Denver Metro NOAA Hail Report Explorer, 2016-2025
Publisher: Best Roof And Gutter
Canonical resource: https://bestroofandgutter.com/denver-hail-history
Underlying source: NOAA NCEI Storm Events Database
Source: https://www.ncei.noaa.gov/access/storm-events-database/
NOAA bulk files and field documentation: https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/

COVERAGE AND VERSION
Summary generated: 2026-07-22
Report dates covered: 2016-01-01 through 2025-12-31
This download republishes the stored historical site summary. It is not a fresh
NOAA extraction or a current-storm feed. NOAA may revise historical records.
2026 is excluded; no 2026 row should be interpreted as zero hail reports.

GEOGRAPHY AND COUNTING
Metro: report points within 35 miles of downtown Denver.
Local views: report points within 10 miles of each of 35 mapped place centers.
Place names include cities and neighborhoods, not jurisdiction boundaries.
The CSV contains one row per area and year: 360 rows covering 36 areas and 10 years.
Area radii overlap. Do not add local counts to obtain a metro or statewide total.
Several records can describe one weather system. Counts are reports, not distinct
storms, hail days, damaged roofs, probabilities, or complete storm tracks.
A zero means no records in this stored radius/year summary, not proof of no hail.

FIELDS
area_key: stable site label for the metro or local view
area: display name
radius_miles: radius used in the original site summary
year: calendar year of the grouped reports
report_count: number of report records in that radius/year summary
summary_generated: date of the underlying site summary, not the download date
coverage_start / coverage_end: bounds of the historical summary
source_url: underlying source agency
methodology_url: citation and limitations on the canonical page

VERIFICATION LIMITS
This summary download does not contain individual event IDs, point coordinates,
the original center coordinates, or source-file revision identifiers. It cannot
by itself reproduce the geographic extraction or verify an individual event.
For event-level verification, use NOAA's database or bulk detail/location files
and preserve the event ID, source version, date, magnitude and coordinates.
An independent extraction must document its chosen centers and distance method;
its counts may differ from this stored summary.

PROPERTY DECISIONS
Nearby reports do not establish parcel-level weather, damage, cause, or insurance
coverage. Preserve safe property observations separately from weather records.

SUGGESTED CITATION
Best Roof And Gutter, Denver Metro NOAA Hail Report Explorer, 2016-2025.
Site summary generated July 22, 2026, based on NOAA NCEI Storm Events records.
https://bestroofandgutter.com/denver-hail-history (include your access date).
Attribute the underlying reports to NOAA and the radius summary to Best Roof And
Gutter. This is an independent resource, not a NOAA endorsement.