Hail history for Williams County, North Dakota
Every NOAA hail report filed in Williams County since 1957, with preliminary National Weather Service reports to November 3, 2026.
Readout · Williams County
- Last hail
- Sep 2, 2026
- 1.00 in, quarter size · preliminary
- Hail days, last 5 years
- 14
- since Nov 3, 2021 · 26 reports
- Largest ever
- 3.00 in
- teacup · Jul 18, 2022
232 reports on 116 days since 1957 · #14 of 54 North Dakota counties
Hail map · Williams County
- 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 Williams County is from September 2, 2026. A local roofer can check and document it at no cost.
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What the record says about Williams County
The latest hail report in Williams County is from September 2, 2026, 1.00 in (quarter size). Since November 3, 2021 there have been 14 separate hail days; the biggest stones in that time were 3.00 in on July 18, 2022.
Over the 20 years 2006–2025, Williams County logged 162 reports on 68 hail days, about 8.1 reports a year. That is 78% more than the median North Dakota county (4.5 a year) and ranks #14 of 54 North Dakota counties for all-time reports. Williams County holds 2% of all 10,117 hail reports in North Dakota.
5% 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 3.00 in (teacup) on July 18, 2022 near 1.46 NNE Williston.
Reports were down 36% in 2016–2025 (63) compared with 2006–2015 (99). The busiest year was 2014, with 22 reports on 5 days. Hail here peaks in July (43% of reports); 37% fall between April and June.
Reports a year 2006–2025 average
- Williams County 8.1
- Median North Dakota county 4.5
Hail days 2006–2025
- Williams County 68
- Median North Dakota county 48.5
Share 2 in or larger of sized reports
- Williams County 5%
- Median North Dakota county 9%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 2 | 1 | 3 | ||||||||||
| 2025 | 3 | 4 | 2 | 9 | |||||||||
| 2024 | 1 | 2 | 3 | ||||||||||
| 2023 | 3 | 2 | 5 | ||||||||||
| 2022 | 1 | 5 | 6 | ||||||||||
| 2021 | 6 | 1 | 7 | ||||||||||
| 2020 | 2 | 1 | 3 | ||||||||||
| 2019 | 5 | 5 | |||||||||||
| 2018 | 4 | 12 | 16 | ||||||||||
| 2017 | 0 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Sep 2, 2026 | 1 | 1.00 in | View |
| Jun 9, 2026 | 1 | 1.00 in | — |
| Jun 7, 2026 | 1 | 1.75 in | — |
| Aug 7, 2025 | 2 | 1.00 in | — |
| Jul 25, 2025 | 4 | 1.50 in | — |
| Jun 18, 2025 | 3 | 1.00 in | — |
| Jul 14, 2024 | 1 | 1.50 in | — |
| Jul 12, 2024 | 1 | 1.00 in | — |
| Jun 14, 2024 | 1 | 1.50 in | — |
| Aug 1, 2023 | 2 | 1.50 in | — |
| May 25, 2023 | 3 | 1.25 in | — |
| Jul 18, 2022 | 4 | 3.00 in | — |
| Jul 5, 2022 | 1 | 0.75 in | — |
| Jun 9, 2022 | 1 | 0.88 in | — |
Largest hail on record
| Date | Size | Location | Damage | Time · source |
|---|---|---|---|---|
| Jul 18, 2022 | 3.00 inteacup | 1.46 NNE Williston | $500K | 22:37 local · NCEI |
| Jul 21, 2012 | 2.75 inbaseball | 8.49 NNW Trenton | — | 18:30 local · NCEI |
| Jun 10, 2021 | 2.50 intennis ball | 2.53 WSW Williston | $1.0 million | 20:36 local · NCEI |
| Jul 9, 2018 | 2.50 intennis ball | 11.8 SSW Bonetraill | — | 21:50 local · NCEI |
| May 26, 2014 | 2.50 intennis ball | 3.31 ENE Buford | $50K | 16:30 local · NCEI |
Size of every report
- Under 1 in 67 29%
- 1–2 in 154 66%
- 2 in + 11 5%
Most recent reports
| Date | Size | Location | Time · source |
|---|---|---|---|
| Sep 2, 2026 | 1.00 inquarter | Williston | 08:40 UTC · NWS prelim. |
| Jun 9, 2026 | 1.00 inquarter | 3.45 N Alamo | 17:03 local · NCEI |
| Jun 7, 2026 | 1.75 ingolf ball | 0.46 W Williston | 19:04 local · NCEI |
| Aug 7, 2025 | 1.00 inquarter | 0.83 SSW Epping | 19:12 local · NCEI |
| Aug 7, 2025 | 1.00 inquarter | Wildrose | 18:38 local · NCEI |
| Jul 25, 2025 | 1.00 inquarter | 0.46 W Williston | 18:11 local · NCEI |
| Jul 25, 2025 | 0.75 inpenny | 1.97 WSW (Isn)sloulin Fld Wil | 18:00 local · NCEI |
| Jul 25, 2025 | 1.50 inping pong ball | 0.83 SSW (Isn)sloulin Fld Wil | 17:44 local · NCEI |
| Jul 25, 2025 | 0.75 inpenny | 0.83 SSW (Isn)sloulin Fld Wil | 17:41 local · NCEI |
| Jun 18, 2025 | 1.00 inquarter | 1.66 NNE Williston | 17:00 local · NCEI |
| Jun 18, 2025 | 1.00 inquarter | 3.59 NE Bonetraill | 16:25 local · NCEI |
| Jun 18, 2025 | 0.88 innickel | 0.46 W Grenora | 16:15 local · NCEI |
Cities and towns in Williams 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 |
|---|---|---|---|
| Grenora | 9 | 7 | Jun 18, 2025 |
| Trenton | 9 | 8 | Jul 21, 2018 |
| Alamo | 8 | 8 | Jun 9, 2026 |
| Springbrook | 5 | 5 | Jul 9, 2018 |
| Blacktail | 4 | 4 | Jun 18, 2025 |
| Wildrose | 4 | 4 | Aug 7, 2025 |
| Long Creek | 2 | 2 | Sep 17, 2019 |
Questions about hail in Williams County
How often does it hail in Williams County, North Dakota?
232 hail reports have been logged in Williams County since 1957. Over the 20 years 2006–2025 that averages 8.1 reports a year. That ranks #14 of 54 North Dakota counties by number of reports.
When is hail season in Williams County?
Most reports come in July, June, August. July alone accounts for 43% of all reports.
What is the largest hail recorded in Williams County?
3.00 in (teacup size) on July 18, 2022 near 1.46 NNE Williston. 5% of reports here were 2 inches or larger.
When did it last hail in Williams County?
The most recent report in this data is from September 2, 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 Williams County had in the last five years?
14 separate days with hail reports since November 3, 2021, adding up to 26 reports. The most recent was September 2, 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.