Hail History

Hail history for Simms, Montana

NOAA hail reports in and within about 5 km (3 miles) of Simms since 1984, with preliminary reports to November 3, 2026.

Readout · Simms

Last hail
Jun 18, 2022
1.00 in, quarter size
Hail days, last 5 years
1
since Nov 3, 2021 · 1 report
Largest ever
1.00 in
quarter · Jun 18, 2022

10 reports on 9 days since 1984 · #110 of 111 Montana places

Hail map · Simms

Simms Sun River Vaughn Great Falls Malmstrom AFB 20 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; Cascade County is shaded. 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 Simms is from June 18, 2022. A local roofer can check and document it at no cost.

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What the record says about Simms

The latest hail report in and around Simms is from June 18, 2022, 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 June 18, 2022.

Over the 20 years 2006–2025, Simms logged 3 reports on 3 hail days, about 0.1 reports a year. That is 33% of the median Montana town on this site (0.5 a year) and ranks #110 of 111 Montana cities and towns on this site for all-time reports. Simms accounts for 4% of the 256 reports filed in Cascade 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 1.00 in (quarter) on June 18, 2022 near 0.69 S Simms.

The busiest year was 1996, with 3 reports on 2 days. Hail here peaks in June (70% of reports); 80% fall between April and June.

Reports a year 2006–2025 average

  • Simms 0.1
  • Cascade County 6.7
  • Median Montana town on this site 0.5

Hail days 2006–2025

  • Simms 3
  • Cascade County 51
  • Median Montana town on this site 7

Share 2 in or larger of sized reports

  • Simms 0%
  • Cascade County 7%
  • Median Montana town on this site 8%

Hail over time

0123 1984: 1 reports, largest 1.00 in 1990: 1 reports, largest 0.75 in 1990 1996: 3 reports, largest 1.00 in 1998: 1 reports, largest 0.75 in 2000 2004: 1 reports, largest 0.75 in 2007: 2 reports, largest 0.75 in 2010 2020 2022: 1 reports, largest 1.00 in
Reports per year, 1984–2026. 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: 1 reports (10%) May June: 7 reports (70%) Jun July: 2 reports (20%) 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 1 1
2021 0
2020 0
2019 0
2018 0
2017 0

Hail days since Nov 3, 2021

DateReportsLargestStorm page
Jun 18, 2022 1 1.00 in —

Largest hail on record

Largest hail reports in Simms
Date Size Location County Damage Time · source
Jun 18, 2022 1.00 inquarter 0.69 S Simms Cascade — 13:52 local · NCEI
Jun 15, 1996 1.00 inquarter Simms Cascade — 17:35 local · NCEI
Jun 15, 1996 1.00 inquarter Simms Cascade $2K 16:20 local · NCEI
May 15, 1984 1.00 inquarter — Cascade — 14:30 local · NCEI
Jul 7, 2007 0.75 inpenny Simms Cascade — 18:33 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 Simms
Date Size Location County Damage Time · source
Jun 18, 2022 1.00 inquarter 0.69 S Simms Cascade — 13:52 local · NCEI
Jul 7, 2007 0.75 inpenny Simms Cascade — 18:33 local · NCEI
Jun 16, 2007 0.75 inpenny 1 SSE Simms Cascade — 14:45 local · NCEI
Jun 23, 2004 0.75 inpenny Simms Cascade — 17:50 local · NCEI
Jul 4, 1998 0.75 inpenny 1 NE Simms Cascade — 18:00 local · NCEI
Jun 26, 1996 0.75 inpenny 5 S Fairfield Teton — 16:10 local · NCEI
Jun 15, 1996 1.00 inquarter Simms Cascade — 17:35 local · NCEI
Jun 15, 1996 1.00 inquarter Simms Cascade $2K 16:20 local · NCEI
Jun 28, 1990 0.75 inpenny — Cascade — 14:00 local · NCEI
May 15, 1984 1.00 inquarter — Cascade — 14:30 local · NCEI

Hail history near Simms

Questions about hail in Simms

How often does it hail in Simms, Montana?

10 hail reports have been logged in and within about 5 km (3 miles) of Simms since 1984. Over the 20 years 2006–2025 that averages 0.1 reports a year. That ranks #110 of 111 Montana places by number of reports.

When is hail season in Simms?

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

What is the largest hail recorded in Simms?

1.00 in (quarter size) on June 18, 2022 near 0.69 S Simms. 0% of reports here were 2 inches or larger.

When did it last hail in Simms?

The most recent report in this data is from June 18, 2022 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

How many hail storms has Simms 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 June 18, 2022.

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.