Parker hail storm history
Douglas County·NOAA NCEI Storm Events Database·~75-day publication lag
Parker, located in Douglas County, has experienced 2 hail events of 1 inch or larger over the past 10 years, with the largest recorded hailstone measuring 1.75 inches in diameter. The city sits on the Front Range where afternoon convective storms tracking northeast from the Rocky Mountains create conditions favorable for hail development. At a long-term average of 0.2 events per year, Parker has a relatively low hail frequency compared to other Colorado Front Range communities.
Hail risk in Parker peaks during May, June, and July, with secondary risk periods in April and August. Most significant hail events in this area occur between 2pm and 7pm Mountain Time, when afternoon heating destabilizes the atmosphere and triggers thunderstorm development. The Front Range geography channels moisture-laden air masses that collide with mountain uplift, creating the atmospheric conditions necessary for large hailstone formation during the late spring and early summer months.
Annual frequency — last 10 years
When hail hits — monthly pattern
Avg events per month · all years · NOAA data
All recorded hail events
Of 78 recorded events, 17 (22%) reached 1.5" or larger — the threshold for likely functional damage on standard asphalt shingles.
The report was from mPING.
Report from mping.
Large hail shattered sky lights.
Hail event counts for Parker are based on NOAA Storm Data records, which document severe weather reports from trained spotters and emergency management officials. Because Parker is a smaller community within Douglas County, some smaller hail events may not be formally reported to NOAA, meaning the actual frequency of hail occurrence could be somewhat higher than records indicate.
NOAA Storm Events Database source