Hail history for Lassen County, CA

Lassen County has 16 recorded hail events in the NOAA Storm Events Database — 10 of them 1″ or larger. The largest on record: 1.75″ (golf ball) on August 6, 2017.

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 16 since 1957

1″ or larger 10 NWS severe threshold

2″ or larger 0 hen egg class and up

Largest recorded 1.75″ golf ball · August 6, 2017

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 Lassen County

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

Most recent recorded events

Latest 8 of 16 recorded events · data through April 2026
Date	Size	Comparable to
July 31, 2022	1.25″	Half dollar
August 6, 2017	1.75″	Golf ball
July 7, 2015	1.0″	Quarter
July 17, 2014	1.0″	Quarter
June 10, 2013	0.88″	Nickel
April 23, 2012	0.88″	Nickel
July 23, 2003	0.75″	Penny
July 23, 2003	0.75″	Penny

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

From the storm reports

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

July 31, 2022 · 1.25″ (half dollar)

Trained weather spotter reported half dollar sized hail and very heavy rainfall.

August 6, 2017 · 1.75″ (golf ball)

Reports of hail between 1500��1530PST in downtown Susanville with the largest hail up to golf ball size occurring closer to 1530PST. Leaves removed from many trees and garden plants damaged.

July 18, 2002 · 1.75″ (golf ball)

1 3/4 inch hail

Events by decade

1950s	1960s	1970s	1980s	1990s	2000s	2010s	2020s
4	0	0	0	0	6	5	1

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 Lassen County

Has it ever hailed in Lassen County?

Yes — 16 hail events have been recorded for Lassen County, CA in the NOAA Storm Events Database since 1957, including 10 of 1″ (quarter size) or larger.

When did it last hail in Lassen County?

The most recent recorded hail event for Lassen County, CA is July 31, 2022, with 1.25″ (half dollar) 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 Lassen County?

1.75″ (golf ball), recorded on August 6, 2017. 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 California hail history

All 58 California 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.