NOAA-verified historic hailstorm
June 10, 1969 Boulder County, CO Hailstorm
1 hail event recorded between 3:22 PM GMT-6 and 3:22 PM GMT-6. Peak hail size: 2.75".
Storm map
Each pin marks one NOAA-recorded hail event. Larger pins = larger hail.
Source: NOAA Storm Events Database (NCEI). Coordinates are NWS-reported event locations.
Was your property in this storm's path?
Enter your Boulder County address to see if hail from June 10, 1969 hit your specific street. Free, no signup, results in seconds.
Check My Address — FreeCities in Boulder County affected
See the full hail history for each affected area:
Hail size distribution
Cosmetic damage potential
Damages asphalt shingles
Severe roof damage
Total roof replacement
Individual NOAA event records
Every record carries a unique NOAA event ID adjusters can independently verify.
| Time (MT) | Hail size | Location | NOAA event ID |
|---|---|---|---|
| 3:22 PM GMT-6 | 2.75" | 40.000, -105.300 | 9987651 |
Frequently asked questions
What was the largest hail size on June 10, 1969 in Boulder County?+
NOAA's Storm Events Database recorded a peak hail size of 2.75" during the June 10, 1969 storm in Boulder County, Colorado. Hail of this size (2.75") routinely causes total roof replacement, broken windshields, and structural damage. Boulder County properties exposed to this storm should have received insurance-eligible damage.
How many hail events were recorded during this storm?+
1 individual hail observations were recorded in Boulder County on June 10, 1969, between approximately 3:22 PM GMT-6 and 3:22 PM GMT-6. Each NOAA record represents either a ground-verified observation by a National Weather Service spotter or a radar-derived measurement.
Can I file an insurance claim for hail damage from this storm?+
Most homeowner's insurance policies in Colorado cover hail damage under the "wind and hail" peril. Standard policies require claims to be filed within 1-2 years of the date of loss, though this varies by carrier. The June 10, 1969 date is the NOAA-recorded date of loss for properties in Boulder County. If your roof shows damage and your address was in the storm path, scheduling a free professional inspection is the standard first step.
How accurate is NOAA's hail size measurement?+
NOAA combines ground-verified reports (physically observed and measured hailstones reported by trained spotters, NWS offices, or law enforcement) with NEXRAD radar-derived size estimates. Ground reports are the gold standard. Radar estimates carry approximately a ±0.25 inch margin compared to ground measurements. Each event in NOAA's Storm Events Database has a unique event ID that adjusters can independently verify.
Was my property in the storm path?+
The storm map above shows the location of each individual hail event in this storm. Enter your address in the HailScore lookup tool for a property-level report that checks all four NOAA publishers (Storm Events, NEXRAD radar, MRMS, CoCoRaHS) against your exact coordinates.