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Aurora hail storm history

Arapahoe County·NOAA NCEI Storm Events Database·~75-day publication lag

Aurora sits in Arapahoe County on the Colorado Front Range, where afternoon convective storms tracking northeast from the Rocky Mountains create consistent hail risk throughout the spring and summer months. This geographic position places the city in a corridor where conditions regularly favor hail development, particularly during the peak season from May through July.

Events ≥1" (10yr)
104
Significant ≥1.5" (10yr)
50
Avg per year (10yr)
10.4
Largest recorded
2.75"
Most recent
Jul 7, 2025
Total records
116
NOAA storm history
events (10 yr)104
≥1.5" significant50
peak year (28)2023
Free inspection estimate

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Type of damage

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Hail risk in Aurora peaks during May, June, and July, when afternoon storms between 2 p.m. and 7 p.m. MT are most frequent. Secondary risk occurs in April and August. The Front Range terrain accelerates storm development and channeling, concentrating hail-producing cells along this corridor during the warm season.

Annual frequency — last 10 years

2025
1
2024
19
2023
28
2022
2
2021
13
2020
3
2019
17
2018
12
2017
2
2016
7
≥2.0" severe≥1.5" significant≥1.0" marginal

When hail hits — monthly pattern

Avg events per month · all years · NOAA data

Jan0
Feb0
Mar0
Apr0
May44
Jun39
Jul24
Aug9
Sep0
Oct0
Nov0
Dec0

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.

Jul 7, 20251"quarter
Jun 4, 20250.75"penny

Report from mping.

May 18, 20250.75"penny

Report from Mping.

The largest hailstone was measured with a calipers.

Aug 3, 20230.88"penny
Jun 22, 20231.75"golf ball
Jun 6, 20231"quarter
Jul 21, 20191"quarter
Jul 13, 20190.88"penny
Jul 4, 20190.88"penny
Jul 1, 20191"quarter
Jun 20, 20190.88"penny
Jun 8, 20191"quarter
Jun 1, 20191"quarter
May 26, 20191"quarter
Aug 7, 20181.5"ping pong ball
May 28, 20180.88"penny
Jul 17, 20161"quarter
May 26, 20161"quarter

The spotter also measured a peak wind gust to 55 mph.

Data source

NOAA National Centers for Environmental Information Storm Events Database. Publication lag is approximately 75 days — current-year events may be incomplete.

NOAA Storm Events Database ↗