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Hail in Trinity County, California
21 hail events in the NCEI Storm Events record, 1950 to 2026. Event types counted: Hail.
NCEI notes that Storm Data is compiled from a variety of sources including the National Weather Service, other federal, state and local agencies, the media and the public; that property and crop damage figures are estimates; and that some events are recorded by NWS forecast zone rather than by county. FEMA notes that NFIP claim records are redacted and aggregated to protect the privacy of policyholders. Storm records through 30 Jun 2026.
NCEI records 21 hail events in Trinity County, California, between 1950 and 2026, spread over 11 years.
July is the busiest month, with 8 of the recorded events. The last 20 years account for 8 events against 13 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 2.2% of the 936 hail events recorded in California; its 0.7 per 100 square miles compares with 0.6 statewide.
0 of the hail reports with a recorded size were golf-ball size (1.75 inches) or larger; the largest recorded stone was 1.50 inches (ping-pong ball size).
Compared with California
| Measure | Trinity County | California | US |
|---|---|---|---|
| Hail events since 1950 | 21 | 936 | 424,356 |
| Per 100 square miles | 0.7 | 0.6 | 12.0 |
| Per 10,000 residents | 13.1 | 0.2 | 12.8 |
| Deaths recorded | 0 | 2 | 29 |
| Busiest month | July | March | May |
By year
Seasonality
0Feb
0Mar
1Apr
0May
1Jun
2Jul
8Aug
7Sep
2Oct
0Nov
0Dec
0
Magnitude distribution
NWS hail-size descriptors
- under 1 in
- pea to quarter
- 1–1.74 in
- quarter to golf ball
- 1.75–2.74 in
- golf ball to baseball
- 2.75–3.99 in
- baseball to softball
- 4 in and larger
- softball and larger
Hail size in inches as recorded by NCEI; events without a size are not binned.
Recorded events
All 21 events, most recent first. Magnitude is hail size, tornado rating or wind speed as recorded.
| Date | Event type | Magnitude | Property damage | Crop damage | Deaths | Injuries | Geography |
|---|---|---|---|---|---|---|---|
| 30 Jul 2025 | Hail | 1.00 in | — | — | — | — | County |
| 22 Jul 2020 | Hail | 1.00 in | — | — | — | — | County |
| 10 Aug 2017 | Hail | 1.00 in | — | — | — | — | County |
| 9 Aug 2017 | Hail | 1.00 in | — | — | — | — | County |
| 6 Aug 2017 | Hail | 1.00 in | — | — | — | — | County |
| 6 Aug 2017 | Hail | 1.00 in | — | — | — | — | County |
| 25 Jul 2017 | Hail | 0.88 in | — | — | — | — | County |
| 22 Aug 2013 | Hail | 1.50 in | — | — | — | — | County |
| 4 Sep 2003 | Hail | 0.75 in | — | — | — | — | County |
| 29 May 2003 | Hail | 1.00 in | — | — | — | — | County |
| 11 Jul 2001 | Hail | 0.75 in | — | — | — | — | County |
| 11 Jul 2001 | Hail | 1.00 in | — | — | — | — | County |
| 21 Mar 2001 | Hail | 1.00 in | — | — | — | — | County |
| 6 Aug 1999 | Hail | 0.75 in | — | — | — | — | County |
| 16 Sep 1998 | Hail | 0.75 in | — | — | — | — | County |
| 12 Jun 1998 | Hail | 0.75 in | — | — | — | — | County |
| 6 Jun 1998 | Hail | 1.00 in | — | — | — | — | County |
| 1 Jul 1997 | Hail | 1.00 in | — | — | — | — | County |
| 18 Aug 1990 | Hail | 1.00 in | — | — | — | — | County |
| 18 Jul 1990 | Hail | 1.00 in | — | — | — | — | County |
| 21 Jul 1987 | Hail | 0.75 in | — | — | — | — | County |
Questions and answers
How many hail events has Trinity County had?
21 events in the NCEI Storm Events record between 1950 and 2026. Reporting of hail became far more complete after 1996, so early decades undercount.
When was the last recorded hail event in Trinity County?
30 Jul 2025 (Hail, 1.00 in). Records reach NCEI about 120 days after the month ends.
What was the most damaging hail event recorded in Trinity County?
NCEI records no damage estimate for events of this type in the county.
How does Trinity County compare with California for hail?
0.7 events per 100 square miles against 0.6 statewide; the county holds 21 of the state's 936 recorded events.
Provenance
NOAA NCEI Storm Events Database, yearly details files through 30 Jun 2026, public domain. County-recorded events plus zone-recorded events whose forecast zone is named for the county (marked "Forecast zone"). Population and area from the US Census Bureau (2021). Built 1 Oct 2026. See the methodology, the Hail hub and the county page.