Hail Damage in Jefferson County, CO
10 years of NOAA-linked hail data for Jefferson County and surrounding areas. 17,975 events recorded since 2015.
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Total Hail Events
17,975
Within 30 miles
Largest Hail
4"
Inspection is the normal next step
Most Recent Event
September 25, 2026
Last recorded hail
Avg Hail Size
0.91"
Across all events
Hail Events in Jefferson County
100 events within 30 miles · Click for details
Storm Frequency by Year
Number of hail events recorded each year in Jefferson County
Significant Hail Events
Events with hail 1" or larger in Jefferson County
| Date | Hail Size | Distance |
|---|---|---|
| Sep 25, 2026 | 1" | 15.2 mi |
| Sep 25, 2026 | 1" | 15.2 mi |
| Sep 25, 2026 | 1" | 11.3 mi |
| Sep 21, 2026 | 1" | 29.8 mi |
| Sep 21, 2026 | 1" | 20.2 mi |
| Sep 21, 2026 | 1" | 21.1 mi |
| Sep 21, 2026 | 1" | 19.7 mi |
| Sep 21, 2026 | 1" | 19.7 mi |
| Sep 7, 2026 | 1" | 23.8 mi |
| Sep 7, 2026 | 1" | 22.9 mi |
| Sep 7, 2026 | 1" | 22.7 mi |
| Sep 7, 2026 | 1" | 22.1 mi |
| Sep 7, 2026 | 1" | 21.9 mi |
| Sep 7, 2026 | 1" | 22.0 mi |
| Sep 7, 2026 | 1" | 22.8 mi |
| Sep 7, 2026 | 1.25" | 22.1 mi |
| Sep 7, 2026 | 1.25" | 22.0 mi |
| Sep 7, 2026 | 1.25" | 22.2 mi |
| Sep 7, 2026 | 1.25" | 21.9 mi |
| Sep 7, 2026 | 1" | 22.0 mi |
| Sep 7, 2026 | 1.25" | 22.0 mi |
| Sep 7, 2026 | 1.25" | 21.9 mi |
| Sep 7, 2026 | 1.5" | 21.4 mi |
| Sep 7, 2026 | 1.25" | 21.4 mi |
| Sep 7, 2026 | 1" | 21.8 mi |
Cities in Jefferson County
View detailed hail data for specific cities within the county
Lakewood
CO
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Evergreen
CO
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Conifer
CO
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Morrison
CO
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Arvada
CO
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Wheat Ridge
CO
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Edgewater
CO
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Golden
CO
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Check Your Exact Address
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Jefferson County Hail Damage FAQ
How many hail events has Jefferson County, CO experienced?+
Jefferson County, CO has recorded 17975 hail events within a 30-mile radius of the county center since 2015, based on NOAA NEXRAD radar data. With over 17975 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 0.91 inches. Hail of 1 inch or larger can bruise or crack asphalt shingles, and at 2 inches or larger a professional roof inspection is the normal next step after a storm. A recorded size is exposure, not a damage finding. Only a licensed roof inspection can determine whether a specific roof was damaged; coverage depends on the policy and carrier.
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?+
Many standard homeowner's policies in Colorado include hail under a "wind and hail" peril, but coverage and deductibles differ from one policy to the next. Claim deadlines and coverage rules vary by carrier and policy — confirm yours with your insurer or, in Colorado, the Colorado Division of Insurance (doi.colorado.gov). Document what you observe promptly. Even when nothing is obvious from the ground, a licensed roofer can check for impacts during an inspection — and that inspection, not a hail record, is what shows whether a roof was damaged.
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 a licensed inspection finds. Whether a confirmed repair is covered, and what deductible applies, depends on your policy and carrier. Getting more than one contractor estimate before deciding whether to file is a reasonable step.
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 0–25 is Low, 26–50 is Moderate, 51–75 is High, and 76–100 is Very High — the same sacred bands used on the live report.
Need a Jefferson County address's hail history as a document?
The Official Hail History Report is a one-off $9.95 PDF: the NOAA Storm Events and NEXRAD radar records within 1 mile of the address over 10 years, each with its government source ID. Documents exposure, not damage.
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 to present within a 30-mile radius of Jefferson County center.