Hail history for Walla Walla County, Washington
Every NOAA hail report filed in Walla Walla County since 1958, with preliminary National Weather Service reports to November 3, 2026.
Readout · Walla Walla County
- Last hail
- Aug 10, 2019
- 1.00 in, quarter size
- Hail days, last 5 years
- 0
- since Nov 3, 2021 · 0 reports
- Largest ever
- 1.75 in
- golf ball · Jun 6, 1991
21 reports on 14 days since 1958 · #8 of 21 Washington counties
Hail map · Walla Walla 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 Walla Walla County is from August 10, 2019. A local roofer can check and document it at no cost.
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What the record says about Walla Walla County
The latest hail report in Walla Walla County is from August 10, 2019, 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, Walla Walla County logged 13 reports on 7 hail days, about 0.7 reports a year. That is 44% more than the median Washington county (0.5 a year) and ranks #8 of 21 Washington counties for all-time reports. Walla Walla County holds 5% of all 395 hail reports in Washington.
0% of reports with a size were 2 inches (hen egg) or larger, against 0% for the median Washington county. The largest hail on record here is 1.75 in (golf ball) on June 6, 1991.
Reports were down 82% in 2016–2025 (2) compared with 2006–2015 (11). The busiest year was 2012, with 5 reports on 4 days. Hail here peaks in May (24% of reports); 57% fall between April and June.
Reports a year 2006–2025 average
- Walla Walla County 0.7
- Median Washington county 0.5
Hail days 2006–2025
- Walla Walla County 7
- Median Washington county 7
Share 2 in or larger of sized reports
- Walla Walla County 0%
- Median Washington 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 | 2 | 2 | |||||||||||
| 2018 | 0 | ||||||||||||
| 2017 | 0 |
Largest hail on record
| Date | Size | Location | Time · source |
|---|---|---|---|
| Jun 6, 1991 | 1.75 ingolf ball | — | 20:57 local · NCEI |
| Jun 23, 2012 | 1.25 inhalf dollar | Waitsburg | 13:33 local · NCEI |
| Jul 14, 1975 | 1.12 inquarter | — | 16:58 local · NCEI |
| Aug 10, 2019 | 1.00 inquarter | 1.43 W Waitsburg | 14:32 local · NCEI |
| Aug 10, 2019 | 1.00 inquarter | 1.43 W Waitsburg | 14:25 local · NCEI |
Sizes filed before 1996 are often rough estimates (round numbers like 7.00 or 8.00 in) without an exact spot; they are shown as NOAA filed them.
Size of every report
- Under 1 in 11 52%
- 1–2 in 10 48%
- 2 in + 0 0%
Most recent reports
| Date | Size | Location | Time · source |
|---|---|---|---|
| Aug 10, 2019 | 1.00 inquarter | 1.43 W Waitsburg | 14:32 local · NCEI |
| Aug 10, 2019 | 1.00 inquarter | 1.43 W Waitsburg | 14:25 local · NCEI |
| Jul 20, 2012 | 0.75 inpenny | 3.49 N Kooskooskie | 13:03 local · NCEI |
| Jul 13, 2012 | 1.00 inquarter | 4.82 NE Kooskooskie | 19:35 local · NCEI |
| Jul 13, 2012 | 1.00 inquarter | 4.73 NE Kooskooskie | 19:35 local · NCEI |
| Jun 23, 2012 | 1.25 inhalf dollar | Waitsburg | 13:33 local · NCEI |
| Apr 4, 2012 | 0.75 inpenny | 1.18 NW Walla Walla | 15:45 local · NCEI |
| May 31, 2011 | 0.75 inpenny | 2.04 WNW Touchet | 18:30 local · NCEI |
| May 31, 2011 | 0.75 inpenny | 2.77 WSW Touchet | 18:30 local · NCEI |
| May 31, 2011 | 0.88 innickel | 2.77 WSW Touchet | 18:30 local · NCEI |
| May 31, 2011 | 1.00 inquarter | 2.77 WSW Touchet | 18:30 local · NCEI |
| Aug 8, 2008 | 1.00 inquarter | Waitsburg | 17:20 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 |
|---|---|---|---|
| Waitsburg | 7 | 5 | Aug 10, 2019 |
| Touchet | 6 | 3 | May 31, 2011 |
| Walla Walla | 4 | 4 | Apr 4, 2012 |
| College Place | 1 | 1 | Apr 16, 2003 |
Questions about hail in Walla Walla County
How often does it hail in Walla Walla County, Washington?
21 hail reports have been logged in Walla Walla County since 1958. Over the 20 years 2006–2025 that averages 0.7 reports a year. That ranks #8 of 21 Washington counties by number of reports.
When is hail season in Walla Walla County?
Most reports come in May, July, April. May alone accounts for 24% of all reports.
What is the largest hail recorded in Walla Walla County?
1.75 in (golf ball size) on June 6, 1991. 0% of reports here were 2 inches or larger.
When did it last hail in Walla Walla County?
The most recent report in this data is from August 10, 2019 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Walla Walla County had in the last five years?
None: there has been no hail report in Walla Walla County since November 3, 2021. The last one was on August 10, 2019.
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.