◆ NORTHGLENN, CO HAIL HISTORY · ADAMS COUNTY
Northglenn, CO hail history & hail map
Northglenn, Colorado has had 13 hail events in the past 5 years, with hail up to 2.25″ (Golf Ball). Most recent: Jun 26, 2026. Free hail map, storm dates and NWS/CoCoRaHS reports.
✓ Data compiled by a degreed meteorologist from NOAA & NWS sources
13Hail events in the past 5 years
2.25″Largest recorded hail · Golf Ball
2.25″Largest ground report (within 3 mi)
1.00″Largest radar-estimated hail

Radar hail swaths (NOAA MRMS MESH) in the past 5 years over Northglenn, shaded by hail size; blue dots are ground reports.
Recent hail storm dates in Northglenn
| Date | Peak hail | Sources |
|---|---|---|
| Jun 26, 2026 | 1.00″ Quarter | 4 ground reports (max 1.00″) |
| Jun 25, 2025 | 0.38″ Small | 2 ground reports (max 0.38″) |
| Jun 17, 2025 | 1.00″ Quarter | 6 ground reports (max 1.00″) |
| Jul 15, 2024 | 0.25″ Small | 1 ground report (max 0.25″) |
| Jul 7, 2024 | 0.75″ Penny | 3 ground reports (max 0.75″) |
| May 31, 2024 | 2.25″ Golf Ball | Radar 1.00″ · 17 ground reports (max 2.25″) |
| May 30, 2024 | 1.50″ Ping Pong Ball | 2 ground reports (max 1.50″) |
| Sep 14, 2023 | 0.25″ Small | 1 ground report (max 0.25″) |
| Jun 29, 2023 | 0.25″ Small | 1 ground report (max 0.25″) |
| Jun 28, 2023 | 0.25″ Small | 1 ground report (max 0.25″) |
| Jun 17, 2023 | 0.25″ Small | 1 ground report (max 0.25″) |
| May 31, 2023 | 1.00″ Quarter | 21 ground reports (max 1.00″) |
| May 26, 2023 | 1.25″ Half Dollar | 5 ground reports (max 1.25″) |
More Colorado hail history
All Colorado cities & hail days →
Events count days with NOAA MRMS radar hail over Northglenn (39.910, -105.020) or an NWS / CoCoRaHS hail report within 3 miles. Data window: NOAA MRMS radar hail swaths Oct 2021 – Nov 2026; NWS / NCEI Storm Events reports Nov 2024 – Jul 2026; CoCoRaHS volunteer reports Oct 2021 – present. Radar hail sizes are estimates, not ground truth; hail at any single address can differ.