Hail history for Riverdale, North Dakota
NOAA hail reports in and within about 5 km (3 miles) of Riverdale since 1997, with preliminary reports to November 3, 2026.
Readout · Riverdale
- Last hail
- Jun 28, 2026
- 1.00 in, quarter size
- Hail days, last 5 years
- 3
- since Nov 3, 2021 · 3 reports
- Largest ever
- 1.75 in
- golf ball · Aug 10, 2007
12 reports on 8 days since 1997 · #159 of 208 North Dakota places
Hail map · Riverdale
- 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 Riverdale
The latest hail report in and around Riverdale is from June 28, 2026, 1.00 in (quarter size). Since November 3, 2021 there have been 3 separate hail days; the biggest stones in that time were 1.00 in on June 28, 2026.
Over the 20 years 2006–2025, Riverdale logged 9 reports on 5 hail days, about 0.5 reports a year. That is 13% more than the median North Dakota town on this site (0.4 a year) and ranks #159 of 208 North Dakota cities and towns on this site for all-time reports. Riverdale accounts for 4% of the 285 reports filed in McLean County.
0% of reports with a size were 2 inches (hen egg) or larger, against 8% for the median North Dakota town on this site. The largest hail on record here is 1.75 in (golf ball) on August 10, 2007 near Riverdale.
Reports were down 71% in 2016–2025 (2) compared with 2006–2015 (7). The busiest year was 2008, with 3 reports on 1 day. Hail here peaks in June (58% of reports); 58% fall between April and June.
Reports a year 2006–2025 average
- Riverdale 0.5
- McLean County 7.8
- Median North Dakota town on this site 0.4
Hail days 2006–2025
- Riverdale 5
- McLean County 74
- Median North Dakota town on this site 7
Share 2 in or larger of sized reports
- Riverdale 0%
- McLean County 7%
- Median North Dakota town on this site 8%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 2 | 2 | |||||||||||
| 2025 | 0 | ||||||||||||
| 2024 | 0 | ||||||||||||
| 2023 | 1 | 1 | |||||||||||
| 2022 | 0 | ||||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 1 | 1 | |||||||||||
| 2019 | 0 | ||||||||||||
| 2018 | 0 | ||||||||||||
| 2017 | 0 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Jun 28, 2026 | 1 | 1.00 in | — |
| Jun 9, 2026 | 1 | 0.88 in | — |
| Aug 1, 2023 | 1 | 0.88 in | — |
Largest hail on record
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Aug 10, 2007 | 1.75 ingolf ball | Riverdale | Mclean | 10:30 local · NCEI |
| Jun 18, 2008 | 1.50 inping pong ball | Riverdale | Mclean | 15:56 local · NCEI |
| Aug 10, 2007 | 1.50 inping pong ball | Riverdale | Mclean | 11:17 local · NCEI |
| Aug 10, 2007 | 1.25 inhalf dollar | Riverdale | Mclean | 10:04 local · NCEI |
| Jun 28, 2026 | 1.00 inquarter | Riverdale | Mclean | 19:54 local · NCEI |
Size of every report
- Under 1 in 5 42%
- 1–2 in 7 58%
- 2 in + 0 0%
Most recent reports
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Jun 28, 2026 | 1.00 inquarter | Riverdale | Mclean | 19:54 local · NCEI |
| Jun 9, 2026 | 0.88 innickel | Riverdale | Mclean | 17:28 local · NCEI |
| Aug 1, 2023 | 0.88 innickel | Riverdale | Mclean | 19:08 local · NCEI |
| Jun 28, 2020 | 0.88 innickel | Riverdale | Mclean | 15:50 local · NCEI |
| Jun 26, 2009 | 1.00 inquarter | 3.94 SE Riverdale | Mclean | 16:55 local · NCEI |
| Jun 18, 2008 | 1.50 inping pong ball | Riverdale | Mclean | 15:56 local · NCEI |
| Jun 18, 2008 | 1.00 inquarter | Riverdale | Mclean | 15:05 local · NCEI |
| Jun 18, 2008 | 0.88 innickel | Riverdale | Mclean | 13:55 local · NCEI |
| Aug 10, 2007 | 1.50 inping pong ball | Riverdale | Mclean | 11:17 local · NCEI |
| Aug 10, 2007 | 1.75 ingolf ball | Riverdale | Mclean | 10:30 local · NCEI |
| Aug 10, 2007 | 1.25 inhalf dollar | Riverdale | Mclean | 10:04 local · NCEI |
| Jul 13, 1997 | 0.75 inpenny | 2 NE Riverdale | Mclean | 12:55 local · NCEI |
Hail history near Riverdale
Questions about hail in Riverdale
How often does it hail in Riverdale, North Dakota?
12 hail reports have been logged in and within about 5 km (3 miles) of Riverdale since 1997. Over the 20 years 2006–2025 that averages 0.5 reports a year. That ranks #159 of 208 North Dakota places by number of reports.
When is hail season in Riverdale?
Most reports come in June, August, July. June alone accounts for 58% of all reports.
What is the largest hail recorded in Riverdale?
1.75 in (golf ball size) on August 10, 2007 near Riverdale. 0% of reports here were 2 inches or larger.
When did it last hail in Riverdale?
The most recent report in this data is from June 28, 2026 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Riverdale had in the last five years?
3 separate days with hail reports since November 3, 2021, adding up to 3 reports. The most recent was June 28, 2026.
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.