HailEvidence → hail history by county → California → Sonoma County
Hail dates in Sonoma County, California
The National Weather Service has recorded hail in Sonoma County on 11 days since 2016 (20 separate reports, 0 of them quarter-size or larger). The largest stone on record was 0.25" on March 10, 2021; the most recent hail was March 10, 2021. Every row below is an official NWS record. Check hail at your exact address, free →
Every hail day in Sonoma County since 2016
One row per day the NWS logged hail somewhere in the county. The narrative names the town; the free check below narrows it to your address.
| Date | Largest hail | Reports | NWS narrative |
|---|---|---|---|
| 2021-03-10 | 0.25" | 1 | Santa Rosa Fire Department reports multiple vehicle accidents on hwy 101 due to accumulating small hail. |
| 2020-08-17 | 0.25" | 1 | Video on twitter showing small hail in Santa Rosa. |
| 2020-03-25 | 0.25" | 4 | Quarter inch hail reported in Cloverdale. |
| 2019-02-15 | 0.25" | 2 | — |
| 2018-03-14 | 0.25" | 1 | The Press Democrat in Santa Rosa showed multiple reports of accumulating small hail in downtown Petaluma|http://www.pressdemocrat.com/gallery/8113553-181/rea… |
| 2018-02-26 | 0.25" | 1 | — |
| 2018-02-22 | 0.25" | 1 | Mainly smaller than pea-sized hail. |
| 2018-01-25 | 0.25" | 3 | BB sized hail. |
| 2018-01-19 | 0.25" | 3 | CoCoRaHS observer reported pea sized hail near Petaluma. |
| 2017-06-11 | 0.25" | 2 | — |
| 2017-03-05 | 0.25" | 1 | — |
Hail days by year
| Year | Hail days | Reports | Largest |
|---|---|---|---|
| 2021 | 1 | 1 | 0.25" |
| 2020 | 2 | 5 | 0.25" |
| 2019 | 1 | 2 | 0.25" |
| 2018 | 5 | 9 | 0.25" |
| 2017 | 2 | 3 | 0.25" |
Damaging wind in Sonoma County
Thunderstorm wind of 58 mph or more (the NWS severe threshold), 1 reports since 2016, strongest 69 mph. Wind and tornado records are included in the extended report.
| Date | Peak gust | Reports | NWS narrative |
|---|---|---|---|
| 2020-08-16 | 69 mph | 1 | Mesonet station (PG&E) reported gusts near Forest Lake. |
Was hail recorded at your Sonoma County address? Check free
Type a street address — or just a ZIP code. We measure it
against every hail event the National Weather Service recorded in the last 10 years and show you
how many fall within 1, 3 and 10 miles — free, instantly, nothing stored. Rural property with no street
address? Enter coordinates as 44.05, -107.31.
Address lookup by the U.S. Census Bureau geocoder. Records: NOAA NCEI Storm Events (final) plus SPC preliminary reports for storms newer than the latest compile — see methodology.
Need it in writing for a claim?
The verification report lists every NWS hail (and, in the extended version, wind and tornado) record within 1, 3 and 10 miles of one address, each linked to its official source, with the disputed date called out in plain English. Adjusters can verify every line.
10-year hail history for one address + the disputed-date finding.
15-year window, wind & tornado records, plus a drafted claim-appeal letter.
Questions
What date did hail last hit Sonoma County?
March 10, 2021, per the NWS Storm Events record. The largest since 2016 was 0.25" on March 10, 2021.
Does a county record prove hail at my house?
No. NWS records are point and path observations. The absence of a nearby report does NOT prove that no hail fell at this address — it means no observation was logged nearby. A report of nearby hail documents the event; it does not by itself prove damage to a specific structure. The free check above shows what was recorded near your specific address, with distances.
Nearby counties
Santa Clara County, CA (94 mi) · Humboldt County, CA (186 mi) · Deschutes County, OR (394 mi) · Clark County, NV (452 mi) · Mohave County, AZ (529 mi) · Salt Lake County, UT (597 mi) · Yavapai County, AZ (634 mi) · Coconino County, AZ (645 mi)
See also: California hail history by city · all counties