The Storm Record · Colorado Edition
Colorado Hail Statistics
The annual Colorado Hail Report · 2026 edition — a living dataset, updated through the season.
Live 2026 hail activity from MRMS radar, plus the full NOAA Storm Events record going back to 1955. Sourced, specific, and updated within hours of each storm — not estimates.
Data current as of September 30, 2026 · Sources: NOAA MRMS · NOAA Storm Events Database
The 2026 Season So Far
As of September 30, 2026, NOAA MRMS radar has recorded 91 separate hail days across Colorado in the 2026 season, with the largest stones reaching 5.00″ (radar-estimated). August has been the most active month so far. — Source: NOAA MRMS, via HailScore.
22 dates are not counted as separate hail days because every ≥1″ cell on them had already been reported the previous day (MRMS publishes a trailing 24-hour maximum): 2026-05-18, 2026-05-24, 2026-05-26, 2026-05-31, 2026-06-10, 2026-06-14, 2026-06-28, 2026-07-06, 2026-07-12, 2026-07-17, 2026-07-19, 2026-07-25, 2026-08-02, 2026-08-07, 2026-08-11, 2026-08-24, 2026-08-28, 2026-09-01, 2026-09-11, 2026-09-16, 2026-09-26, 2026-09-30. A date where any cell is new stays — two storms on consecutive days are two hail days.
4 dates are not counted as hail days because every ≥1″ reading on them stood alone — fewer than 3 nearby cells reported 1″-or-larger hail alongside, so the surrounding field does not back them up: 2026-05-20 (1.84″), 2026-05-25 (1.04″), 2026-07-18 (1.02″), 2026-08-08 (8.85″).
3 radar grid cells are left out of the season and monthly highs because fewer than 3 nearby cells reported 1″-or-larger hail alongside them on the same date. Largest left out: 8.85″ on 2026-08-09. These sit on dates that DO count as hail days; dates dropped in full are listed above.
2026 hail days by month
These numbers come from live MRMS radar and update within hours of a storm — a window no competitor publishes. Check your exact address →
Notable 2026 Storms
The most significant Front Range hail days this season, radar-estimated from NOAA MRMS. Each opens that storm's full record — map, radar cells, and a machine-readable data file.
The Historical Record
From NOAA's Storm Events Database — official, human-confirmed hail reports (distinct from the millions of automated radar detections that power your address-level score).
When Colorado Hail Strikes
Colorado hail events by month, 2015–present. The season runs April–September and peaks hard in June.
Colorado Hail by Year
Recorded hail events per year since 2015, with the largest stone each season.
Worst-Hit Counties
Most recorded hail events since 2015.
Biggest Hailstones on Record
Largest stones in NOAA's Colorado history.
Hail exposure on this scale is also why impact-resistant roofing comes up at renewal. Whether the upgrade pays for itself depends on the discount your own carrier quotes, which you can work out with our Colorado Class 4 roof discount calculator.
For press & researchers
Cite This Report
The Colorado Hail Report is free to cite. These figures measure hail exposure recorded in NOAA data — not confirmed property damage — and update within hours of each storm.
Ready-to-use stats
- Colorado has recorded 91 hail days so far in 2026, with the largest radar reading at 5.00″ (MRMS radar). — HailScore
- NOAA's Storm Events Database documents 15,489 Colorado hail events since 1955; the largest on record measured 5.25″. — HailScore
- El Paso County leads Colorado with 809 recorded hail events since 2015. — HailScore
- Colorado's hail season peaks in June, which sees more recorded hail than any other month. — HailScore
How to cite this page
Short attribution: “HailScore (myhailscore.com), based on NOAA NEXRAD radar and NOAA hail data.”
Sources & fact-check trail
Built from live NOAA MRMS radar and the NOAA Storm Events Database. Full methodology and data sources: /methodology.
Press & data requests: hello@myhailscore.com
Colorado Hail — Frequently Asked
How many hailstorms has Colorado had in 2026?+
As of September 30, 2026, MRMS radar has detected 91 separate hail days across Colorado in the 2026 season, with the largest radar reading at 5.00 inches. A date counts once: MRMS publishes a trailing 24-hour maximum, so dates whose readings only repeated the previous day are not counted again. A date also has to carry at least one ≥1-inch reading that nearby ≥1-inch readings back up (4 such dates this season). This count updates within a few hours of each storm.
When is Colorado's hail season?+
Colorado's hail season runs April through September. June is historically the most active month — NOAA's Storm Events Database records more Colorado hail events in June than any other month.
What is the biggest hailstone ever recorded in Colorado?+
The largest hail in NOAA's Colorado record measured 5.25 inches in diameter — larger than a baseball. Colorado regularly produces stones over 2 inches every season along the Front Range and Eastern Plains.
Which Colorado counties get the most hail?+
Since 2015, El Paso County leads with 809 recorded hail events, followed by Weld and Yuma County. The Front Range and Eastern Plains absorb the majority of Colorado's damaging hail.
Check Your Own Colorado Address
Statewide numbers are one thing — what hit your roof is another. Pull the full radar history for your address free, or browse by city.
Get My Free HailScore →Hail history by Colorado city