Hail History

Hail history for Cook County, Minnesota

Every NOAA hail report filed in Cook County since 1984, with preliminary National Weather Service reports to November 3, 2026.

Readout · Cook County

Last hail
Jul 25, 2023
1.00 in, quarter size
Hail days, last 5 years
2
since Nov 3, 2021 · 3 reports
Largest ever
3.00 in
teacup · Jun 25, 1984

25 reports on 21 days since 1984 · #87 of 88 Minnesota counties

Hail map · Cook County

20 mi
  • Under 1 in
  • 1–1.75 in
  • 1.75–2.5 in
  • 2.5–4 in
  • 4 in +
  • No size
25 most recent reports with a location. Dot size and colour follow hail size. Open street map

For homeowners

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What the record says about Cook County

The latest hail report in Cook County is from July 25, 2023, 1.00 in (quarter size). Since November 3, 2021 there have been 2 separate hail days; the biggest stones in that time were 1.00 in on July 25, 2023.

Over the 20 years 2006–2025, Cook County logged 19 reports on 15 hail days, about 0.9 reports a year. That is 24% of the median Minnesota county (3.9 a year) and ranks #87 of 88 Minnesota counties for all-time reports. Cook County holds 0% of all 15,925 hail reports in Minnesota.

4% of reports with a size were 2 inches (hen egg) or larger, against 7% for the median Minnesota county. The largest hail on record here is 3.00 in (teacup) on June 25, 1984.

Reports held about level in 2016–2025 (9) compared with 2006–2015 (10). The busiest year was 2015, with 4 reports on 1 day. Hail here peaks in July (24% of reports); 40% fall between April and June.

Reports a year 2006–2025 average

  • Cook County 0.9
  • Median Minnesota county 3.9

Hail days 2006–2025

  • Cook County 15
  • Median Minnesota county 42

Share 2 in or larger of sized reports

  • Cook County 4%
  • Median Minnesota county 7%

Hail over time

01234 1984: 1 reports, largest 3.00 in 1985: 1 reports, largest 1.00 in 1988: 1 reports, largest 1.50 in 1990 1998: 1 reports, largest 0.75 in 2000: 1 reports, largest 1.00 in 2000 2003: 1 reports, largest 0.75 in 2006: 3 reports, largest 1.00 in 2010 2011: 2 reports, largest 0.75 in 2014: 1 reports, largest 1.00 in 2015: 4 reports, largest 1.00 in 2016: 1 reports, largest 0.75 in 2017: 1 reports, largest 0.75 in 2020: 1 reports, largest 0.88 in 2020 2021: 3 reports, largest 1.75 in 2022: 2 reports, largest 1.00 in 2023: 1 reports, largest 1.00 in
Reports per year, 1984–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.
0246 Jan Feb Mar April: 1 reports (4%) Apr May: 4 reports (16%) May June: 5 reports (20%) Jun July: 6 reports (24%) Jul August: 6 reports (24%) Aug September: 2 reports (8%) Sep October: 1 reports (4%) Oct Nov Dec
All 25 reports by calendar month.
Reports per month, 2017–2026. Darker cells had more reports.
YearJanFebMarAprMayJunJulAugSepOctNovDecTotal
2026 0
2025 0
2024 0
2023 1 1
2022 2 2
2021 21 3
2020 1 1
2019 0
2018 0
2017 1 1

Hail days since Nov 3, 2021

DateReportsLargestStorm page
Jul 25, 2023 1 1.00 in —
May 30, 2022 2 1.00 in —

Largest hail on record

Largest hail reports in Cook County
Date Size Location Time · source
Jun 25, 1984 3.00 inteacup — 20:00 local · NCEI
Oct 10, 2021 1.75 ingolf ball 14.22 NW Marais 16:41 local · NCEI
Aug 16, 1988 1.50 inping pong ball — 18:30 local · NCEI
Jun 8, 2021 1.25 inhalf dollar 6.92 N Lutsen 04:10 local · NCEI
Jul 25, 2023 1.00 inquarter 3.86 ENE Lutsen 21:20 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

Most recent reports

Most recent hail reports in Cook County
Date Size Location Time · source
Jul 25, 2023 1.00 inquarter 3.86 ENE Lutsen 21:20 local · NCEI
May 30, 2022 1.00 inquarter 1.85 E Hovland 06:30 local · NCEI
May 30, 2022 1.00 inquarter Marais 05:59 local · NCEI
Oct 10, 2021 1.75 ingolf ball 14.22 NW Marais 16:41 local · NCEI
Jun 30, 2021 1.00 inquarter 6.82 WSW Hovland 14:50 local · NCEI
Jun 8, 2021 1.25 inhalf dollar 6.92 N Lutsen 04:10 local · NCEI
Jul 19, 2020 0.88 innickel 5.49 ENE Grand Portage 00:03 local · NCEI
Sep 2, 2017 0.75 inpenny 1.46 NNE Lutsen 16:47 local · NCEI
Sep 6, 2016 0.75 inpenny 4.54 NNE Marais 00:50 local · NCEI
Aug 8, 2015 1.00 inquarter 19.12 NNW Marais 18:54 local · NCEI
Aug 8, 2015 0.75 inpenny 22.98 NNW Marais 18:41 local · NCEI
Aug 8, 2015 0.75 inpenny 20.92 NNW Marais 18:40 local · NCEI

Smaller places with fewer than 10 reports

These places have too few reports for a page of their own, so their record lives here.

PlaceReportsHail daysLatest
Lutsen55Jul 25, 2023
Grand Marais22May 30, 2022

Questions about hail in Cook County

How often does it hail in Cook County, Minnesota?

25 hail reports have been logged in Cook County since 1984. Over the 20 years 2006–2025 that averages 0.9 reports a year. That ranks #87 of 88 Minnesota counties by number of reports.

When is hail season in Cook County?

Most reports come in July, August, June. July alone accounts for 24% of all reports.

What is the largest hail recorded in Cook County?

3.00 in (teacup size) on June 25, 1984. 4% of reports here were 2 inches or larger.

When did it last hail in Cook County?

The most recent report in this data is from July 25, 2023 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

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

2 separate days with hail reports since November 3, 2021, adding up to 3 reports. The most recent was July 25, 2023.

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.