◆ FLAGSTAFF, AZ HAIL HISTORY · COCONINO COUNTY
Flagstaff, AZ hail history & hail map
Flagstaff, Arizona has had 10 hail events in the past 5 years, with hail up to 1.75″ (Golf Ball). Most recent: Oct 21, 2026. Free hail map, storm dates and NWS/CoCoRaHS reports.
✓ Data compiled by a degreed meteorologist from NOAA & NWS sources
10Hail events in the past 5 years
1.75″Largest recorded hail · Golf Ball
1.75″Largest ground report (within 3 mi)
—Largest radar-estimated hail
Radar hail swaths (NOAA MRMS MESH) in the past 5 years over Flagstaff, shaded by hail size; blue dots are ground reports.
Recent hail storm dates in Flagstaff
| Date | Peak hail | Sources |
|---|---|---|
| Oct 21, 2026 | 1.75″ Golf Ball | 12 ground reports (max 1.75″) · Meteorologist-verified swath |
| Aug 11, 2026 | 0.70″ Small | 2 ground reports (max 0.70″) |
| Aug 10, 2026 | 0.50″ Small | 1 ground report (max 0.50″) |
| Sep 25, 2025 | 1.00″ Quarter | 1 ground report (max 1.00″) |
| Jun 4, 2025 | 0.25″ Small | 1 ground report (max 0.25″) |
| Oct 18, 2024 | 0.25″ Small | 1 ground report (max 0.25″) |
| Sep 21, 2024 | 0.50″ Small | 2 ground reports (max 0.50″) |
| Sep 7, 2024 | 0.70″ Small | 1 ground report (max 0.70″) |
| Jul 26, 2024 | 0.50″ Small | 1 ground report (max 0.50″) |
| Jul 15, 2024 | 0.88″ Nickel | 3 ground reports (max 0.88″) |
More Arizona hail history
All Arizona cities & hail days →
Events count days with NOAA MRMS radar hail over Flagstaff (35.210, -111.660) 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.