Hail Storm Summary for Rock Springs, WY

Rock Springs, Wyoming has experienced 145 documented hail events within a 15-mile radius since 2015, according to NOAA NEXRAD radar data. The largest recorded hailstone measured 1.5 inches in diameter, and the average hail size across all events is 0.78 inches. The most recent significant event was detected on July 10, 2025. On average, the Rock Springs area sees approximately 15 hail events per year, making it an area with notable hail activity in Wyoming.

Based on NOAA radar data, properties in Rock Springs face a moderate risk of hail damage. Of the recorded events, 98 produced hail under 1 inch, 47 produced hail between 1 and 2 inches (sufficient to damage standard asphalt shingles), and 0 produced hail over 2 inches (capable of causing severe structural damage).

Homeowners in Rock Springs should inspect their roofs after any significant storm and consider a professional inspection annually during hail season (June through August). Even moderate hail can cause granule loss on shingles, which shortens roof lifespan over time. If you notice dented gutters, cracked siding, or dings on metal surfaces after a storm, your roof likely took similar impacts. Repair costs in the Rock Springs area typically range from $3,000–$12,000 depending on roof size and damage extent, and most homeowner's insurance policies cover hail damage.

SWEETWATER County, WY

Hail Damage Risk in Rock Springs, WY

10 years of verified NOAA hail data for Rock Springs and surrounding areas. 145 events recorded since 2015.

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Total Hail Events

145

Within 15 miles

Largest Hail

1.5"

Significant size

Most Recent Event

July 10, 2025

Last recorded hail

Avg Hail Size

0.78"

Across all events

Hail Storm Summary for Rock Springs, WY

Storm History

Total events145
Largest hailstone1.5"
Average size0.78"
Most recentJuly 10, 2025
Per year avg15

Data from 2015 to present, 15-mile radius

Risk Assessment

Moderate Risk
Under 1"98 (68%)
1" to 2"47 (32%)
Over 2"0 (0%)

Hail 1"+ can damage shingles. Over 2" causes severe structural damage.

What You Should Do

Inspect your roof after any significant storm and consider a professional inspection annually during hail season (June through August). Even moderate hail can cause granule loss that shortens roof lifespan. If you notice dented gutters or dings on metal surfaces, your roof likely took similar impacts. Repair costs typically range from $3,000–$12,000 depending on roof size and damage extent.

Most Wyoming insurance policies cover hail damage
File claims within 1-2 years of the storm date
Free inspections available from local contractors

Hail Events Near Rock Springs

97 events within 15 miles · Click for details

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Significant Hail Events

Events with hail 1" or larger near Rock Springs

DateHail SizeCountyDistance
Jul 4, 20251"14.9 mi
Jun 21, 20241"9.0 mi
Jun 21, 20241.25"11.3 mi
Jun 23, 20231.5"13.6 mi
Jun 23, 20231.25"10.4 mi
Jun 23, 20231.25"8.8 mi
Jun 23, 20231"9.7 mi
Jun 23, 20231"9.1 mi
May 26, 20231"8.5 mi
Jul 28, 20211"14.0 mi
Apr 26, 20191"8.6 mi
Aug 5, 20181.25"13.3 mi
Aug 5, 20181"10.5 mi
Aug 5, 20181.5"9.7 mi
Aug 5, 20181.25"8.0 mi
Aug 5, 20181"8.0 mi
Jul 11, 20181"8.1 mi
Jul 11, 20181.25"8.1 mi
Jul 21, 20171"10.9 mi
Jul 21, 20171"10.9 mi
Sep 4, 20161"14.7 mi
Sep 4, 20161"12.9 mi
Jun 12, 20161"11.3 mi
Jun 12, 20161.25"8.4 mi
Jun 12, 20161.25"5.5 mi

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Rock Springs Hail Damage FAQ

How many hail events has Rock Springs, WY experienced?+

Rock Springs, WY has recorded 145 hail events within a 15-mile radius since 2015, based on NOAA NEXRAD radar data. With over 145 events in a decade, Rock Springs is considered a high-risk hail area.

What is the average hail size in Rock Springs?+

The average hail size recorded near Rock Springs is 0.78 inches. The largest single event recorded reached 1.5 inches. Hail above 1 inch is capable of cracking shingles, and hail above 1.75 inches can cause severe structural damage requiring full roof replacement.

When is hail season in Wyoming?+

Hail season in Wyoming typically runs June through August. During these months, atmospheric conditions create powerful convective thunderstorms capable of producing large hail. Rock Springs residents should inspect their roofs after any storm and consider a professional inspection each spring.

Does insurance cover hail damage in Wyoming?+

Yes, standard homeowner's insurance policies in Wyoming 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, though this varies by insurer and state law. 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 do I check my roof for hail damage in Rock Springs?+

Start by looking for obvious signs from the ground: dented gutters, dings on metal vents, chipped paint, or broken skylight glass. On the roof itself, hail damage appears as dark circular bruises or "spatter" marks on asphalt shingles where granules have been knocked away. Because roof damage is often subtle, many Rock Springs homeowners miss it without a professional inspection. If HailScore shows events of 1 inch or larger near your property, scheduling a free inspection with a local contractor is strongly recommended.

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 (how many events), recency (recent storms score higher), hail size (larger hail = more damage potential), cumulative damage (repeated storms compound wear), and proximity (storms closer to your address weigh more). 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.

Should I get a roof inspection in Rock Springs?+

If your property is in Rock Springs and any nearby storms have produced hail of 1 inch or larger, a free professional roof inspection is highly recommended. Given that Rock Springs has recorded hail up to 1.5 inches, there is a real probability of roof damage that insurance may cover. Many roofing contractors in WY offer free inspections and can document damage for your insurance claim at no upfront cost.

How much does hail damage roof repair cost in Rock Springs?+

Hail damage repair costs in Rock Springs typically range from $3,000–$12,000 depending on roof size and damage extent. The final cost depends on roof size, pitch, material type (asphalt shingles vs. metal vs. tile), and the extent of damage. In most cases, if hail damage is confirmed, your homeowner's insurance will cover the cost of repair or replacement minus your deductible. Getting multiple contractor estimates before filing a claim is a smart approach.

What NOAA data does HailScore use for Rock Springs?+

HailScore uses data from the NOAA NEXRAD radar network (Next Generation Weather Radar), specifically the SWDI (Severe Weather Data Inventory) maintained by NCEI (National Centers for Environmental Information). For Rock Springs, we analyze all radar-detected hail events within a 15-mile radius from 2015 to 2025, totaling over 145 verified events. Each record includes the storm's timestamp, geographic coordinates, and measured hail diameter in inches.

How accurate is HailScore data for Rock Springs?+

HailScore data comes directly from NOAA's NEXRAD radar network, which is the same system used by the National Weather Service for official storm reporting. Radar detection has a small margin of error. Hail size estimates can vary by ±0.25 inch compared to ground truth measurements. We use the 15-mile radius to capture hail that may have affected your specific neighborhood even if the storm center was nearby. For the most precise assessment of your individual property, a physical roof inspection by a licensed contractor is always recommended.

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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 15-mile radius of Rock Springs city center.