Hail history for Delmont, South Dakota
NOAA hail reports in and within about 5 km (3 miles) of Delmont since 1974, with preliminary reports to November 3, 2026.
Readout · Delmont
- Last hail
- Jul 30, 2023
- 1.75 in, golf ball size
- Hail days, last 5 years
- 2
- since Nov 3, 2021 · 3 reports
- Largest ever
- 2.50 in
- tennis ball · Jul 30, 2023
14 reports on 10 days since 1974 · #208 of 305 South Dakota places
Hail map · Delmont
- 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 Delmont is from July 30, 2023. A local roofer can check and document it at no cost.
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What the record says about Delmont
The latest hail report in and around Delmont is from July 30, 2023, 1.75 in (golf ball size). Since November 3, 2021 there have been 2 separate hail days; the biggest stones in that time were 2.50 in on July 30, 2023.
Over the 20 years 2006–2025, Delmont logged 13 reports on 9 hail days, about 0.7 reports a year. That is 44% more than the median South Dakota town on this site (0.5 a year) and ranks #208 of 305 South Dakota cities and towns on this site for all-time reports. Delmont accounts for 14% of the 97 reports filed in Douglas County.
14% 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 2.50 in (tennis ball) on July 30, 2023 near 0.5 E Delmont.
Reports were up 60% in 2016–2025 (8) compared with 2006–2015 (5). The busiest year was 2018, with 4 reports on 1 day. Hail here peaks in April (36% of reports); 64% fall between April and June.
Reports a year 2006–2025 average
- Delmont 0.7
- Douglas County 3.2
- Median South Dakota town on this site 0.5
Hail days 2006–2025
- Delmont 9
- Douglas County 34
- Median South Dakota town on this site 7
Share 2 in or larger of sized reports
- Delmont 14%
- Douglas County 12%
- 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 | 2 | 2 | |||||||||||
| 2022 | 1 | 1 | |||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 1 | 1 | |||||||||||
| 2019 | 0 | ||||||||||||
| 2018 | 4 | 4 | |||||||||||
| 2017 | 0 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Jul 30, 2023 | 2 | 2.50 in | — |
| Apr 12, 2022 | 1 | 1.75 in | — |
Largest hail on record
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Jul 30, 2023 | 2.50 intennis ball | 0.5 E Delmont | Douglas | 13:35 local · NCEI |
| Sep 16, 2006 | 2.50 intennis ball | Delmont | Douglas | 16:33 local · NCEI |
| Jul 30, 2023 | 1.75 ingolf ball | 0.85 SE Delmont | Douglas | 13:36 local · NCEI |
| Apr 12, 2022 | 1.75 ingolf ball | 2.56 NW Delmont | Douglas | 16:49 local · NCEI |
| Apr 13, 2018 | 1.75 ingolf ball | 5.91 WSW Beardsley | Hutchinson | 04:21 local · NCEI |
Size of every report
- Under 1 in 0 0%
- 1–2 in 12 86%
- 2 in + 2 14%
Most recent reports
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Jul 30, 2023 | 1.75 ingolf ball | 0.85 SE Delmont | Douglas | 13:36 local · NCEI |
| Jul 30, 2023 | 2.50 intennis ball | 0.5 E Delmont | Douglas | 13:35 local · NCEI |
| Apr 12, 2022 | 1.75 ingolf ball | 2.56 NW Delmont | Douglas | 16:49 local · NCEI |
| Jun 8, 2020 | 1.00 inquarter | 2.56 SE Delmont | Douglas | 22:28 local · NCEI |
| Apr 13, 2018 | 1.00 inquarter | 2.89 SW Delmont | Douglas | 10:29 local · NCEI |
| Apr 13, 2018 | 1.00 inquarter | 2.81 N Delmont | Douglas | 04:25 local · NCEI |
| Apr 13, 2018 | 1.75 ingolf ball | 5.91 WSW Beardsley | Hutchinson | 04:21 local · NCEI |
| Apr 13, 2018 | 1.00 inquarter | 2.89 SW Delmont | Douglas | 04:18 local · NCEI |
| Jul 26, 2014 | 1.75 ingolf ball | 2.94 NNE Delmont | Douglas | 09:10 local · NCEI |
| Sep 4, 2012 | 1.00 inquarter | 0.5 E Delmont | Douglas | 17:50 local · NCEI |
| Jun 3, 2010 | 1.00 inquarter | 2.52 W Delmont | Douglas | 18:45 local · NCEI |
| Jun 5, 2008 | 1.00 inquarter | 2.13 WNW Delmont | Douglas | 10:30 local · NCEI |
Hail history near Delmont
Questions about hail in Delmont
How often does it hail in Delmont, South Dakota?
14 hail reports have been logged in and within about 5 km (3 miles) of Delmont since 1974. Over the 20 years 2006–2025 that averages 0.7 reports a year. That ranks #208 of 305 South Dakota places by number of reports.
When is hail season in Delmont?
Most reports come in April, June, July. April alone accounts for 36% of all reports.
What is the largest hail recorded in Delmont?
2.50 in (tennis ball size) on July 30, 2023 near 0.5 E Delmont. 14% of reports here were 2 inches or larger.
When did it last hail in Delmont?
The most recent report in this data is from July 30, 2023 (1.75 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Delmont 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 July 30, 2023.
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.