Arapahoe County was hit as recently as 2026-06-01, 60 days ago. Arapahoe County is hit in most years, and usually several times over. The largest stone on record here is 4.25 inches and 4.2 times the National Weather Service's 1 inch severe criterion, reported on 2010-06-10 near Last Chance.
Colored swath = NOAA MRMS radar-estimated hail size; dots = NOAA SPC reports in Colorado. Radar-indicated, not a guarantee of damage.
The last hail here fell on 2026-06-01, around Bennett. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Arapahoe County addresses inside a hail swath above your size threshold into a door-knock list you can export, scoped to your approved markets.
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See call-center options ->NOAA's Storm Prediction Center has logged 82 separate hail days here since 2010 -- 4.8 a year over 17 years of record. Those days carry 245 separate reports between them, two or three on a typical one. No year since 2010 has gone by without at least one. The busiest single year was 2019, with 10 hail days. The last five years have been quieter than the long run: 16 days since 2022, against 5.5 a year before that.
14 of the 82 days reached 2 inches or more -- 17%, or about one hail day in 6, the last on 2023-06-29. They land in the same month as everything else, June. 27 of the 82 days reached golf-ball size, 1.75 inches or bigger.
Across the whole of Colorado, see the Colorado hail map and history.
Reports cluster nearest Aurora -- 29 of the county's 82 hail days -- then Deer Trail (13), Centennial (12), Strasburg (11) and Arapahoe Park (10). Beyond those, NOAA names Buckley AFB, Byers, Bennett, Foxfield, Englewood, Country Gardens, Littleton, Cherry Creek Reserv and Parker on more than one hail day apiece.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Centennial | 8 | 3.00″ |
| Aurora | 7 | 2.50″ |
| 3 W Aurora | 4 | 1.50″ |
| Byers | 4 | 1.50″ |
| Deer Trail | 4 | 1.50″ |
The season runs May through July: 70 of the 82 hail days on record fall in those 3 months (85%). June is the single busiest month, with 34 of them (41%). That peak sits inside the window rather than at either end. Hail has also been reported in April, August and September, outside that window. Reports span 6 of the 12 calendar months; the other 6 have never produced one.
| Month | Hail days |
|---|---|
| April | 2 |
| May | 18 |
| June | 34 |
| July | 18 |
| August | 8 |
| September | 2 |
That day put 5 reports on the map, the biggest 1.75 inches near Bennett. 2 hail days have already been reported this year.
| Date | Max hail | Reports |
|---|---|---|
| 2026-06-01 | 1.75″ | 5 |
| 2026-05-21 | 1.50″ | 2 |
| 2025-07-06 | 1.00″ | 1 |
| 2025-05-18 | 1.50″ | 2 |
| 2024-06-09 | 1.50″ | 7 |
| 2024-05-31 | 1.00″ | 1 |
| 2024-05-30 | 1.75″ | 13 |
| 2023-07-08 | 1.75″ | 7 |
The colored swath is NOAA's MRMS radar estimate of the largest hail per ~1 km cell; the dots are SPC ground reports. Yellow is about an inch, red 1.5 to 2″, purple 2″ and up (hail size vs roof damage). On this county's worst day the reports reached 4.25 inches, which is the purple band. Look up a street address with the hail history by address tool.
The nearest counties with a page of their own: Adams County (62 hail days), Denver County (36) and Douglas County (82). Arapahoe County sits in between.
Adams County · Denver County · Douglas County
Back to the Colorado hail map or the U.S. hail map.
Data & method: NOAA/NWS Storm Prediction Center reports + NOAA MRMS MESH radar, Arapahoe County, Colorado only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.