Hail History

Hail history for Dillon, Montana

NOAA hail reports in and within about 5 km (3 miles) of Dillon since 1970, with preliminary reports to November 3, 2026.

Readout · Dillon

Last hail
Sep 3, 2024
1.00 in, quarter size
Hail days, last 5 years
1
since Nov 3, 2021 · 1 report
Largest ever
1.75 in
golf ball · Aug 11, 2019

15 reports on 11 days since 1970 · #63 of 111 Montana places

Hail map · Dillon

Dillon 25 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; Beaverhead County is shaded. Open street map

For homeowners

Roof damage after hail? Get a free inspection

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 Dillon is from September 3, 2024. A local roofer can check and document it at no cost.

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What the record says about Dillon

The latest hail report in and around Dillon is from September 3, 2024, 1.00 in (quarter size). Since November 3, 2021 there has been one hail day; the biggest stones in that time were 1.00 in on September 3, 2024.

Over the 20 years 2006–2025, Dillon logged 8 reports on 5 hail days, about 0.4 reports a year. That is 11% less than the median Montana town on this site (0.5 a year) and ranks #63 of 111 Montana cities and towns on this site for all-time reports. Dillon accounts for 26% of the 58 reports filed in Beaverhead County.

0% 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 1.75 in (golf ball) on August 11, 2019 near 3 WNW Dillon.

Reports held about level in 2016–2025 (4) compared with 2006–2015 (4). The busiest year was 2007, with 4 reports on 2 days. Hail here peaks in August (60% of reports); 7% fall between April and June.

Reports a year 2006–2025 average

  • Dillon 0.4
  • Beaverhead County 1.2
  • Median Montana town on this site 0.5

Hail days 2006–2025

  • Dillon 5
  • Beaverhead County 16
  • Median Montana town on this site 7

Share 2 in or larger of sized reports

  • Dillon 0%
  • Beaverhead County 7%
  • Median Montana town on this site 8%

Hail over time

01234 1970: 1 reports, largest 1.00 in 1970 1980 1987: 1 reports, largest 0.75 in 1990 1999: 2 reports, largest 0.88 in 2000 2002: 2 reports, largest 0.88 in 2004: 1 reports, largest 0.75 in 2007: 4 reports, largest 1.00 in 2010 2016: 1 reports, largest 1.00 in 2019: 2 reports, largest 1.75 in 2020 2024: 1 reports, largest 1.00 in
Reports per year, 1970–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.
0369 Jan Feb Mar Apr May June: 1 reports (7%) Jun July: 4 reports (27%) Jul August: 9 reports (60%) 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 1 1
2023 0
2022 0
2021 0
2020 0
2019 2 2
2018 0
2017 0

Hail days since Nov 3, 2021

DateReportsLargestStorm page
Sep 3, 2024 1 1.00 in —

Largest hail on record

Largest hail reports in Dillon
Date Size Location County Time · source
Aug 11, 2019 1.75 ingolf ball 3 WNW Dillon Beaverhead 12:30 local · NCEI
Aug 11, 2019 1.50 inping pong ball Dillon Beaverhead 13:11 local · NCEI
Sep 3, 2024 1.00 inquarter 0.97 E Dillon Beaverhead 13:45 local · NCEI
Jul 10, 2016 1.00 inquarter 4 SSE Dillon Beaverhead 12:25 local · NCEI
Aug 18, 2007 1.00 inquarter 3 N Dillon Beaverhead 13:58 local · NCEI

Size of every report

Most recent reports

Most recent hail reports in Dillon
Date Size Location County Time · source
Sep 3, 2024 1.00 inquarter 0.97 E Dillon Beaverhead 13:45 local · NCEI
Aug 11, 2019 1.50 inping pong ball Dillon Beaverhead 13:11 local · NCEI
Aug 11, 2019 1.75 ingolf ball 3 WNW Dillon Beaverhead 12:30 local · NCEI
Jul 10, 2016 1.00 inquarter 4 SSE Dillon Beaverhead 12:25 local · NCEI
Aug 18, 2007 0.88 innickel 3 N Dillon Beaverhead 15:25 local · NCEI
Aug 18, 2007 0.88 innickel Dillon Beaverhead 13:58 local · NCEI
Aug 18, 2007 1.00 inquarter 3 N Dillon Beaverhead 13:58 local · NCEI
Jul 17, 2007 0.88 innickel 3 N Dillon Beaverhead 20:30 local · NCEI
Aug 4, 2004 0.75 inpenny Dillon Beaverhead 16:50 local · NCEI
Aug 21, 2002 0.88 innickel Dillon Beaverhead 16:35 local · NCEI
Jul 23, 2002 0.75 inpenny Dillon Beaverhead 15:53 local · NCEI
Aug 13, 1999 0.88 innickel Dillon Beaverhead 13:50 local · NCEI

Questions about hail in Dillon

How often does it hail in Dillon, Montana?

15 hail reports have been logged in and within about 5 km (3 miles) of Dillon since 1970. Over the 20 years 2006–2025 that averages 0.4 reports a year. That ranks #63 of 111 Montana places by number of reports.

When is hail season in Dillon?

Most reports come in August, July, June. August alone accounts for 60% of all reports.

What is the largest hail recorded in Dillon?

1.75 in (golf ball size) on August 11, 2019 near 3 WNW Dillon. 0% of reports here were 2 inches or larger.

When did it last hail in Dillon?

The most recent report in this data is from September 3, 2024 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

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

1 separate days with hail reports since November 3, 2021, adding up to 1 reports. The most recent was September 3, 2024.

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.