Hail History

Hail history for Sheridan County, Montana

Every NOAA hail report filed in Sheridan County since 1957, with preliminary National Weather Service reports to November 3, 2026.

Readout · Sheridan County

Last hail
Sep 12, 2025
1.00 in, quarter size
Hail days, last 5 years
5
since Nov 3, 2021 · 7 reports
Largest ever
3.00 in
teacup · Jul 2, 1971

197 reports on 107 days since 1957 · #17 of 57 Montana counties

Hail map · Sheridan County

Plentywood Antelope Medicine Lake Outlook 10 mi
  • Under 1 in
  • 1–1.75 in
  • 1.75–2.5 in
  • 2.5–4 in
  • 4 in +
  • No size
191 most recent reports with a location. Dot size and colour follow hail size. Open street map

For homeowners

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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 Sheridan County is from September 12, 2025. A local roofer can check and document it at no cost.

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What the record says about Sheridan County

The latest hail report in Sheridan County is from September 12, 2025, 1.00 in (quarter size). Since November 3, 2021 there have been 5 separate hail days; the biggest stones in that time were 2.00 in on August 25, 2024.

Over the 20 years 2006–2025, Sheridan County logged 119 reports on 56 hail days, about 6.0 reports a year. That is about twice the median Montana county (3.0 a year) and ranks #17 of 57 Montana counties for all-time reports. Sheridan County holds 2% of all 8,453 hail reports in Montana.

6% of reports with a size were 2 inches (hen egg) or larger, against 7% for the median Montana county. The largest hail on record here is 3.00 in (teacup) on July 2, 1971.

Reports were down 55% in 2016–2025 (37) compared with 2006–2015 (82). The busiest year was 2007, with 22 reports on 5 days. Hail here peaks in July (42% of reports); 32% fall between April and June.

Reports a year 2006–2025 average

  • Sheridan County 6.0
  • Median Montana county 3.0

Hail days 2006–2025

  • Sheridan County 56
  • Median Montana county 31

Share 2 in or larger of sized reports

  • Sheridan County 6%
  • Median Montana county 7%

Hail over time

0102030 1957: 2 reports, largest 1.00 in 1959: 2 reports, largest 1.50 in 1960 1965: 1 reports, largest 3.00 in 1968: 1 reports, largest 2.50 in 1969: 1 reports, largest 2.00 in 1970 1971: 1 reports, largest 3.00 in 1976: 2 reports, largest 1.50 in 1978: 1 reports, largest 2.50 in 1980 1982: 1 reports, largest 1.00 in 1990 1994: 1 reports, largest 0.75 in 1995: 5 reports, largest 0.75 in 1996: 3 reports, largest 1.75 in 1997: 1 reports, largest 0.75 in 1998: 10 reports, largest 1.75 in 1999: 6 reports, largest 0.88 in 2000: 11 reports, largest 1.75 in 2000 2001: 8 reports, largest 1.00 in 2002: 3 reports, largest 1.00 in 2003: 3 reports, largest 0.88 in 2004: 3 reports, largest 1.75 in 2005: 12 reports, largest 2.50 in 2006: 5 reports, largest 1.75 in 2007: 22 reports, largest 2.00 in 2008: 8 reports, largest 1.00 in 2009: 3 reports, largest 2.00 in 2010: 5 reports, largest 1.75 in 2010 2011: 12 reports, largest 1.50 in 2012: 6 reports, largest 1.50 in 2013: 4 reports, largest 1.00 in 2014: 13 reports, largest 2.75 in 2015: 4 reports, largest 1.75 in 2016: 1 reports, largest 0.88 in 2017: 2 reports, largest 1.75 in 2018: 9 reports, largest 1.75 in 2019: 9 reports, largest 1.75 in 2020: 3 reports, largest 1.75 in 2020 2021: 6 reports, largest 1.75 in 2022: 3 reports, largest 1.75 in 2024: 2 reports, largest 2.00 in 2025: 2 reports, largest 1.50 in
Reports per year, 1957–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.
0255075100 Jan Feb Mar Apr May: 12 reports (6%) May June: 52 reports (26%) Jun July: 83 reports (42%) Jul August: 41 reports (21%) Aug September: 9 reports (5%) Sep Oct Nov Dec
All 197 reports by calendar month.
Reports per month, 2017–2026. Darker cells had more reports.
YearJanFebMarAprMayJunJulAugSepOctNovDecTotal
2026 0
2025 2 2
2024 2 2
2023 0
2022 3 3
2021 51 6
2020 3 3
2019 351 9
2018 54 9
2017 2 2

