Hail History

Hail history for Thompson, North Dakota

NOAA hail reports in and within about 5 km (3 miles) of Thompson since 1997, with preliminary reports to November 5, 2026.

Readout · Thompson

Last hail
Aug 9, 2020
1.25 in, half dollar size
Hail days, last 5 years
0
since Nov 5, 2021 · 0 reports
Largest ever
2.00 in
hen egg · Aug 13, 2007

15 reports on 12 days since 1997 · #123 of 208 North Dakota places

Hail map · Thompson

Thompson Reynolds Grand Forks Grand Forks AFB Manvel Northwood 10 mi
  • Under 1 in
  • 1–1.75 in
  • 1.75–2.5 in
  • 2.5–4 in
  • 4 in +
  • No size
15 most recent reports with a location; Grand Forks County is shaded. Open street map

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What the record says about Thompson

The latest hail report in and around Thompson is from August 9, 2020, 1.25 in (half dollar size). There has been no hail report here in the five years since November 5, 2021.

Over the 20 years 2006–2025, Thompson logged 8 reports on 7 hail days, about 0.4 reports a year. That is about the same as the median North Dakota town on this site (0.4 a year) and ranks #123 of 208 North Dakota cities and towns on this site for all-time reports. Thompson accounts for 4% of the 395 reports filed in Grand Forks County.

7% 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 2.00 in (hen egg) on August 13, 2007 near Thompson.

Reports held about level in 2016–2025 (4) compared with 2006–2015 (4). The busiest year was 2005, with 3 reports on 2 days. Hail here peaks in August (53% of reports); 27% fall between April and June.

Reports a year 2006–2025 average

  • Thompson 0.4
  • Grand Forks County 9.6
  • Median North Dakota town on this site 0.4

Hail days 2006–2025

  • Thompson 7
  • Grand Forks County 72
  • Median North Dakota town on this site 7

Share 2 in or larger of sized reports

  • Thompson 7%
  • Grand Forks County 5%
  • Median North Dakota town on this site 8%

Hail over time

0123 1997: 1 reports, largest 0.75 in 2000 2004: 3 reports, largest 1.00 in 2005: 3 reports, largest 1.25 in 2005 2007: 2 reports, largest 2.00 in 2010 2012: 1 reports, largest 0.75 in 2015: 1 reports, largest 0.75 in 2015 2016: 1 reports, largest 1.25 in 2017: 1 reports, largest 1.00 in 2018: 1 reports, largest 1.25 in 2020: 1 reports, largest 1.25 in 2020 2025
Reports per year, 1997–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.
02468 Jan Feb Mar Apr May: 2 reports (13%) May June: 2 reports (13%) Jun July: 2 reports (13%) Jul August: 8 reports (53%) Aug September: 1 reports (7%) Sep Oct Nov Dec
All 15 reports by calendar month.
Reports per month, 2017–2026. Darker cells had more reports.
YearJanFebMarAprMayJunJulAugSepOctNovDecTotal
2026 0
2025 0
2024 0
2023 0
2022 0
2021 0
2020 1 1
2019 0
2018 1 1
2017 1 1

Largest hail on record

Largest hail reports in Thompson
Date Size Location County Time · source
Aug 13, 2007 2.00 inhen egg Thompson Grand Forks 15:08 local · NCEI
Aug 13, 2007 1.75 ingolf ball 3.49 S Thompson Grand Forks 15:34 local · NCEI
Aug 9, 2020 1.25 inhalf dollar 1.66 NE Thompson Grand Forks 13:20 local · NCEI
Aug 31, 2018 1.25 inhalf dollar 1.46 NNE Thompson Grand Forks 20:25 local · NCEI
Aug 23, 2016 1.25 inhalf dollar 3.32 WNW Thompson Grand Forks 01:40 local · NCEI

Size of every report

Most recent reports

Most recent hail reports in Thompson
Date Size Location County Time · source
Aug 9, 2020 1.25 inhalf dollar 1.66 NE Thompson Grand Forks 13:20 local · NCEI
Aug 31, 2018 1.25 inhalf dollar 1.46 NNE Thompson Grand Forks 20:25 local · NCEI
Jul 4, 2017 1.00 inquarter 1.16 NW Thompson Grand Forks 18:56 local · NCEI
Aug 23, 2016 1.25 inhalf dollar 3.32 WNW Thompson Grand Forks 01:40 local · NCEI
Jul 12, 2015 0.75 inpenny 2.12 SSW Thompson Grand Forks 15:25 local · NCEI
Jun 20, 2012 0.75 inpenny 1.46 NNW Thompson Grand Forks 18:25 local · NCEI
Aug 13, 2007 1.75 ingolf ball 3.49 S Thompson Grand Forks 15:34 local · NCEI
Aug 13, 2007 2.00 inhen egg Thompson Grand Forks 15:08 local · NCEI
Jun 23, 2005 0.75 inpenny Thompson Grand Forks 16:10 local · NCEI
May 8, 2005 1.00 inquarter Thompson Grand Forks 16:23 local · NCEI
May 8, 2005 1.25 inhalf dollar Thompson Grand Forks 16:15 local · NCEI
Aug 29, 2004 0.75 inpenny 1 E Thompson Grand Forks 15:31 local · NCEI

Hail history near Thompson

Questions about hail in Thompson

How often does it hail in Thompson, North Dakota?

15 hail reports have been logged in and within about 5 km (3 miles) of Thompson since 1997. Over the 20 years 2006–2025 that averages 0.4 reports a year. That ranks #123 of 208 North Dakota places by number of reports.

When is hail season in Thompson?

Most reports come in August, May, June. August alone accounts for 53% of all reports.

What is the largest hail recorded in Thompson?

2.00 in (hen egg size) on August 13, 2007 near Thompson. 7% of reports here were 2 inches or larger.

When did it last hail in Thompson?

The most recent report in this data is from August 9, 2020 (1.25 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 5, 2026.

How many hail storms has Thompson had in the last five years?

None: there has been no hail report in and within about 5 km (3 miles) of Thompson since November 5, 2021. The last one was on August 9, 2020.

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.