Hail History

Hail history for Forsyth, Montana

NOAA hail reports in and within about 5 km (3 miles) of Forsyth since 1976, with preliminary reports to November 3, 2026.

Readout · Forsyth

Last hail
Jul 6, 2020
1.50 in, ping pong ball size
Hail days, last 5 years
0
since Nov 3, 2021 · 0 reports
Largest ever
1.75 in
golf ball · Jul 18, 2010

24 reports on 18 days since 1976 · #36 of 111 Montana places

Hail map · Forsyth

Forsyth Colstrip Hysham 25 mi
  • Under 1 in
  • 1–1.75 in
  • 1.75–2.5 in
  • 2.5–4 in
  • 4 in +
  • No size
24 most recent reports with a location; Rosebud 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 Forsyth is from July 6, 2020. A local roofer can check and document it at no cost.

Phone line opening soon

What would a claim cost you? Try the hail claim calculator

Preview: this form is not connected yet. Nothing you enter is sent or stored.

Roofer? Get hail alerts for your area with StormScope

What the record says about Forsyth

The latest hail report in and around Forsyth is from July 6, 2020, 1.50 in (ping pong ball size). There has been no hail report here in the five years since November 3, 2021.

Over the 20 years 2006–2025, Forsyth logged 13 reports on 9 hail days, about 0.7 reports a year. That is 44% more than the median Montana town on this site (0.5 a year) and ranks #36 of 111 Montana cities and towns on this site for all-time reports. Forsyth accounts for 7% of the 333 reports filed in Rosebud 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 July 18, 2010 near 1.43 E Forsyth.

Reports were up 60% in 2016–2025 (8) compared with 2006–2015 (5). The busiest year was 2018, with 4 reports on 3 days. Hail here peaks in July (54% of reports); 46% fall between April and June.

Reports a year 2006–2025 average

  • Forsyth 0.7
  • Rosebud County 8.3
  • Median Montana town on this site 0.5

Hail days 2006–2025

  • Forsyth 9
  • Rosebud County 74
  • Median Montana town on this site 7

Share 2 in or larger of sized reports

  • Forsyth 0%
  • Rosebud County 9%
  • Median Montana town on this site 8%

Hail over time

01234 1976: 1 reports, largest 1.50 in 1980 1990 1991: 2 reports, largest 1.75 in 1992: 1 reports, largest 1.75 in 1996: 3 reports, largest 1.00 in 2000: 3 reports, largest 0.75 in 2000 2001: 1 reports, largest 0.75 in 2007: 1 reports, largest 1.75 in 2010: 3 reports, largest 1.75 in 2010 2014: 1 reports, largest 1.00 in 2016: 1 reports, largest 0.75 in 2018: 4 reports, largest 1.50 in 2019: 1 reports, largest 0.75 in 2020: 2 reports, largest 1.50 in 2020
Reports per year, 1976–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.
051015 Jan Feb Mar Apr May: 2 reports (8%) May June: 9 reports (38%) Jun July: 13 reports (54%) Jul Aug Sep Oct Nov Dec
All 24 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 2 2
2019 1 1
2018 22 4
2017 0

Largest hail on record

Largest hail reports in Forsyth
Date Size Location County Time · source
Jul 18, 2010 1.75 ingolf ball 1.43 E Forsyth Rosebud 16:50 local · NCEI
Jun 17, 2007 1.75 ingolf ball Forsyth Rosebud 03:42 local · NCEI
Jul 23, 1992 1.75 ingolf ball — Rosebud 22:30 local · NCEI
Jun 29, 1991 1.75 ingolf ball — Rosebud 23:20 local · NCEI
Jun 29, 1991 1.75 ingolf ball — Rosebud 18:05 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 Forsyth
Date Size Location County Time · source
Jul 6, 2020 1.50 inping pong ball 0.96 E Forsyth Rosebud 15:21 local · NCEI
Jul 6, 2020 0.75 inpenny 1.18 SW Forsyth Arpt Rosebud 15:20 local · NCEI
Jul 1, 2019 0.75 inpenny 1.68 NE Forsyth Rosebud 19:12 local · NCEI
Jul 2, 2018 1.50 inping pong ball 0.96 E Forsyth Rosebud 20:19 local · NCEI
Jul 2, 2018 1.00 inquarter 1.59 WSW Forsyth Rosebud 20:14 local · NCEI
Jun 7, 2018 0.75 inpenny 0.96 E Forsyth Rosebud 17:37 local · NCEI
Jun 1, 2018 1.50 inping pong ball 0.96 E Forsyth Rosebud 11:15 local · NCEI
May 21, 2016 0.75 inpenny 0.96 E Forsyth Rosebud 17:00 local · NCEI
Jun 3, 2014 1.00 inquarter 0.48 E Forsyth Rosebud 19:03 local · NCEI
Jul 18, 2010 1.75 ingolf ball 1.43 E Forsyth Rosebud 16:50 local · NCEI
Jul 18, 2010 1.00 inquarter 0.48 E Forsyth Rosebud 16:44 local · NCEI
Jul 18, 2010 1.00 inquarter 0.48 E Forsyth Rosebud 16:42 local · NCEI

Hail history near Forsyth

Questions about hail in Forsyth

How often does it hail in Forsyth, Montana?

24 hail reports have been logged in and within about 5 km (3 miles) of Forsyth since 1976. Over the 20 years 2006–2025 that averages 0.7 reports a year. That ranks #36 of 111 Montana places by number of reports.

When is hail season in Forsyth?

Most reports come in July, June, May. July alone accounts for 54% of all reports.

What is the largest hail recorded in Forsyth?

1.75 in (golf ball size) on July 18, 2010 near 1.43 E Forsyth. 0% of reports here were 2 inches or larger.

When did it last hail in Forsyth?

The most recent report in this data is from July 6, 2020 (1.50 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

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

None: there has been no hail report in and within about 5 km (3 miles) of Forsyth since November 3, 2021. The last one was on July 6, 2020.

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.