Colorado Hail Forecast 2026: When Hail Season Starts and What to Expect

April is here, which means Colorado hail season is officially underway. For Front Range homeowners, the window between now and late July is the highest-risk period of the year — and being unprepared costs thousands.

Here is what the 2026 hail season looks like, when the peak activity hits, and what you should do right now.

When Does Hail Season Start in Colorado?

Colorado hail season begins in April and runs through August or early September. The most active months are May, June, and July, when atmospheric conditions are most favorable for severe hailstorms.

The timing is driven by two colliding air masses:

Warm, moist air from the Gulf of Mexico pushing north into the Great Plains

Cold, dry air descending from the Rocky Mountains

When these meet along the Front Range, the result is powerful convective thunderstorms that can produce hail ranging from pea-sized to larger than a baseball. Colorado regularly sees hail above 1.75 inches (golf ball) multiple times per season, and events producing hail above 2.5 inches occur most years somewhere along the Front Range.

Colorado Hail Season 2026 Outlook

Based on the seasonal pattern and atmospheric indicators heading into spring 2026:

April: Early-season storms are possible, especially along the Palmer Divide (Castle Rock to Limon corridor). These tend to be less organized but can still produce 1-inch hail.

May: Activity accelerates. The Denver metro, Boulder, and Fort Collins are all at elevated risk during this month. May is historically when the first major Front Range hail event of the season occurs.

June: Peak hail month for most of Colorado. The combination of daytime heating and strong jet stream positioning creates conditions for multiple severe events. Denver, Aurora, Lakewood, and Thornton see their highest frequency of 1.5-inch+ hail in June.

July: Continues active through mid-month. The monsoon moisture from the south begins arriving in late July, which often suppresses the most severe convective activity but brings its own storm patterns.

August: Activity typically decreases but does not stop. Late-season storms can still produce significant hail, particularly in southern Colorado and the Palmer Divide.

Which Colorado Cities Are at Highest Risk in 2026?

The following Front Range cities consistently see the most frequent and severe hail activity. If you live in or near any of these areas, your roof should be inspected before May:

Denver

The most populated city in the state also sits in one of the most hail-prone corridors in North America. Denver has recorded thousands of hail events since 2015, with multiple events producing hail above 1.75 inches annually. Eastern neighborhoods along the storm track toward Aurora see the highest frequency.

Aurora

Aurora's geographic position in Arapahoe County puts it directly in the path of storms tracking northeast off the mountains. Multiple neighborhoods in Aurora have experienced repeated hail events in consecutive seasons, compounding roof wear even when individual storms seem moderate.

Lakewood and Jefferson County

Jefferson County sees some of the highest hail activity in the state due to its position just east of the foothills. Storms that form or intensify along the mountains frequently drop hail on Lakewood, Edgewater, and Wheat Ridge before tracking northeast.

Thornton and Westminster

Adams County consistently ranks among the top hail counties in Colorado. Storms that form north of Denver track through Thornton and Westminster, often at their most intense phase.

Colorado Springs

El Paso County sits at the southern end of the hail corridor. Colorado Springs has experienced multiple catastrophic hail events in recent years. The city's higher elevation compared to Denver means slightly later storm timing but no less intensity.

Greeley

Weld County leads the state in total annual hail reports many years. Greeley and the surrounding agricultural areas experience high storm frequency, though the lower population density means less insured damage.

Fort Collins and Loveland

Larimer County sees active hail in late spring and summer. Fort Collins and Loveland are particularly vulnerable to supercell thunderstorms that form along the foothills and move east.

Signs That Your Roof Has Existing Hail Damage

Before the 2026 season hits, knowing whether your roof already has damage from previous years matters — especially if you have not had an inspection in the past two or three years. Colorado had significant hail events in 2022, 2023, and 2024. If your roof has been hit but never inspected, existing damage can compound quickly in another active season.

Look for these signs from the ground (never climb on a damaged or wet roof):

Gutters: Denting, crushing, or cracks in aluminum gutters is a strong indicator of hail impact. If your gutters are damaged, your roof almost certainly is too.

HVAC units: Air conditioning condensers take direct hits from hail. Fins that are bent or crushed from the top down (not the sides) indicate hail, not accident damage.

Window screens: Punctured or torn screens are a reliable indicator of hail that was large enough to cause roof damage.

Siding: Circular dents or cracks in vinyl, aluminum, or wood siding that are uniformly spaced are a classic hail signature.

Roof (visible from ground): If you can see shingles from the ground, look for dark circular areas where granules have been knocked away, exposing the black asphalt substrate underneath.

If you see any of these signs, schedule a free inspection with a licensed Colorado roofing contractor before June. Do not wait until after the next storm to find out how much damage you already have.

Check Your Address Before Hail Season

HailScore shows you every documented hail event within 15 miles of your specific address, using 10 years of data from NOAA's NEXRAD radar network. You can see the dates, hail sizes, storm frequency, and your property's overall risk score — free, with no signup.

If your score is above 60 and you have not had an inspection in the past two years, there is a meaningful probability of existing damage. If your score is above 80, an inspection is strongly recommended before May.

Check your address now, while there is still time to act before the peak of the 2026 hail season.

Is It Going to Hail Today?

For active forecast and storm warnings, check:

weather.gov — National Weather Service official forecasts

NWS Boulder (Denver metro): boulder.weather.gov

NWS Pueblo (Southern Colorado): pueblo.weather.gov

Colorado Emergency Management: coem.colorado.gov

For historical hail data at your specific address — what has already hit your roof over the past decade — that is what HailScore is built for.

What to Do If Hail Hits in 2026

When a storm hits your area this season:

Check HailScore — confirm whether documented hail occurred near your address and how large it was

Walk your property — photograph gutters, HVAC, siding, and any exterior soft metals before anything is repaired

Call a licensed Colorado roofing contractor — get a free inspection within a few days of the storm while damage is fresh

File your claim promptly — Colorado gives you two years (C.R.S. § 10-4-110.8), but the sooner you file, the cleaner the documentation

Know your deductible — many Colorado policies have 1–2% wind and hail deductibles tied to your home's insured value, not a flat dollar amount

Hail season 2026 is already here. The storm that hits your block in June will not care whether you were ready. Check your address, know your history, and get inspected before the season peaks.