Hail history for Prowers County, CO

Prowers County has 366 recorded hail events in the NOAA Storm Events Database — 264 of them 1″ or larger and 60 at 2″ or larger. The largest on record: 3.75″ (softball) on May 16, 1999.

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 366 since 1958

1″ or larger 264 NWS severe threshold

2″ or larger 60 hen egg class and up

Largest recorded 3.75″ softball · May 16, 1999

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 Prowers County

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

Most recent recorded events

Latest 8 of 366 recorded events · data through April 2026
Date	Size	Comparable to
July 19, 2024	1.0″	Quarter
June 14, 2024	1.0″	Quarter
May 29, 2024	1.0″	Quarter
May 29, 2024	2.0″	Hen egg
May 29, 2024	2.25″	Tennis ball
May 29, 2024	1.75″	Golf ball
May 29, 2024	1.25″	Half dollar
May 29, 2024	1.75″	Golf ball

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

From the storm reports

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

July 19, 2024 · 1.0″ (quarter)

Hail measured to 1 inch fell north-northeast of Bristol.

May 21, 2020 · 2.75″ (baseball)

A few hailstones up to baseball sized.

May 29, 2001 · 3.0″ (tea cup)

The thunderstorms that spawned seven tornadoes west of Lamar, brought giant hail between golf ball and baseball size to Lamar.

Events by decade

1950s	1960s	1970s	1980s	1990s	2000s	2010s	2020s
3	10	8	7	83	105	91	59

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 Prowers County

Has it ever hailed in Prowers County?

Yes — 366 hail events have been recorded for Prowers County, CO in the NOAA Storm Events Database since 1958, including 264 of 1″ (quarter size) or larger.

When did it last hail in Prowers County?

The most recent recorded hail event for Prowers County, CO is July 19, 2024, 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 Prowers County?

3.75″ (softball), recorded on May 16, 1999. 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.