonet until NOAA publishes final data. Only reported hail is counted, so areas with fewer people tend to have fewer reports.