Hail days since Nov 3, 2021

DateReportsLargestStorm page
Sep 12, 2025 2 1.50 in —
Aug 25, 2024 1 2.00 in —
Aug 24, 2024 1 1.75 in —
Jul 5, 2022 2 1.75 in —
Jul 1, 2022 1 1.00 in —

Largest hail on record

Largest hail reports in Sheridan County
Date Size Location Damage Time · source
Jul 2, 1971 3.00 inteacup — — 18:05 local · NCEI
Jul 22, 1965 3.00 inteacup — — 11:00 local · NCEI
May 26, 2014 2.75 inbaseball 0.83 SSE Plentywood — 13:50 local · NCEI
May 26, 2014 2.50 intennis ball 0.83 SSE Plentywood — 14:10 local · NCEI
Aug 17, 2005 2.50 intennis ball 7 N Outlook $15K 20:00 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 Sheridan County
Date Size Location Time · source
Sep 12, 2025 1.00 inquarter 3.89 NE Dagmar 18:35 local · NCEI
Sep 12, 2025 1.50 inping pong ball 4.17 S Redstone 16:36 local · NCEI
Aug 25, 2024 2.00 inhen egg 2.81 ENE Outlook 00:46 local · NCEI
Aug 24, 2024 1.75 ingolf ball 6.26 WNW Outlook 18:56 local · NCEI
Jul 5, 2022 1.00 inquarter Medicine Lake 19:52 local · NCEI
Jul 5, 2022 1.75 ingolf ball Medicine Lake 19:20 local · NCEI
Jul 1, 2022 1.00 inquarter 13.27 W Reserve 19:31 local · NCEI
Jul 8, 2021 1.00 inquarter 12.45 S Redstone Hill Dot 13:30 local · NCEI
Jun 10, 2021 1.50 inping pong ball 3.08 SE Antelope 15:42 local · NCEI
Jun 10, 2021 1.00 inquarter 0.83 NNW Antelope 15:13 local · NCEI
Jun 10, 2021 1.00 inquarter 0.83 NNW Outlook 15:00 local · NCEI
Jun 10, 2021 1.00 inquarter 7.34 W Reserve 15:00 local · NCEI

Cities and towns in Sheridan County

PlaceReportsLargest
Plentywood202.75 in
Antelope142.50 in
Medicine Lake113.00 in
Outlook102.50 in

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
Reserve97Sep 3, 2014
Redstone77Jun 10, 2021
Westby66Jul 20, 2014
Homestead33Jul 6, 2009

Questions about hail in Sheridan County

How often does it hail in Sheridan County, Montana?

197 hail reports have been logged in Sheridan County since 1957. Over the 20 years 2006–2025 that averages 6.0 reports a year. That ranks #17 of 57 Montana counties by number of reports.

When is hail season in Sheridan County?

Most reports come in July, June, August. July alone accounts for 42% of all reports.

What is the largest hail recorded in Sheridan County?

3.00 in (teacup size) on July 2, 1971. 6% of reports here were 2 inches or larger.

When did it last hail in Sheridan County?

The most recent report in this data is from September 12, 2025 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

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

5 separate days with hail reports since November 3, 2021, adding up to 7 reports. The most recent was September 12, 2025.

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.