Hail History

Hail history for Liberty County, Montana

Every NOAA hail report filed in Liberty County since 1956, with preliminary National Weather Service reports to November 3, 2026.

Readout · Liberty County

Last hail
Jun 25, 2026
1.50 in, ping pong ball size
Hail days, last 5 years
4
since Nov 3, 2021 · 5 reports
Largest ever
3.00 in
teacup · Aug 10, 1957

53 reports on 42 days since 1956 · #46 of 57 Montana counties

Hail map · Liberty County

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

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What the record says about Liberty County

The latest hail report in Liberty County is from June 25, 2026, 1.50 in (ping pong ball size). Since November 3, 2021 there have been 4 separate hail days; the biggest stones in that time were 2.50 in on July 6, 2022.

Over the 20 years 2006–2025, Liberty County logged 21 reports on 16 hail days, about 1.1 reports a year. That is 34% of the median Montana county (3.0 a year) and ranks #46 of 57 Montana counties for all-time reports. Liberty County holds 1% of all 8,453 hail reports in Montana.

8% 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 August 10, 1957.

Reports were down 25% in 2016–2025 (9) compared with 2006–2015 (12). The busiest year was 1996, with 6 reports on 2 days. Hail here peaks in June (36% of reports); 45% fall between April and June.

Reports a year 2006–2025 average

  • Liberty County 1.1
  • Median Montana county 3.0

Hail days 2006–2025

  • Liberty County 16
  • Median Montana county 31

Share 2 in or larger of sized reports

  • Liberty County 8%
  • Median Montana county 7%

Hail over time

0246 1956: 1 reports, largest 1.00 in 1957: 1 reports, largest 3.00 in 1959: 1 reports, largest 0.75 in 1960: 1 reports, largest 0.75 in 1960 1962: 1 reports, largest 1.75 in 1965: 1 reports, largest 1.00 in 1966: 1 reports, largest 1.75 in 1970 1980 1982: 1 reports, largest 1.00 in 1983: 1 reports, largest 1.75 in 1986: 1 reports, largest 1.00 in 1987: 1 reports, largest 1.75 in 1990 1993: 1 reports, largest 1.75 in 1994: 1 reports, largest 1.00 in 1995: 1 reports, largest 1.75 in 1996: 6 reports, largest 2.00 in 1998: 1 reports, largest 0.75 in 1999: 1 reports, largest 1.75 in 2000: 1 reports, largest 1.75 in 2000 2002: 1 reports, largest 1.25 in 2003: 2 reports, largest 1.00 in 2004: 3 reports, largest 0.88 in 2005: 2 reports, largest 1.00 in 2007: 4 reports, largest 0.88 in 2008: 4 reports, largest 1.75 in 2010 2012: 3 reports, largest 1.75 in 2013: 1 reports, largest 1.00 in 2016: 1 reports, largest 1.00 in 2017: 1 reports, largest 1.00 in 2020: 3 reports, largest 2.00 in 2020 2022: 4 reports, largest 2.50 in 2026: 1 reports, largest 1.50 in
Reports per year, 1956–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.
05101520 Jan Feb Mar Apr May: 5 reports (9%) May June: 19 reports (36%) Jun July: 18 reports (34%) Jul August: 8 reports (15%) Aug September: 3 reports (6%) Sep Oct Nov Dec
All 53 reports by calendar month.
Reports per month, 2017–2026. Darker cells had more reports.
YearJanFebMarAprMayJunJulAugSepOctNovDecTotal
2026 1 1
2025 0
2024 0
2023 0
2022 4 4
2021 0
2020 12 3
2019 0
2018 0
2017 1 1

Hail days since Nov 3, 2021

DateReportsLargestStorm page
Jun 25, 2026 1 1.50 in —
Jul 9, 2022 1 0.75 in —
Jul 8, 2022 2 1.50 in —
Jul 6, 2022 1 2.50 in —

Largest hail on record

Largest hail reports in Liberty County
Date Size Location Time · source
Aug 10, 1957 3.00 inteacup — 18:00 local · NCEI
Jul 6, 2022 2.50 intennis ball 10.5 SE Marias 18:23 local · NCEI
Jul 31, 2020 2.00 inhen egg 7 NE Lothair 17:55 local · NCEI
Jun 26, 1996 2.00 inhen egg Chester 23:00 local · NCEI
Jul 31, 2020 1.75 ingolf ball 8 ESE Lothair 18:10 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 Liberty County
Date Size Location Time · source
Jun 25, 2026 1.50 inping pong ball 5.04 WSW Marias 15:15 local · NCEI
Jul 9, 2022 0.75 inpenny 9.75 E Marias 16:47 local · NCEI
Jul 8, 2022 1.50 inping pong ball 10.74 SW Alma 17:15 local · NCEI
Jul 8, 2022 1.00 inquarter 7.16 SW Alma 17:15 local · NCEI
Jul 6, 2022 2.50 intennis ball 10.5 SE Marias 18:23 local · NCEI
Jul 31, 2020 1.75 ingolf ball 8 ESE Lothair 18:10 local · NCEI
Jul 31, 2020 2.00 inhen egg 7 NE Lothair 17:55 local · NCEI
Jun 13, 2020 1.50 inping pong ball 0.83 SSE Chester Lbrty Co Arp 18:43 local · NCEI
May 12, 2017 1.00 inquarter 0.83 SSE Chester Lbrty Co Arp 16:13 local · NCEI
Aug 7, 2016 1.00 inquarter 8 NW Whitlash 19:50 local · NCEI
Jun 19, 2013 1.00 inquarter 23 S Chester 20:10 local · NCEI
Jun 26, 2012 1.75 ingolf ball 20 NE Joplin 06:45 local · NCEI

Cities and towns in Liberty County

PlaceReportsLargest
Chester162.00 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
Joplin11Aug 1, 1982
Riverview Colony11Jul 8, 1965
Sage Creek Colony11Jul 19, 2007

Questions about hail in Liberty County

How often does it hail in Liberty County, Montana?

53 hail reports have been logged in Liberty County since 1956. Over the 20 years 2006–2025 that averages 1.1 reports a year. That ranks #46 of 57 Montana counties by number of reports.

When is hail season in Liberty County?

Most reports come in June, July, August. June alone accounts for 36% of all reports.

What is the largest hail recorded in Liberty County?

3.00 in (teacup size) on August 10, 1957. 8% of reports here were 2 inches or larger.

When did it last hail in Liberty County?

The most recent report in this data is from June 25, 2026 (1.50 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

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

4 separate days with hail reports since November 3, 2021, adding up to 5 reports. The most recent was June 25, 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.