HailHistory › Hail by county › California › Riverside County
California · county FIPS 06065
Hail history for Riverside County, CA
Riverside County has 31 recorded hail events in the NOAA Storm Events Database — 12 of them 1″ or larger and 1 at 2″ or larger. The largest on record: 2.75″ (baseball) on September 2, 1960.
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.
When it hails in Riverside County
Recorded events by month, 1950–present. The amber bar marks Riverside County's peak: September.
Most recent recorded events
| Date | Size | Comparable to |
|---|---|---|
| 0.5″ | Mothball | |
| 0.75″ | Penny | |
| 1.0″ | Quarter | |
| 0.75″ | Penny | |
| 1.0″ | Quarter | |
| 0.5″ | Mothball | |
| 1.0″ | Quarter | |
| 1.0″ | Quarter |
Looking for a specific storm? Use the did-it-hail date lookup for Riverside County.
From the storm reports
Narratives as filed with the NOAA Storm Events Database (public records; lightly trimmed for length).
· 0.5″ (mothball)
Corrects previous hail report from Beaumont. Report from mPING: Half-inch (0.50 in.).
· 1.0″ (quarter)
Public reported 1 inch size hail near I-215 in Perris. This is also where a weather station on Ellis avenue recorded 71 mph gust.
· 1.5″ (ping-pong ball)
A severe thunderstorm developed over the Fern Valley area and significantly interfered with an ongoing search and rescue operation involving two injured climbers at Suicide Rock. Several eyewitness accounts from climbers on Suicide and Tahquitz Rocks, as well as from people involved in the ongoing SAR mission, describe hailstones ranging in size from marbles to walnuts.
Events by decade
| 1950s | 1960s | 1970s | 1980s | 1990s | 2000s | 2010s | 2020s |
|---|---|---|---|---|---|---|---|
| 0 | 1 | 1 | 1 | 6 | 10 | 6 | 6 |
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 Riverside County
Has it ever hailed in Riverside County?
Yes — 31 hail events have been recorded for Riverside County, CA in the NOAA Storm Events Database since 1960, including 12 of 1″ (quarter size) or larger.
When did it last hail in Riverside County?
The most recent recorded hail event for Riverside County, CA is April 26, 2025, with 0.5″ (mothball) 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 Riverside County?
2.75″ (baseball), recorded on September 2, 1960. 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 California hail history
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.