Hail history for San Joaquin County, California
Every NOAA hail report filed in San Joaquin County since 2000, with preliminary National Weather Service reports to November 3, 2026.
Readout · San Joaquin County
- Last hail
- Apr 10, 2026
- 1.00 in, quarter size
- Hail days, last 5 years
- 2
- since Nov 3, 2021 · 3 reports
- Largest ever
- 1.00 in
- quarter · Apr 10, 2026
5 reports on 4 days since 2000 · #46 of 47 California counties
Hail map · San Joaquin County
- Under 1 in
- 1–1.75 in
- 1.75–2.5 in
- 2.5–4 in
- 4 in +
- No size
For homeowners
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What the record says about San Joaquin County
The latest hail report in San Joaquin County is from April 10, 2026, 1.00 in (quarter size). Since November 3, 2021 there have been 2 separate hail days; the biggest stones in that time were 1.00 in on April 10, 2026.
Over the 20 years 2006–2025, San Joaquin County logged 3 reports on 2 hail days, about 0.1 reports a year. That is 37% of the median California county (0.4 a year) and ranks #46 of 47 California counties for all-time reports. San Joaquin 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 1.00 in (quarter) on April 10, 2026 near 0.69 N Ripon.
The busiest year was 2023, with 2 reports on 1 day. Hail here peaks in March (60% of reports); 40% fall between April and June.
Reports a year 2006–2025 average
- San Joaquin County 0.1
- Median California county 0.4
Hail days 2006–2025
- San Joaquin County 2
- Median California county 7
Share 2 in or larger of sized reports
- San Joaquin County 0%
- Median California county 0%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 1 | 1 | |||||||||||
| 2025 | 0 | ||||||||||||
| 2024 | 0 | ||||||||||||
| 2023 | 2 | 2 | |||||||||||
| 2022 | 0 | ||||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 0 | ||||||||||||
| 2019 | 0 | ||||||||||||
| 2018 | 0 | ||||||||||||
| 2017 | 0 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Apr 10, 2026 | 1 | 1.00 in | — |
| Mar 11, 2023 | 2 | 1.00 in | — |
Largest hail on record
| Date | Size | Location | Time · source |
|---|---|---|---|
| Apr 10, 2026 | 1.00 inquarter | 0.69 N Ripon | 13:07 local · NCEI |
| Mar 11, 2023 | 1.00 inquarter | 0.54 W Orford | 13:01 local · NCEI |
| Mar 11, 2023 | 1.00 inquarter | 1.63 W Stockton | 12:42 local · NCEI |
| Mar 31, 2013 | 1.00 inquarter | 5.86 NNW Janney | 17:30 local · NCEI |
| Apr 13, 2000 | 0.75 inpenny | Linden | 13:11 local · NCEI |
Size of every report
- Under 1 in 1 20%
- 1–2 in 4 80%
- 2 in + 0 0%
Most recent reports
| Date | Size | Location | Time · source |
|---|---|---|---|
| Apr 10, 2026 | 1.00 inquarter | 0.69 N Ripon | 13:07 local · NCEI |
| Mar 11, 2023 | 1.00 inquarter | 0.54 W Orford | 13:01 local · NCEI |
| Mar 11, 2023 | 1.00 inquarter | 1.63 W Stockton | 12:42 local · NCEI |
| Mar 31, 2013 | 1.00 inquarter | 5.86 NNW Janney | 17:30 local · NCEI |
| Apr 13, 2000 | 0.75 inpenny | Linden | 13:11 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 |
|---|---|---|---|
| Stockton | 2 | 1 | Mar 11, 2023 |
| Linden | 1 | 1 | Apr 13, 2000 |
| Mountain House | 1 | 1 | Mar 31, 2013 |
| Ripon | 1 | 1 | Apr 10, 2026 |
Questions about hail in San Joaquin County
How often does it hail in San Joaquin County, California?
5 hail reports have been logged in San Joaquin County since 2000. Over the 20 years 2006–2025 that averages 0.1 reports a year. That ranks #46 of 47 California counties by number of reports.
When is hail season in San Joaquin County?
Most reports come in March, April. March alone accounts for 60% of all reports.
What is the largest hail recorded in San Joaquin County?
1.00 in (quarter size) on April 10, 2026 near 0.69 N Ripon. 0% of reports here were 2 inches or larger.
When did it last hail in San Joaquin County?
The most recent report in this data is from April 10, 2026 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has San Joaquin County had in the last five years?
2 separate days with hail reports since November 3, 2021, adding up to 3 reports. The most recent was April 10, 2026.
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.