Hail history for Multnomah County, OR

Multnomah County has 6 recorded hail events in the NOAA Storm Events Database — 1 of them 1″ or larger. The largest on record: 1.5″ (ping-pong ball) on July 31, 1991.

Records 1950–present Data through April 2026

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 6 since 1991

1″ or larger 1 NWS severe threshold

2″ or larger 0 hen egg class and up

Largest recorded 1.5″ ping-pong ball · July 31, 1991

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.

Most recent recorded events

Latest 6 of 6 recorded events · data through April 2026
Date	Size	Comparable to
May 24, 2008	0.75″	Penny
September 28, 2007	0.5″	Mothball
May 2, 2007	0.5″	Mothball
April 28, 2001	0.75″	Penny
August 4, 1999	0.75″	Penny
July 31, 1991	1.5″	Ping-pong ball

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

From the storm reports

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

May 24, 2008 · 0.75″ (penny)

This was reported by a Multnomah Falls employee. The hail was reported to be 2 to 3 inches deep.

August 4, 1999 · 0.75″ (penny)

A reporter from the Hillsboro Argus newspaper reported 3/4 inch hail near 33rd Ave and Columbia Boulevard in Portland. This is unusually large hail for the Portland area away from mountains or foothills.

Events by decade

1950s	1960s	1970s	1980s	1990s	2000s	2010s	2020s
0	0	0	0	2	4	0	0

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 Multnomah County

Has it ever hailed in Multnomah County?

Yes — 6 hail events have been recorded for Multnomah County, OR in the NOAA Storm Events Database since 1991, including 1 of 1″ (quarter size) or larger.

When did it last hail in Multnomah County?

The most recent recorded hail event for Multnomah County, OR is May 24, 2008, with 0.75″ (penny) 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 Multnomah County?

1.5″ (ping-pong ball), recorded on July 31, 1991. Hail that size meets or exceeds the National Weather Service severe threshold. 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.