Hail history for Frederick, South Dakota
NOAA hail reports in and within about 5 km (3 miles) of Frederick since 1983, with preliminary reports to November 3, 2026.
Readout · Frederick
- Last hail
- Jul 9, 2024
- 1.25 in, half dollar size
- Hail days, last 5 years
- 2
- since Nov 3, 2021 · 2 reports
- Largest ever
- 1.75 in
- golf ball · Jul 9, 2013
16 reports on 11 days since 1983 · #172 of 305 South Dakota places
Hail map · Frederick
- 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 Frederick is from July 9, 2024. A local roofer can check and document it at no cost.
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What the record says about Frederick
The latest hail report in and around Frederick is from July 9, 2024, 1.25 in (half dollar size). Since November 3, 2021 there have been 2 separate hail days; the biggest stones in that time were 1.25 in on July 9, 2024.
Over the 20 years 2006–2025, Frederick logged 8 reports on 6 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 #172 of 305 South Dakota cities and towns on this site for all-time reports. Frederick accounts for 4% of the 445 reports filed in Brown 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 9, 2013 near 2.81 S Frederick.
Reports held about level in 2016–2025 (4) compared with 2006–2015 (4). The busiest year was 2013, with 3 reports on 1 day. Hail here peaks in July (44% of reports); 19% fall between April and June.
Reports a year 2006–2025 average
- Frederick 0.4
- Brown County 11.4
- Median South Dakota town on this site 0.5
Hail days 2006–2025
- Frederick 6
- Brown County 84
- Median South Dakota town on this site 7
Share 2 in or larger of sized reports
- Frederick 0%
- Brown County 7%
- 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 | 1 | 1 | |||||||||||
| 2023 | 0 | ||||||||||||
| 2022 | 1 | 1 | |||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 0 | ||||||||||||
| 2019 | 0 | ||||||||||||
| 2018 | 0 | ||||||||||||
| 2017 | 1 | 1 | 2 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Jul 9, 2024 | 1 | 1.25 in | — |
| Jul 21, 2022 | 1 | 1.00 in | — |
Largest hail on record
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Jul 9, 2013 | 1.75 ingolf ball | 2.81 S Frederick | Brown | 17:58 local · NCEI |
| Sep 1, 1996 | 1.75 ingolf ball | 1 W Frederick | Brown | 17:45 local · NCEI |
| Aug 3, 1989 | 1.75 ingolf ball | — | Brown | 20:15 local · NCEI |
| Jun 27, 1989 | 1.75 ingolf ball | — | Brown | 17:33 local · NCEI |
| Aug 29, 1983 | 1.75 ingolf ball | — | Brown | 16:00 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 5 31%
- 1–2 in 11 69%
- 2 in + 0 0%
Most recent reports
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Jul 9, 2024 | 1.25 inhalf dollar | 2.5 ENE Frederick | Brown | 19:10 local · NCEI |
| Jul 21, 2022 | 1.00 inquarter | 1.93 W Frederick | Brown | 18:20 local · NCEI |
| Sep 19, 2017 | 0.75 inpenny | 0.84 NW Frederick | Brown | 18:17 local · NCEI |
| Jul 5, 2017 | 1.50 inping pong ball | 1.19 SW Frederick | Brown | 19:48 local · NCEI |
| Jul 9, 2013 | 1.75 ingolf ball | 2.81 S Frederick | Brown | 17:58 local · NCEI |
| Jul 9, 2013 | 1.00 inquarter | 0.48 W Frederick | Brown | 17:55 local · NCEI |
| Jul 9, 2013 | 1.50 inping pong ball | 2.81 S Winship | Brown | 17:50 local · NCEI |
| Jul 15, 2007 | 0.75 inpenny | 3 W Frederick | Brown | 22:25 local · NCEI |
| May 8, 2005 | 0.88 innickel | Warner | Brown | 15:13 local · NCEI |
| May 8, 2005 | 0.75 inpenny | 9 S Northville | Spink | 14:20 local · NCEI |
| Sep 1, 1996 | 0.75 inpenny | Frederick | Brown | 17:45 local · NCEI |
| Sep 1, 1996 | 1.75 ingolf ball | 1 W Frederick | Brown | 17:45 local · NCEI |
Hail history near Frederick
Questions about hail in Frederick
How often does it hail in Frederick, South Dakota?
16 hail reports have been logged in and within about 5 km (3 miles) of Frederick since 1983. Over the 20 years 2006–2025 that averages 0.4 reports a year. That ranks #172 of 305 South Dakota places by number of reports.
When is hail season in Frederick?
Most reports come in July, August, September. July alone accounts for 44% of all reports.
What is the largest hail recorded in Frederick?
1.75 in (golf ball size) on July 9, 2013 near 2.81 S Frederick. 0% of reports here were 2 inches or larger.
When did it last hail in Frederick?
The most recent report in this data is from July 9, 2024 (1.25 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Frederick had in the last five years?
2 separate days with hail reports since November 3, 2021, adding up to 2 reports. The most recent was July 9, 2024.
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.