Hail history for Mountrail County, North Dakota
Every NOAA hail report filed in Mountrail County since 1964, with preliminary National Weather Service reports to November 3, 2026.
Readout · Mountrail County
- Last hail
- Jul 5, 2026
- 1.00 in, quarter size
- Hail days, last 5 years
- 12
- since Nov 3, 2021 · 21 reports
- Largest ever
- 4.50 in
- softball · Jul 6, 1971
189 reports on 107 days since 1964 · #20 of 54 North Dakota counties
Hail map · Mountrail County
- 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 Mountrail County
The latest hail report in Mountrail County is from July 5, 2026, 1.00 in (quarter size). Since November 3, 2021 there have been 12 separate hail days; the biggest stones in that time were 2.00 in on July 14, 2024.
Over the 20 years 2006–2025, Mountrail County logged 113 reports on 59 hail days, about 5.7 reports a year. That is 24% more than the median North Dakota county (4.5 a year) and ranks #20 of 54 North Dakota counties for all-time reports. Mountrail County holds 2% of all 10,117 hail reports in North Dakota.
9% of reports with a size were 2 inches (hen egg) or larger, against 9% for the median North Dakota county. The largest hail on record here is 4.50 in (softball) on July 6, 1971.
Reports were up 17% in 2016–2025 (61) compared with 2006–2015 (52). The busiest year was 2010, with 18 reports on 7 days. Hail here peaks in July (41% of reports); 30% fall between April and June.
Reports a year 2006–2025 average
- Mountrail County 5.7
- Median North Dakota county 4.5
Hail days 2006–2025
- Mountrail County 59
- Median North Dakota county 48.5
Share 2 in or larger of sized reports
- Mountrail County 9%
- Median North Dakota county 9%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 1 | 1 | |||||||||||
| 2025 | 2 | 1 | 3 | ||||||||||
| 2024 | 9 | 1 | 10 | ||||||||||
| 2023 | 1 | 3 | 4 | ||||||||||
| 2022 | 2 | 1 | 3 | ||||||||||
| 2021 | 1 | 1 | 2 | ||||||||||
| 2020 | 6 | 2 | 8 | ||||||||||
| 2019 | 4 | 3 | 3 | 10 | |||||||||
| 2018 | 6 | 1 | 1 | 8 | |||||||||
| 2017 | 1 | 1 | 2 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Jul 5, 2026 | 1 | 1.00 in | — |
| Aug 7, 2025 | 1 | 1.00 in | — |
| Jul 29, 2025 | 1 | 1.00 in | — |
| Jul 25, 2025 | 1 | 1.00 in | — |
| Aug 6, 2024 | 1 | 1.25 in | — |
| Jul 14, 2024 | 2 | 2.00 in | — |
| Jul 12, 2024 | 7 | 1.75 in | — |
| Aug 1, 2023 | 3 | 1.75 in | — |
| Jun 8, 2023 | 1 | 1.25 in | — |
| Aug 23, 2022 | 1 | 1.00 in | — |
| Jul 18, 2022 | 1 | 1.25 in | — |
| Jul 2, 2022 | 1 | 1.00 in | — |
Largest hail on record
| Date | Size | Location | Damage | Time · source |
|---|---|---|---|---|
| Jul 6, 1971 | 4.50 insoftball | — | — | 17:20 local · NCEI |
| Jun 6, 2004 | 2.75 inbaseball | 6 S Stanley | — | 17:29 local · NCEI |
| Aug 18, 1995 | 2.75 inbaseball | Newtown | — | 04:00 local · NCEI |
| Sep 20, 2019 | 2.50 intennis ball | 0.46 E Blaisdell | — | 11:35 local · NCEI |
| Jun 21, 2016 | 2.50 intennis ball | 7.61 S Sanish | $10K | 20:33 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 39 21%
- 1–2 in 134 71%
- 2 in + 16 8%
Most recent reports
| Date | Size | Location | Time · source |
|---|---|---|---|
| Jul 5, 2026 | 1.00 inquarter | 5.74 ENE Lostwood | 17:25 local · NCEI |
| Aug 7, 2025 | 1.00 inquarter | 0.69 S Stanley | 20:03 local · NCEI |
| Jul 29, 2025 | 1.00 inquarter | 9.03 S Sanish | 15:55 local · NCEI |
| Jul 25, 2025 | 1.00 inquarter | 8.34 S Ross | 19:15 local · NCEI |
| Aug 6, 2024 | 1.25 inhalf dollar | 7.72 S Tagus | 19:37 local · NCEI |
| Jul 14, 2024 | 1.00 inquarter | 7.44 W Parshall Arpt | 22:15 local · NCEI |
| Jul 14, 2024 | 2.00 inhen egg | 3.32 NW New Town Arpt | 20:55 local · NCEI |
| Jul 12, 2024 | 1.75 ingolf ball | 7.38 E Epworth | 17:09 local · NCEI |
| Jul 12, 2024 | 1.75 ingolf ball | 6.24 S Palermo | 16:55 local · NCEI |
| Jul 12, 2024 | 1.00 inquarter | 3.49 S Stanley Muni Arpt | 16:41 local · NCEI |
| Jul 12, 2024 | 1.00 inquarter | Stanley Muni Arpt | 16:37 local · NCEI |
| Jul 12, 2024 | 1.50 inping pong ball | 3.09 SW Ross | 16:17 local · NCEI |
Cities and towns in Mountrail County
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 |
|---|---|---|---|
| Ross | 8 | 8 | Jul 12, 2024 |
| White Earth | 8 | 7 | Jul 12, 2024 |
| Palermo | 6 | 5 | Jun 9, 2016 |
| Plaza | 4 | 4 | Jun 1, 2018 |
Questions about hail in Mountrail County
How often does it hail in Mountrail County, North Dakota?
189 hail reports have been logged in Mountrail County since 1964. Over the 20 years 2006–2025 that averages 5.7 reports a year. That ranks #20 of 54 North Dakota counties by number of reports.
When is hail season in Mountrail County?
Most reports come in July, June, August. July alone accounts for 41% of all reports.
What is the largest hail recorded in Mountrail County?
4.50 in (softball size) on July 6, 1971. 8% of reports here were 2 inches or larger.
When did it last hail in Mountrail County?
The most recent report in this data is from July 5, 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 Mountrail County had in the last five years?
12 separate days with hail reports since November 3, 2021, adding up to 21 reports. The most recent was July 5, 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.