Hail history for Denver County, CO

Denver County has 337 recorded hail events in the NOAA Storm Events Database — 246 of them 1″ or larger and 16 at 2″ or larger. The largest on record: 4.5″ (grapefruit) on August 5, 1983.

Records 1950–present Data through April 2026 Peak month June

Core sample · every recorded event, 1955–2026

Mark size = measured hail diameter; slivers are events with no recorded size. Amber ≥2″, red ≥2.75″ (baseball class). Denser recent decades partly reflect better reporting, not only more storms.

Recorded events 337 since 1955

1″ or larger 246 NWS severe threshold

2″ or larger 16 hen egg class and up

Largest recorded 4.5″ grapefruit · August 5, 1983

Read the record honestly: Storm Events contains what was reported to the National Weather Service. Sparse or rural counties under-report, and coverage improved sharply after the mid-1990s — a quiet-looking stretch is not proof nothing fell.

When it hails in Denver County

Recorded events by month, 1950–present. The amber bar marks Denver County's peak: June.

Most recent recorded events

Latest 8 of 337 recorded events · data through April 2026
Date	Size	Comparable to
July 6, 2025	1.0″	Quarter
May 30, 2024	1.25″	Half dollar
May 30, 2024	1.75″	Golf ball
May 30, 2024	1.25″	Half dollar
May 30, 2024	1.75″	Golf ball
May 30, 2024	1.0″	Quarter
May 30, 2024	1.0″	Quarter
May 30, 2024	2.0″	Hen egg

Looking for a specific storm? Use the did-it-hail date lookup for Denver County.

From the storm reports

Narratives as filed with the NOAA Storm Events Database (public records; lightly trimmed for length).

May 30, 2024 · 2.75″ (baseball)

This includes Northfield and Central Park.

May 30, 2024 · 2.5″ (tennis ball)

The report was taken near 53rd avenue and Central Park boulevard.

May 30, 2024 · 1.0″ (quarter)

The report was via mping.

Events by decade

1950s	1960s	1970s	1980s	1990s	2000s	2010s	2020s
9	14	14	41	35	57	86	81

The climb across decades is largely a reporting story: spotter networks, radar, and digital filing pulled far more storms into the record after the 1990s.

Questions about hail in Denver County

Has it ever hailed in Denver County?

Yes — 337 hail events have been recorded for Denver County, CO in the NOAA Storm Events Database since 1955, including 246 of 1″ (quarter size) or larger.

When did it last hail in Denver County?

The most recent recorded hail event for Denver County, CO is July 6, 2025, with 1.0″ (quarter) hail. The database is currently updated through April 2026, so a storm from the last few weeks may not appear yet. To check a specific day, use the did-it-hail date lookup.

What is the largest hail ever recorded in Denver County?

4.5″ (grapefruit), recorded on August 5, 1983. Hail that size is destructive-class and typically damages roofs, vehicles, and siding. See how big that really is on the actual-size hail chart.

Does a recorded hail event mean my roof was damaged?

No. This page reports storm records, not damage. Hail size and damage vary block by block within a county, and only an inspection can establish what happened to a specific roof. If you suspect damage, talk to your insurer or a licensed roofer — they can pull the same NOAA records for your claim.

More Colorado hail history

All 64 Colorado counties, ranked by recorded hail →

Source: NOAA/NCEI Storm Events Database, public domain, updated monthly by NCEI — this site's copy runs through April 2026. HailHistory reports records; it does not give insurance advice or assess damage.