Hail in Denver on Thursday, August 13, 2026
The Storm Prediction Center logged 7 hail reports in Denver on Thursday, August 13, 2026, between 4:07 pm and 4:30 pm MDT, in 1 of the metro's 7 counties. The largest was 1.75 inches at 2 W Arapahoe Park (Arapahoe County) at 4:25 pm. NOAA radar flagged 703 hail signatures inside the metro that day: 93 rated a 100% chance of hail and 92 with a maximum expected size of 1 inch or more.
Where hail was reported
Reports came from 3 places in Arapahoe County, named as the National Weather Service described them.
- Arapahoe Park 3 reports, up to 1.75 in
- Foxfield 3 reports, up to 1.50 in
- Centennial 1 report, up to 1.25 in
Every hail report logged that day
Times are Mountain Daylight Time. Sizes are in inches, as reported. The comment is the National Weather Service's text as published in the Storm Prediction Center's daily log.
| Time | Size | Place | County | NWS comment |
|---|---|---|---|---|
| 4:07 pm | 1.00 | 1 WNW Foxfield | Arapahoe | 2 to 3 feet deep hail drifts. Hail accumulation up to 3 inches in yards with most leaves stripped from trees. Quarter size hail found approximately an hour after hail f (BOU) |
| 4:10 pm | 1.25 | Centennial | Arapahoe | Report from mPING: Half Dollar (1.25 in.). (BOU) |
| 4:15 pm | 1.50 | 2 NNW Foxfield | Arapahoe | (BOU) |
| 4:15 pm | 1.50 | 2 NNW Foxfield | Arapahoe | (BOU) |
| 4:19 pm | 1.00 | 2 W Arapahoe Park | Arapahoe | Also reported dents on metal roof vents... and a significant amount of leaves stripped from trees. (BOU) |
| 4:25 pm | 1.75 | 2 W Arapahoe Park | Arapahoe | Report from mPING: Golf Ball (1.75 in.). (BOU) |
| 4:30 pm | 1.00 | 1 W Arapahoe Park | Arapahoe | Report from mPING: Quarter (1.00 in.). (BOU) |
What NEXRAD radar recorded inside the metro
703 signatures from 5 radars fell inside the metro's counties on this local date, counting every cell the algorithm rated from a 10% to a 100% chance of hail; 93 were rated 100% and 19 had a maximum expected size of 2 inches or more.
| Radar | Signatures | Rated 100% | 1 in or more | 2 in or more | Largest expected | First | Last |
|---|---|---|---|---|---|---|---|
| KDEN | 231 | 30 | 24 | 0 | 1.25 in | 1:40 pm | 7:57 pm |
| KPUX | 168 | 22 | 25 | 7 | 2.50 in | 1:42 pm | 8:07 pm |
| KCYS | 139 | 26 | 19 | 5 | 2.25 in | 2:14 pm | 7:59 pm |
| KFTG | 126 | 15 | 22 | 7 | 3.00 in | 1:36 pm | 7:58 pm |
| KGLD | 39 | 0 | 2 | 0 | 1.00 in | 6:08 pm | 7:31 pm |
Each radar that scans a storm writes its own signature about every 4 to 6 minutes, so one storm produces many rows and overlapping radars count it more than once. The raw rows for this day are in NOAA's Severe Weather Data Inventory.
Check an address for August 13, 2026
See, free, how many hail signatures NOAA recorded within 1, 3 and 5 miles of one address that day and the nearest spotter report. The full report is $19.
Spotter reports come from the Storm Prediction Center's preliminary daily logs, grouped here by local calendar date (Mountain Daylight Time) and by county: a report counts for Denver when its coordinates fall inside one of the metro's 7 counties (Adams, Arapahoe, Boulder, Broomfield, Denver, Douglas and Jefferson counties). Radar signatures are estimates from the Hail Detection Algorithm, not measured stones; they include every cell it rated, from a 10% to a 100% probability of hail. How these pages are built.