Hail history for San Luis Obispo County, California
Every NOAA hail report filed in San Luis Obispo County since 2001, with preliminary National Weather Service reports to November 3, 2026.
Readout · San Luis Obispo County
- Last hail
- Mar 22, 2017
- 1.00 in, quarter size
- Hail days, last 5 years
- 0
- since Nov 3, 2021 · 0 reports
- Largest ever
- 1.00 in
- quarter · Mar 22, 2017
5 reports on 4 days since 2001 · #47 of 47 California counties
Hail map · San Luis Obispo 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 Luis Obispo County
The latest hail report in San Luis Obispo County is from March 22, 2017, 1.00 in (quarter size). There has been no hail report here in the five years since November 3, 2021.
Over the 20 years 2006–2025, San Luis Obispo County logged 2 reports on 2 hail days, about 0.1 reports a year. That is 25% of the median California county (0.4 a year) and ranks #47 of 47 California counties for all-time reports. San Luis Obispo 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 March 22, 2017 near 2.39 NNW Creston.
The busiest year was 2005, with 2 reports on 1 day. Hail here peaks in February (40% of reports); 20% fall between April and June.
Reports a year 2006–2025 average
- San Luis Obispo County 0.1
- Median California county 0.4
Hail days 2006–2025
- San Luis Obispo County 2
- Median California county 7
Share 2 in or larger of sized reports
- San Luis Obispo 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 | 0 | ||||||||||||
| 2020 | 0 | ||||||||||||
| 2019 | 0 | ||||||||||||
| 2018 | 0 | ||||||||||||
| 2017 | 1 | 1 |
Largest hail on record
| Date | Size | Location | Time · source |
|---|---|---|---|
| Mar 22, 2017 | 1.00 inquarter | 2.39 NNW Creston | 12:40 local · NCEI |
| May 28, 2009 | 0.75 inpenny | 12.01 W Simmler | 14:45 local · NCEI |
| Feb 23, 2005 | 0.75 inpenny | Cayucos | 15:50 local · NCEI |
| Feb 23, 2005 | 0.75 inpenny | Central Portion | 15:05 local · NCEI |
| Mar 6, 2001 | 0.75 inpenny | Santa Margarita | 15:30 local · NCEI |
Size of every report
- Under 1 in 4 80%
- 1–2 in 1 20%
- 2 in + 0 0%
Most recent reports
| Date | Size | Location | Time · source |
|---|---|---|---|
| Mar 22, 2017 | 1.00 inquarter | 2.39 NNW Creston | 12:40 local · NCEI |
| May 28, 2009 | 0.75 inpenny | 12.01 W Simmler | 14:45 local · NCEI |
| Feb 23, 2005 | 0.75 inpenny | Cayucos | 15:50 local · NCEI |
| Feb 23, 2005 | 0.75 inpenny | Central Portion | 15:05 local · NCEI |
| Mar 6, 2001 | 0.75 inpenny | Santa Margarita | 15:30 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 |
|---|---|---|---|
| Cayucos | 1 | 1 | Feb 23, 2005 |
| Creston | 1 | 1 | Mar 22, 2017 |
| Santa Margarita | 1 | 1 | Mar 6, 2001 |
Questions about hail in San Luis Obispo County
How often does it hail in San Luis Obispo County, California?
5 hail reports have been logged in San Luis Obispo County since 2001. Over the 20 years 2006–2025 that averages 0.1 reports a year. That ranks #47 of 47 California counties by number of reports.
When is hail season in San Luis Obispo County?
Most reports come in February, March, May. February alone accounts for 40% of all reports.
What is the largest hail recorded in San Luis Obispo County?
1.00 in (quarter size) on March 22, 2017 near 2.39 NNW Creston. 0% of reports here were 2 inches or larger.
When did it last hail in San Luis Obispo County?
The most recent report in this data is from March 22, 2017 (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 Luis Obispo County had in the last five years?
None: there has been no hail report in San Luis Obispo County since November 3, 2021. The last one was on March 22, 2017.
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.