Hail history for Umatilla County, OR

Umatilla County has 89 recorded hail events in the NOAA Storm Events Database — 49 of them 1″ or larger and 4 at 2″ or larger. The largest on record: 3.0″ (tea cup) on July 9, 1995.

Records 1950–present Data through April 2026 Peak month July

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 89 since 1969

1″ or larger 49 NWS severe threshold

2″ or larger 4 hen egg class and up

Largest recorded 3.0″ tea cup · July 9, 1995

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 Umatilla County

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

Most recent recorded events

Latest 8 of 89 recorded events · data through April 2026
Date	Size	Comparable to
August 5, 2024	0.88″	Nickel
July 2, 2022	1.0″	Quarter
July 2, 2022	1.5″	Ping-pong ball
May 15, 2022	1.5″	Ping-pong ball
May 6, 2022	1.25″	Half dollar
June 14, 2021	1.75″	Golf ball
May 30, 2020	2.0″	Hen egg
May 30, 2020	1.75″	Golf ball

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

From the storm reports

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

August 5, 2024 · 0.88″ (nickel)

A social media report indicated hail up to the size of 0.88 inches fell in Milton-Freewater between 0600 to 0620 PDT.

June 14, 2021 · 1.75″ (golf ball)

Social media report 15 miles ENE of Milton-Freewater, OR indicated a thunderstorm produced hail up to 1.75 inches just after 12 am PDT on June 15th.

July 20, 2012 · 1.75″ (golf ball)

Hail accompanied by 0.31 inches of rainfall.

Events by decade

1950s	1960s	1970s	1980s	1990s	2000s	2010s	2020s
0	1	0	4	15	38	20	11

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 Umatilla County

Has it ever hailed in Umatilla County?

Yes — 89 hail events have been recorded for Umatilla County, OR in the NOAA Storm Events Database since 1969, including 49 of 1″ (quarter size) or larger.

When did it last hail in Umatilla County?

The most recent recorded hail event for Umatilla County, OR is August 5, 2024, with 0.88″ (nickel) 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 Umatilla County?

3.0″ (tea cup), recorded on July 9, 1995. 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 Oregon hail history

All 36 Oregon 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.