Colorado · FIPS 08059

Hail Damage in Jefferson County, CO

10 years of verified NOAA hail data for Jefferson County and surrounding areas. 18,778 events recorded since 2015.

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Total Hail Events

18,778

Within 30 miles

Largest Hail

4"

Severe — likely roof damage

Most Recent Event

October 27, 2025

Last recorded hail

Avg Hail Size

1.05"

Across all events

Hail Events in Jefferson County

100 events within 30 miles · Click for details

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Storm Frequency by Year

Number of hail events recorded each year in Jefferson County

2025
1,290
2024
565
2023
2,657
2022
666
2021
798
2020
736
2019
3,138
2018
2,848
2017
948
2016
2,606
2015
2,526

Significant Hail Events

Events with hail 1" or larger in Jefferson County

DateHail SizeDistance
Oct 27, 20251"27.9 mi
Oct 27, 20251"23.3 mi
Oct 27, 20251"21.6 mi
Sep 18, 20251"12.5 mi
Aug 23, 20251.5"17.7 mi
Aug 23, 20251"14.4 mi
Aug 23, 20251.25"15.3 mi
Aug 22, 20251"8.0 mi
Aug 18, 20251.5"17.6 mi
Aug 18, 20251.25"17.9 mi
Aug 18, 20251.25"17.6 mi
Aug 18, 20251.25"16.8 mi
Aug 18, 20251.25"17.1 mi
Aug 18, 20251"16.8 mi
Aug 18, 20251"17.1 mi
Aug 18, 20251"29.7 mi
Aug 10, 20251.5"29.8 mi
Aug 10, 20251"28.7 mi
Aug 10, 20251"29.8 mi
Aug 10, 20251"28.7 mi
Aug 10, 20251"8.5 mi
Aug 10, 20251"9.9 mi
Aug 10, 20251.25"11.1 mi
Aug 10, 20251"9.6 mi
Aug 10, 20251.25"10.2 mi

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Jefferson County Hail Damage FAQ

How many hail events has Jefferson County, CO experienced?+

Jefferson County, CO has recorded 18778 hail events within a 30-mile radius of the county center since 2015, based on NOAA NEXRAD radar data. With over 18778 events in a decade, Jefferson County is considered a high-risk hail area.

What is the largest hail size recorded in Jefferson County?+

The largest hail event recorded near Jefferson County reached 4 inches. The average hail size across all events is 1.05 inches. Hail above 1 inch can crack shingles, and hail above 1.75 inches can cause severe structural damage requiring full roof replacement.

When is hail season in Colorado?+

Hail season in Colorado typically runs April through August, with peak activity in May and June. During these months, atmospheric conditions create powerful thunderstorms capable of producing large hail. Jefferson County residents should inspect their roofs after any storm and consider a professional inspection each spring.

Does insurance cover hail damage in Jefferson County?+

Yes, standard homeowner's insurance policies in Colorado typically cover hail damage as part of the "wind and hail" peril. Most policies require you to file a claim within 1–2 years of the storm date. It's important to document damage promptly — even if damage isn't visually obvious from the ground, a licensed roofer can identify hail impacts during a free inspection.

How much does hail damage roof repair cost in Jefferson County?+

Hail damage repair costs in Jefferson County typically range from $8,000–$25,000+ for full roof replacement. The final cost depends on roof size, pitch, material type, and the extent of damage. In most cases, if hail damage is confirmed, your homeowner's insurance will cover the cost minus your deductible.

What is a HailScore and how is it calculated?+

A HailScore is a 0–100 risk index that measures historical hail activity near a specific property. The score is calculated from five factors derived from NOAA NEXRAD radar data: storm frequency, recency, hail size, cumulative damage, and proximity. A score of 0–30 is low risk, 31–60 is moderate, 61–80 is significant, and 81–100 indicates a high-impact hail history.

Weather data provided by NOAA National Weather Service and Storm Prediction Center. This product is not affiliated with or endorsed by the U.S. Government. Data covers 2015–2025 within a 30-mile radius of Jefferson County center.