Colorado hail season runs from April through September, with the worst storms hitting the Front Range between May and July. The state consistently ranks number one in the nation for hail damage insurance claims, and 2026 is expected to be no different. Here is what every Colorado homeowner needs to know heading into this year's storm season.
When Does Hail Season Start in Colorado?
The technical answer is April through September. The real answer is that May, June, and July are when the most damaging storms occur. This three month window produces roughly 75 percent of all significant hail events on the Front Range.
The reason is simple physics. Late spring and early summer bring warm, moist air from the Gulf of Mexico colliding with the cold air that drops off the Rocky Mountains. This collision creates the severe thunderstorms that produce large hail. The Palmer Divide (the elevated ridge running from Castle Rock east through Parker and Elizabeth) acts as a trigger point, forcing air upward and generating some of the most intense supercell thunderstorms anywhere in the country.
Which Colorado Cities Get Hit the Hardest?
Not all Front Range cities face equal hail risk. Based on NOAA radar data going back a decade, the most hail-prone areas include Parker, Castle Rock, Aurora, Highlands Ranch, Centennial, Littleton, Lakewood, Arvada, and Westminster.
Parker and Castle Rock sit along the Palmer Divide and consistently see larger hail events than cities further north. In recent years, hail reports of 1.75 inches (golf ball size) or larger have been common in these communities.
Aurora and Centennial catch storms that form along the Divide and track northeast across the southern metro. Lakewood and Arvada see storms that develop over the foothills and push east through the central Denver metro.
The pattern is consistent year after year. If you live on or near the Palmer Divide, your hail risk is significantly higher than average.
What Size Hail Actually Damages a Roof?
This is one of the most common questions we hear at Gates Enterprises. The short answer is that hail around 1 inch in diameter (quarter size) can begin causing damage to standard asphalt shingles. At 1.5 inches (half dollar size), damage is likely. At 1.75 inches (golf ball size) or larger, damage is almost certain.
But size alone does not tell the full story. Wind speed during the storm matters. A 1 inch hailstone driven by 60 mph winds hits harder than a 1.5 inch stone in calm conditions. The angle of impact matters. Your roof pitch, the condition and age of your shingles, and whether you have impact resistant (Class 4) shingles all affect how much damage actually occurs.
The most important thing to understand is that hail damage is often invisible from the ground. Granule loss, bruising, and micro-fractures in shingle surfaces do not look dramatic, but they compromise your roof's ability to shed water. Left unaddressed, this hidden damage leads to leaks, wood rot, and premature roof failure.
How to Check Your Home's Hail History
Most homeowners have no idea how many hail events have passed near their property. That data exists. NOAA maintains a database of verified hail events recorded by radar and storm spotters going back decades.
Tools like HailScore (myhailscore.com) let you check your specific address against 4.5 million verified NOAA radar hail records. You get a risk score from 0 to 100 based on storm frequency, hail size, proximity, and recency. It is free and takes about 30 seconds.
Knowing your hail history is the first step in understanding whether your roof may have accumulated damage you cannot see.
What to Do Before Hail Season 2026
Get a professional inspection now. Not after the first storm. Now. Here is why that matters.
Insurance adjusters are swamped after major hail events. Every roofing company in Denver is booked solid for weeks after a significant storm. If you wait until after the hail hits to discover your roof already had problems, you are competing with thousands of other homeowners for attention. Pre season inspections are calm, thorough, and give you time to make decisions without pressure.
If your roof has existing damage from previous storms (and many Colorado roofs do), your insurance company still covers it. But you need to file that claim before the statute of limitations expires. In Colorado, you generally have one year from the date of loss to file a property damage claim. If a storm hit your area 10 months ago and you never had your roof inspected, you are running out of time.
Check Your Insurance Policy
Before storm season, review your homeowners insurance policy and know your deductible. Most Colorado policies have a standard deductible for wind and hail damage, not a percentage based deductible. Know the difference. Know your coverage limits. Know whether your policy covers replacement cost or actual cash value (ACV), because that distinction can mean tens of thousands of dollars on a full roof replacement.
If you have not upgraded to impact resistant (Class 4) shingles, ask your insurance agent about the premium discount. Most Colorado insurers offer a 15 to 35 percent discount on homeowners insurance for homes with Class 4 roofs. That discount can pay for the shingle upgrade within a few years.
Consider Impact Resistant Shingles
If you are replacing your roof before storm season (or if a storm forces a replacement), seriously consider upgrading to Class 4 impact resistant shingles. These shingles are tested against 2 inch steel ball drops and are rated to withstand the large hail that Colorado throws at us year after year.
Gates Enterprises installs impact resistant products from all four manufacturers we are certified with: GAF, Owens Corning, Malarkey, and CertainTeed. Each offers Class 4 options with different aesthetics, warranty terms, and price points Class 4 impact resistant shingles.
Frequently Asked Questions About Colorado Hail Season
When is Colorado hail season? Colorado hail season runs from April through September, with the most intense storms occurring between May and July.
What Colorado cities get the most hail? Parker, Castle Rock, Aurora, Highlands Ranch, Centennial, Lakewood, Arvada, and Westminster consistently see the most hail events based on NOAA radar data.
Does 1 inch hail damage a roof? Yes. Hail around 1 inch in diameter can damage standard asphalt shingles, especially on older roofs. The damage may not be visible from the ground.
How do I check if my area has been hit by hail? You can check your specific address against NOAA hail records using free tools like HailScore (myhailscore.com) to see how many verified hail events have occurred near your property.
Should I get my roof inspected before hail season? Absolutely. Pre season inspections catch existing damage, give you time to file claims before deadlines expire, and avoid the rush that follows every major storm.
Does insurance cover hail damage in Colorado? Yes. Most homeowners insurance policies in Colorado cover wind and hail damage. Colorado is a right to repair state, meaning insurance companies must pay for damage caused by covered events.
Schedule Your Free Pre Season Inspection
Gates Enterprises LLC is a quadruple manufacturer certified roofing contractor based in Lakewood, Colorado. We have completed over 7,200 roofs across the Front Range and maintain a 4.8 star rating with 300+ Google reviews.
Our free pre season roof inspections include a complete roof surface evaluation, photo documentation of any existing damage, gutter and flashing assessment, and a written report with our findings.
Call (720) 766-3377 or visit our contact page to schedule your inspection before storm season begins schedule your free inspection.