Aurora hail storm history
Arapahoe County·NOAA NCEI Storm Events Database·~75-day publication lag
Aurora, located primarily in Arapahoe County, experienced 29 hail events of 1 inch or larger over the past 10 years, with 13 of those reaching 1.5 inches or greater. The city's position on the Colorado Front Range makes it a frequent target for afternoon convective storms that track northeast from the Rocky Mountains, exposing residents to regular hail risk during the severe weather season.
Hail risk in Aurora peaks between May and July, with secondary activity in April and August. Most significant hail events occur in the afternoon window between 2 p.m. and 7 p.m. Mountain Time, when atmospheric instability is greatest. The largest recorded hailstone in Aurora measured 2 inches in diameter, consistent with the severe convective environment that develops along the Front Range during late spring and early summer.
Annual frequency — last 10 years
When hail hits — monthly pattern
Avg events per month · all years · NOAA data
All recorded hail events
Of 116 recorded events, 50 (43%) reached 1.5" or larger — the threshold for likely functional damage on standard asphalt shingles.
Report from mping.
Report from Mping.
The largest hailstone was measured with a calipers.
The spotter also measured a peak wind gust to 55 mph.
Event counts for Aurora are derived from NOAA reports and social media documentation, which may undercount smaller or isolated hail falls that do not result in property damage reports or public submissions. Aurora's position as a high-activity Front Range location and its size make it a frequent target for storm chasers and damage assessors, which has improved data collection reliability for significant events.
NOAA Storm Events Database source