Hail history for Marin County, California
Every NOAA hail report filed in Marin County since 1996, with preliminary National Weather Service reports to November 3, 2026.
Readout · Marin County
- Last hail
- Mar 10, 2021
- 0.25 in, pea size
- Hail days, last 5 years
- 0
- since Nov 3, 2021 · 0 reports
- Largest ever
- 0.25 in
- pea · Mar 10, 2021
12 reports on 11 days since 1996 · #27 of 47 California counties
Hail map · Marin County
- Under 1 in
- 1–1.75 in
- 1.75–2.5 in
- 2.5–4 in
- 4 in +
- No size
For homeowners
Roof damage after hail? Get a free inspection
Hail bruises shingles and cracks seals in ways you can't see from the ground, and most insurers set a claim deadline after the storm. The latest hail report in Marin County is from March 10, 2021. A local roofer can check and document it at no cost.
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What the record says about Marin County
The latest hail report in Marin County is from March 10, 2021, 0.25 in (pea size). There has been no hail report here in the five years since November 3, 2021.
Over the 20 years 2006–2025, Marin County logged 11 reports on 10 hail days, about 0.6 reports a year. That is 38% more than the median California county (0.4 a year) and ranks #27 of 47 California counties for all-time reports. Marin County holds 1% of all 938 hail reports in California.
0% of reports with a size were 2 inches (hen egg) or larger, against 0% for the median California county. The largest hail on record here is 0.25 in (pea) on March 10, 2021 near Marin City.
Reports were up 1100% in 2016–2025 (11) compared with 2006–2015 (0). The busiest year was 2018, with 6 reports on 5 days. Hail here peaks in March (58% of reports); 8% fall between April and June.
Reports a year 2006–2025 average
- Marin County 0.6
- Median California county 0.4
Hail days 2006–2025
- Marin County 10
- Median California county 7
Share 2 in or larger of sized reports
- Marin County 0%
- Median California county 0%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 0 | ||||||||||||
| 2025 | 0 | ||||||||||||
| 2024 | 0 | ||||||||||||
| 2023 | 0 | ||||||||||||
| 2022 | 0 | ||||||||||||
| 2021 | 1 | 1 | |||||||||||
| 2020 | 1 | 1 | 2 | ||||||||||
| 2019 | 1 | 1 | |||||||||||
| 2018 | 1 | 4 | 1 | 6 | |||||||||
| 2017 | 1 | 1 |
Largest hail on record
| Date | Size | Location | Damage | Time · source |
|---|---|---|---|---|
| Mar 10, 2021 | 0.25 inpea | Marin City | — | 07:45 local · NCEI |
| Aug 17, 2020 | 0.25 inpea | 1 NE Ross | — | 05:03 local · NCEI |
| Mar 25, 2020 | 0.25 inpea | Kentfield | — | 10:50 local · NCEI |
| Dec 25, 2019 | 0.25 inpea | 0.55 W Sausalito | $500 | 04:25 local · NCEI |
| Apr 16, 2018 | 0.25 inpea | Mill Vly | — | 09:27 local · NCEI |
Size of every report
- Under 1 in 12 100%
- 1–2 in 0 0%
- 2 in + 0 0%
Most recent reports
| Date | Size | Location | Damage | Time · source |
|---|---|---|---|---|
| Mar 10, 2021 | 0.25 inpea | Marin City | — | 07:45 local · NCEI |
| Aug 17, 2020 | 0.25 inpea | 1 NE Ross | — | 05:03 local · NCEI |
| Mar 25, 2020 | 0.25 inpea | Kentfield | — | 10:50 local · NCEI |
| Dec 25, 2019 | 0.25 inpea | 0.55 W Sausalito | $500 | 04:25 local · NCEI |
| Apr 16, 2018 | 0.25 inpea | Mill Vly | — | 09:27 local · NCEI |
| Mar 17, 2018 | 0.25 inpea | Corte Madera | — | 12:37 local · NCEI |
| Mar 3, 2018 | 0.25 inpea | Mill Vly | — | 10:50 local · NCEI |
| Mar 3, 2018 | 0.25 inpea | 3 W San Rafael | — | 09:58 local · NCEI |
| Mar 2, 2018 | 0.25 inpea | Bolinas | — | 08:17 local · NCEI |
| Jan 25, 2018 | 0.25 inpea | 0.57 W Sausalito | — | 13:00 local · NCEI |
| Nov 4, 2017 | 0.25 inpea | 2 SW San Rafael | — | 01:04 local · NCEI |
| Mar 4, 1996 | 0.01 inpea | Corte Madera | — | 16:30 local · NCEI |
Smaller places with fewer than 10 reports
These places have too few reports for a page of their own, so their record lives here.
| Place | Reports | Hail days | Latest |
|---|---|---|---|
| Larkspur | 2 | 2 | Mar 17, 2018 |
| Mill Valley | 2 | 2 | Apr 16, 2018 |
| San Rafael | 2 | 2 | Aug 17, 2020 |
| Sausalito | 2 | 2 | Dec 25, 2019 |
| Bolinas | 1 | 1 | Mar 2, 2018 |
| Kentfield | 1 | 1 | Mar 25, 2020 |
| San Anselmo | 1 | 1 | Mar 3, 2018 |
| Tamalpais-Homestead Valley | 1 | 1 | Mar 10, 2021 |
Questions about hail in Marin County
How often does it hail in Marin County, California?
12 hail reports have been logged in Marin County since 1996. Over the 20 years 2006–2025 that averages 0.6 reports a year. That ranks #27 of 47 California counties by number of reports.
When is hail season in Marin County?
Most reports come in March, January, April. March alone accounts for 58% of all reports.
What is the largest hail recorded in Marin County?
0.25 in (pea size) on March 10, 2021 near Marin City. 0% of reports here were 2 inches or larger.
When did it last hail in Marin County?
The most recent report in this data is from March 10, 2021 (0.25 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Marin County had in the last five years?
None: there has been no hail report in Marin County since November 3, 2021. The last one was on March 10, 2021.
Where does this hail data come from?
Hail reports come from the NOAA NCEI Storm Events Database, which the National Weather Service compiles from spotter, public, law enforcement and media reports. Recent days use preliminary NWS Local Storm Reports via the Iowa Environmental Mesonet until NOAA publishes final data. Only reported hail is counted, so areas with fewer people tend to have fewer reports.