Hail history for Boulder Canyon, South Dakota
NOAA hail reports in and within about 5 km (3 miles) of Boulder Canyon since 2002, with preliminary reports to November 3, 2026.
Readout · Boulder Canyon
- Last hail
- Jun 29, 2020
- 1.00 in, quarter size
- Hail days, last 5 years
- 0
- since Nov 3, 2021 · 0 reports
- Largest ever
- 1.75 in
- golf ball · Jul 27, 2015
10 reports on 9 days since 2002 · #285 of 305 South Dakota places
Hail map · Boulder Canyon
- 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 Boulder Canyon is from June 29, 2020. A local roofer can check and document it at no cost.
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What the record says about Boulder Canyon
The latest hail report in and around Boulder Canyon is from June 29, 2020, 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, Boulder Canyon logged 8 reports on 7 hail days, about 0.4 reports a year. That is 11% less than the median South Dakota town on this site (0.5 a year) and ranks #285 of 305 South Dakota cities and towns on this site for all-time reports. Boulder Canyon accounts for 2% of the 547 reports filed in Lawrence County.
0% of reports with a size were 2 inches (hen egg) or larger, against 7% for the median South Dakota town on this site. The largest hail on record here is 1.75 in (golf ball) on July 27, 2015 near 4.7 SSE Whitewood.
Reports were down 40% in 2016–2025 (3) compared with 2006–2015 (5). The busiest year was 2015, with 3 reports on 2 days. Hail here peaks in July (40% of reports); 20% fall between April and June.
Reports a year 2006–2025 average
- Boulder Canyon 0.4
- Lawrence County 18.4
- Median South Dakota town on this site 0.5
Hail days 2006–2025
- Boulder Canyon 7
- Lawrence County 173
- Median South Dakota town on this site 7
Share 2 in or larger of sized reports
- Boulder Canyon 0%
- Lawrence County 6%
- Median South Dakota town on this site 7%
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 | 1 | 1 | |||||||||||
| 2019 | 1 | 1 | |||||||||||
| 2018 | 1 | 1 | |||||||||||
| 2017 | 0 |
Largest hail on record
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Jul 27, 2015 | 1.75 ingolf ball | 4.7 SSE Whitewood | Lawrence | 14:00 local · NCEI |
| Jul 27, 2015 | 1.75 ingolf ball | 4.96 NNE Galena | Lawrence | 13:45 local · NCEI |
| Jul 5, 2019 | 1.50 inping pong ball | 5 SE Whitewood | Lawrence | 15:24 local · NCEI |
| Jun 29, 2020 | 1.00 inquarter | 1.64 ENE Galena | Lawrence | 15:55 local · NCEI |
| Aug 18, 2018 | 1.00 inquarter | 5 SSE Whitewood | Lawrence | 13:32 local · NCEI |
Size of every report
- Under 1 in 2 20%
- 1–2 in 8 80%
- 2 in + 0 0%
Most recent reports
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Jun 29, 2020 | 1.00 inquarter | 1.64 ENE Galena | Lawrence | 15:55 local · NCEI |
| Jul 5, 2019 | 1.50 inping pong ball | 5 SE Whitewood | Lawrence | 15:24 local · NCEI |
| Aug 18, 2018 | 1.00 inquarter | 5 SSE Whitewood | Lawrence | 13:32 local · NCEI |
| Aug 8, 2015 | 1.00 inquarter | 4.4 SSE Whitewood | Lawrence | 14:38 local · NCEI |
| Jul 27, 2015 | 1.75 ingolf ball | 4.7 SSE Whitewood | Lawrence | 14:00 local · NCEI |
| Jul 27, 2015 | 1.75 ingolf ball | 4.96 NNE Galena | Lawrence | 13:45 local · NCEI |
| Jul 26, 2010 | 1.00 inquarter | 5.51 NW Galena | Lawrence | 15:40 local · NCEI |
| Jun 21, 2007 | 1.00 inquarter | 3 ENE Deadwood | Lawrence | 15:05 local · NCEI |
| Aug 23, 2005 | 0.75 inpenny | 4 S Whitewood | Lawrence | 20:15 local · NCEI |
| Aug 8, 2002 | 0.75 inpenny | 5 S Whitewood | Lawrence | 15:15 local · NCEI |
Hail history near Boulder Canyon
Questions about hail in Boulder Canyon
How often does it hail in Boulder Canyon, South Dakota?
10 hail reports have been logged in and within about 5 km (3 miles) of Boulder Canyon since 2002. Over the 20 years 2006–2025 that averages 0.4 reports a year. That ranks #285 of 305 South Dakota places by number of reports.
When is hail season in Boulder Canyon?
Most reports come in July, August, June. July alone accounts for 40% of all reports.
What is the largest hail recorded in Boulder Canyon?
1.75 in (golf ball size) on July 27, 2015 near 4.7 SSE Whitewood. 0% of reports here were 2 inches or larger.
When did it last hail in Boulder Canyon?
The most recent report in this data is from June 29, 2020 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Boulder Canyon had in the last five years?
None: there has been no hail report in and within about 5 km (3 miles) of Boulder Canyon since November 3, 2021. The last one was on June 29, 2020.
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.