HailHistoryHail by countyOklahoma › Cotton County

Oklahoma · county FIPS 40033

Hail history for Cotton County, OK

Cotton County has 300 recorded hail events in the NOAA Storm Events Database — 188 of them 1″ or larger and 25 at 2″ or larger. The largest on record: 4.5″ (grapefruit) on March 22, 1984.

Records 1950–present Data through April 2026 Peak month April
Core sample · every recorded event, 1955–2026
1950s 1960s 1970s 1980s 1990s 2000s 2010s 2020s 1955 through 2026 largest · 4.5″ grapefruit March 22, 1984

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 300 since 1959
1″ or larger 188 NWS severe threshold
2″ or larger 25 hen egg class and up
Largest recorded 4.5 grapefruit · March 22, 1984
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 Cotton County

Jan 6 Feb 33 Mar 87 Apr 77 May 45 Jun 20 Jul 8 Aug 6 Sep 9 Oct 8 Nov 1 Dec

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

Most recent recorded events

Latest 8 of 300 recorded events · data through April 2026
DateSizeComparable to
1.0″ Quarter
1.0″ Quarter
0.75″ Penny
1.25″ Half dollar
1.25″ Half dollar
1.25″ Half dollar
1.5″ Ping-pong ball
2.0″ Hen egg

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

From the storm reports

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

· 0.75″ (penny)

The report was relayed through mPING.

· 3.5″ (softball)

An image showing a ruler measurement was relayed by emergency management. The event time is estimated from radar observations.

· 2.75″ (baseball)

The hail was reported near I-44. Damage was reported to numerous cars in the parking lot of the casino.

Events by decade

1950s1960s1970s1980s1990s2000s2010s2020s
115738107673827

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 Cotton County

Has it ever hailed in Cotton County?

Yes — 300 hail events have been recorded for Cotton County, OK in the NOAA Storm Events Database since 1959, including 188 of 1″ (quarter size) or larger.

When did it last hail in Cotton County?

The most recent recorded hail event for Cotton County, OK is April 26, 2026, 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 Cotton County?

4.5″ (grapefruit), recorded on March 22, 1984. 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 Oklahoma hail history

All 77 Oklahoma 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.