Denver County, Colorado: hail history 2014–2026
The National Weather Service logged 168 hail reports in Denver County between January 2014 and June 2026. On 31 days the largest stone was an inch or bigger, the size NWS calls severe. The biggest was 2.75 inches, about the size of a baseball, reported on May 30, 2024 near (Den)Denver Intl Arp. June is the peak month (43% of reports).
- 168hail reports, 2014–2026
- 31days with hail of 1 in or more
- 8days with hail of 1.75 in or more (golf ball)
- 2.75 inlargest stone reported
Has severe hail hit Denver County since my roof was put on?
Our record covers 2014–2026 only. A roof older than 2014 has also been through hail we do not show here. A day counts when at least one report of 1 inch or larger was filed in the county, so it does not mean your own roof was hit; an inspection is the only way to know.
Year by year
| Year | Reports | Days 1 in+ | Days 1.75 in+ | Largest |
|---|---|---|---|---|
| 2014 | 12 | 6 | 0 | 1.25 in |
| 2015 | 16 | 2 | 0 | 1.5 in |
| 2016 | 16 | 3 | 2 | 2 in |
| 2017 | 9 | 1 | 1 | 2.5 in |
| 2018 | 4 | 1 | 1 | 2 in |
| 2019 | 17 | 5 | 0 | 1.5 in |
| 2020 | 1 | 1 | 0 | 1 in |
| 2021 | 9 | 1 | 0 | 1 in |
| 2022 | 1 | 0 | 0 | 0.75 in |
| 2023 | 36 | 8 | 2 | 1.75 in |
| 2024 | 33 | 1 | 1 | 2.75 in |
| 2025 | 1 | 1 | 0 | 1 in |
| 2026 (Jan–Jun) | 13 | 1 | 1 | 1.75 in |
When hail hits: reports by month
| Jan | 0 |
|---|---|
| Feb | 0 |
| Mar | 0 |
| Apr | 0 |
| May | 67 |
| Jun | 72 |
| Jul | 25 |
| Aug | 3 |
| Sep | 1 |
| Oct | 0 |
| Nov | 0 |
| Dec | 0 |
June alone has 43% of the 168 reports. Book an inspection before the first month with reports so crews still have dates.
Where hail of 1 inch or more was reported in Denver County
- 1 to 1.74 in
- 1.75 to 2.74 in (golf ball to tennis ball)
- 2.75 in and up (baseball)
140 reports of 1 inch or larger have coordinates. Each dot is a place a spotter, a trained observer or the public reported hail, not a measured storm path.
Sources: NOAA Storm Events (report locations) · US Census cartographic boundary (county outline, public domain)The ten biggest hail days
| Date | Largest hail | Reports | Where |
|---|---|---|---|
| May 30, 2024 | 2.75 in, a baseball | 32 | (Den)Denver Intl Arp |
| May 8, 2017 | 2.5 in, a tennis ball | 8 | Denver |
| July 15, 2016 | 2 in, a hen egg | 7 | Glendale |
| June 19, 2018 | 2 in, a hen egg | 3 | Glendale |
| June 1, 2026 | 1.75 in, a golf ball | 13 | Denver |
| June 29, 2023 | 1.75 in, a golf ball | 10 | Denver |
| May 24, 2016 | 1.75 in, a golf ball | 5 | Glendale |
| May 10, 2023 | 1.75 in, a golf ball | 1 | Denver |
| June 21, 2023 | 1.5 in, a ping-pong ball | 12 | Denver |
| June 4, 2015 | 1.5 in, a ping-pong ball | 8 | Denver |
“Severe thunderstorm broke out across Denver and the surrounding metro area and produced large damaging hail, strong winds, heavy rain and flash flooding.”
National Weather Service report, May 8, 2017
“Severe thunderstorms produced damaging hail, ranging in size from 1 to 2 inches in diameter.”
National Weather Service report, July 15, 2016
“Very large hail, up to 3 inches in diameter, pummeled portions of the Front Range Urban Corridor and extended across the northeast plains of Colorado. Reports of collapsed roofs due to hail were reported, with major hail damage across northern portions of the Denver metro area.”
National Weather Service report, June 19, 2018
Tornadoes in Denver County
NOAA lists 4 tornadoes in the county in 2014–2026; the 4 strongest are below. Tornadoes tear off whole roof sections, which is a different repair from hail bruising.
| Date | Rating | Path length | Width | Near |
|---|---|---|---|---|
| June 24, 2015 | EF1 | 2.8 mi | 50 yd | Denver |
| September 8, 2019 | EF0 | 0.01 mi | 25 yd | (Den)Denver Intl Arp |
| August 5, 2022 | EFU | 0.01 mi | 25 yd | (Den)Denver Intl Arp |
| June 12, 2022 | EFU | 0.01 mi | 50 yd | (Den)Denver Intl Arp |
Strongest thunderstorm gusts
| Date | Gust | Near |
|---|---|---|
| June 6, 2020 | 81 mph | Denver |
| July 22, 2019 | 79 mph | (Den)Denver Intl Arp |
| June 6, 2020 | 78 mph | (Den)Denver Intl Arp |
| July 24, 2016 | 74 mph | (Den)Denver Intl Arp |
| June 6, 2020 | 72 mph | (Den)Denver Intl Arp |
| June 6, 2020 | 70 mph | Denver |
Gust speeds are measured or estimated; reports in knots are converted to mph.
What to do with this
- Find the year your roof went on (closing papers, permit, a past invoice). Use the box above to see how many severe hail days it has lived through.
- After any day on the table, photograph the roof and keep the date: insurers ask for it.
- Get a free inspection from a local roofer: Denver.
Denver County cities we cover
Other Colorado counties
- Weld County (480 reports)
- Larimer County (201 reports)
- Jefferson County (209 reports)
- Pueblo County (182 reports)
- Adams County (170 reports)
All counties: hail history hub · live hail map. Data: NOAA Storm Events Database, 2014–2026, county level, public domain. The 2026 row is partial: NOAA's file ran to June 2026 when we loaded it on 2026-10-06. Reports are filed by spotters, trained observers and the public; one storm can produce many reports. Not a forecast, not legal advice.