Brighton hail storm history
Adams County·NOAA NCEI Storm Events Database·~75-day publication lag
Brighton, located in Adams County, has experienced 7 documented hail events of 1 inch or larger over the past 10 years, with an average of 0.7 events annually. The city sits on the Front Range where afternoon convective storms tracking northeast from the Rocky Mountains create conditions favorable for hail development. The largest recorded hailstone in Brighton measured 1.5 inches in diameter.
Hail risk in Brighton peaks during May, June, and July, with secondary activity in April and August. Most significant hail events occur between 2 p.m. and 7 p.m. Mountain Time, when afternoon convective storms develop along the Front Range and move northeast across Adams County. Only 1 event of 1.5 inches or larger occurred during the 10-year period, indicating that while hail is a regular seasonal threat, severe hail events remain less frequent.
Annual frequency — last 10 years
When hail hits — monthly pattern
Avg events per month · all years · NOAA data
All recorded hail events
Of 58 recorded events, 12 (21%) reached 1.5" or larger — the threshold for likely functional damage on standard asphalt shingles.
Report received from mPING.
Report of penny to quarter size hail on the southwest side of Keenesburg.
Report from mping.
Brighton's hail history is drawn from NOAA Storm Data records for Adams County, which document 8 total hail events. Because hail reporting depends on ground observations and property damage reports, smaller hailstones that do not cause measurable damage may not appear in official records. The 10-year dataset provides a reliable baseline for frequency and seasonal timing but should not be interpreted as a complete count of all hail occurrence.
NOAA Storm Events Database source