Hail History

Hail history for Pompeys Pillar, Montana

NOAA hail reports in and within about 5 km (3 miles) of Pompeys Pillar since 1999, with preliminary reports to November 3, 2026.

Readout · Pompeys Pillar

Last hail
Jun 20, 2019
0.75 in, penny size
Hail days, last 5 years
0
since Nov 3, 2021 · 0 reports
Largest ever
2.75 in
baseball · Jul 27, 2016

10 reports on 9 days since 1999 · #108 of 111 Montana places

Hail map · Pompeys Pillar

Pompeys Pillar Worden Huntley Shepherd Hardin Lockwood Billings Crow Agency 25 mi
  • Under 1 in
  • 1–1.75 in
  • 1.75–2.5 in
  • 2.5–4 in
  • 4 in +
  • No size
10 most recent reports with a location; Yellowstone County is shaded. Open street map

For homeowners

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What the record says about Pompeys Pillar

The latest hail report in and around Pompeys Pillar is from June 20, 2019, 0.75 in (penny size). There has been no hail report here in the five years since November 3, 2021.

Over the 20 years 2006–2025, Pompeys Pillar logged 4 reports on 3 hail days, about 0.2 reports a year. That is about half the median Montana town on this site (0.5 a year) and ranks #108 of 111 Montana cities and towns on this site for all-time reports. Pompeys Pillar accounts for 2% of the 512 reports filed in Yellowstone County.

20% of reports with a size were 2 inches (hen egg) or larger, against 8% for the median Montana town on this site. The largest hail on record here is 2.75 in (baseball) on July 27, 2016 near 1.18 SE Pompeys Pillar.

The busiest year was 2000, with 3 reports on 3 days. Hail here peaks in July (70% of reports); 30% fall between April and June.

Reports a year 2006–2025 average

  • Pompeys Pillar 0.2
  • Yellowstone County 15.4
  • Median Montana town on this site 0.5

Hail days 2006–2025

  • Pompeys Pillar 3
  • Yellowstone County 80
  • Median Montana town on this site 7

Share 2 in or larger of sized reports

  • Pompeys Pillar 20%
  • Yellowstone County 9%
  • Median Montana town on this site 8%

Hail over time

0123 1999: 1 reports, largest 0.88 in 2000: 3 reports, largest 1.00 in 2000 2001: 1 reports, largest 1.25 in 2004: 1 reports, largest 0.88 in 2005 2010 2011: 1 reports, largest 1.00 in 2015 2016: 2 reports, largest 2.75 in 2019: 1 reports, largest 0.75 in 2020 2025
Reports per year, 1999–2026. 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 (20%) May June: 1 reports (10%) Jun July: 7 reports (70%) Jul Aug Sep Oct Nov Dec
All 10 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 0
2019 1 1
2018 0
2017 0

Largest hail on record

Largest hail reports in Pompeys Pillar
Date Size Location County Time · source
Jul 27, 2016 2.75 inbaseball 1.18 SE Pompeys Pillar Yellowstone 14:36 local · NCEI
Jul 27, 2016 2.50 intennis ball 0.69 S Pompeys Pillar Yellowstone 14:45 local · NCEI
Jul 19, 2001 1.25 inhalf dollar 43 SE Roundup Musselshell 18:50 local · NCEI
Jul 14, 2011 1.00 inquarter 1.18 SE Pompeys Pillar Yellowstone 16:17 local · NCEI
May 29, 2000 1.00 inquarter Pompeys Pillar Yellowstone 23:55 local · NCEI

Size of every report

Most recent reports

Most recent hail reports in Pompeys Pillar
Date Size Location County Time · source
Jun 20, 2019 0.75 inpenny 1.18 SE Pompeys Pillar Yellowstone 20:40 local · NCEI
Jul 27, 2016 2.50 intennis ball 0.69 S Pompeys Pillar Yellowstone 14:45 local · NCEI
Jul 27, 2016 2.75 inbaseball 1.18 SE Pompeys Pillar Yellowstone 14:36 local · NCEI
Jul 14, 2011 1.00 inquarter 1.18 SE Pompeys Pillar Yellowstone 16:17 local · NCEI
Jul 11, 2004 0.88 innickel Pompeys Pillar Yellowstone 18:12 local · NCEI
Jul 19, 2001 1.25 inhalf dollar 43 SE Roundup Musselshell 18:50 local · NCEI
Jul 9, 2000 0.75 inpenny Pompeys Pillar Yellowstone 17:48 local · NCEI
Jul 4, 2000 0.75 inpenny Pompeys Pillar Yellowstone 15:43 local · NCEI
May 29, 2000 1.00 inquarter Pompeys Pillar Yellowstone 23:55 local · NCEI
May 21, 1999 0.88 innickel Pompeys Pillar Yellowstone 14:43 local · NCEI

Hail history near Pompeys Pillar

Questions about hail in Pompeys Pillar

How often does it hail in Pompeys Pillar, Montana?

10 hail reports have been logged in and within about 5 km (3 miles) of Pompeys Pillar since 1999. Over the 20 years 2006–2025 that averages 0.2 reports a year. That ranks #108 of 111 Montana places by number of reports.

When is hail season in Pompeys Pillar?

Most reports come in July, May, June. July alone accounts for 70% of all reports.

What is the largest hail recorded in Pompeys Pillar?

2.75 in (baseball size) on July 27, 2016 near 1.18 SE Pompeys Pillar. 20% of reports here were 2 inches or larger.

When did it last hail in Pompeys Pillar?

The most recent report in this data is from June 20, 2019 (0.75 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

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

None: there has been no hail report in and within about 5 km (3 miles) of Pompeys Pillar since November 3, 2021. The last one was on June 20, 2019.

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.