Hail history for Lewistown, Montana
NOAA hail reports in and within about 5 km (3 miles) of Lewistown since 1956, with preliminary reports to November 3, 2026.
Readout · Lewistown
- Last hail
- Jun 15, 2025
- 2.50 in, tennis ball size
- Hail days, last 5 years
- 3
- since Nov 3, 2021 · 6 reports
- Largest ever
- 2.50 in
- tennis ball · Jun 15, 2025
38 reports on 31 days since 1956 · #11 of 111 Montana places
Hail map · Lewistown
- Under 1 in
- 1–1.75 in
- 1.75–2.5 in
- 2.5–4 in
- 4 in +
- No size
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 Lewistown is from June 15, 2025. A local roofer can check and document it at no cost.
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What the record says about Lewistown
The latest hail report in and around Lewistown is from June 15, 2025, 2.50 in (tennis ball size). Since November 3, 2021 there have been 3 separate hail days; the biggest stones in that time were 2.50 in on June 15, 2025.
Over the 20 years 2006–2025, Lewistown logged 15 reports on 11 hail days, about 0.8 reports a year. That is 67% more than the median Montana town on this site (0.5 a year) and ranks #11 of 111 Montana cities and towns on this site for all-time reports. Lewistown accounts for 15% of the 260 reports filed in Fergus County.
3% 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 2.50 in (tennis ball) on June 15, 2025 near 2.73 ESE (Lwt)lewiston Muni A.
Reports were up 50% in 2016–2025 (9) compared with 2006–2015 (6). The busiest year was 2023, with 5 reports on 2 days. Hail here peaks in July (45% of reports); 45% fall between April and June.
Reports a year 2006–2025 average
- Lewistown 0.8
- Fergus County 6.5
- Median Montana town on this site 0.5
Hail days 2006–2025
- Lewistown 11
- Fergus County 71
- Median Montana town on this site 7
Share 2 in or larger of sized reports
- Lewistown 3%
- Fergus County 10%
- Median Montana town on this site 8%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 0 | ||||||||||||
| 2025 | 1 | 1 | |||||||||||
| 2024 | 0 | ||||||||||||
| 2023 | 3 | 2 | 5 | ||||||||||
| 2022 | 0 | ||||||||||||
| 2021 | 1 | 1 | |||||||||||
| 2020 | 1 | 1 | |||||||||||
| 2019 | 1 | 1 | |||||||||||
| 2018 | 0 | ||||||||||||
| 2017 | 0 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Jun 15, 2025 | 1 | 2.50 in | — |
| Jul 29, 2023 | 2 | 1.25 in | — |
| Jun 1, 2023 | 3 | 1.50 in | — |
Largest hail on record
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Jun 15, 2025 | 2.50 intennis ball | 2.73 ESE (Lwt)lewiston Muni A | Fergus | 15:48 local · NCEI |
| Jul 12, 2001 | 1.75 ingolf ball | Lewistown | Fergus | 16:50 local · NCEI |
| Aug 13, 1974 | 1.75 ingolf ball | — | Fergus | 20:00 local · NCEI |
| Jun 20, 1974 | 1.75 ingolf ball | — | Fergus | 20:00 local · NCEI |
| Jun 1, 2023 | 1.50 inping pong ball | 2.48 SE Lewistown | Fergus | 13:54 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
- Under 1 in 15 39%
- 1–2 in 22 58%
- 2 in + 1 3%
Most recent reports
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Jun 15, 2025 | 2.50 intennis ball | 2.73 ESE (Lwt)lewiston Muni A | Fergus | 15:48 local · NCEI |
| Jul 29, 2023 | 1.00 inquarter | 2.73 ESE (Lwt)lewiston Muni A | Fergus | 20:15 local · NCEI |
| Jul 29, 2023 | 1.25 inhalf dollar | 0.47 W Lewistown | Fergus | 20:13 local · NCEI |
| Jun 1, 2023 | 1.00 inquarter | 0.08 NNE Lewistown | Fergus | 14:04 local · NCEI |
| Jun 1, 2023 | 1.00 inquarter | 2.46 S Lewistown | Fergus | 13:59 local · NCEI |
| Jun 1, 2023 | 1.50 inping pong ball | 2.48 SE Lewistown | Fergus | 13:54 local · NCEI |
| Jul 7, 2021 | 1.00 inquarter | 3 S Lewistown | Fergus | 13:55 local · NCEI |
| May 19, 2020 | 1.25 inhalf dollar | 4 WSW Lewistown | Fergus | 19:30 local · NCEI |
| Jul 13, 2019 | 1.00 inquarter | 1 NE Lewistown | Fergus | 15:34 local · NCEI |
| Jul 23, 2014 | 0.75 inpenny | 0.84 SW Lewistown | Fergus | 21:45 local · NCEI |
| Jun 16, 2010 | 1.00 inquarter | Lewistown | Fergus | 15:00 local · NCEI |
| May 5, 2009 | 0.75 inpenny | 2.91 ESE Lewistown | Fergus | 14:15 local · NCEI |
Hail history near Lewistown
- Moore 20 km · 10
- Hobson 32 km · 25
- Judith Gap 47 km · 11
- Denton 48 km · 11
- Grass Range 49 km · 17
- Winifred 57 km · 12
- Stanford 59 km · 20
Questions about hail in Lewistown
How often does it hail in Lewistown, Montana?
38 hail reports have been logged in and within about 5 km (3 miles) of Lewistown since 1956. Over the 20 years 2006–2025 that averages 0.8 reports a year. That ranks #11 of 111 Montana places by number of reports.
When is hail season in Lewistown?
Most reports come in July, June, May. July alone accounts for 45% of all reports.
What is the largest hail recorded in Lewistown?
2.50 in (tennis ball size) on June 15, 2025 near 2.73 ESE (Lwt)lewiston Muni A. 3% of reports here were 2 inches or larger.
When did it last hail in Lewistown?
The most recent report in this data is from June 15, 2025 (2.50 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Lewistown had in the last five years?
3 separate days with hail reports since November 3, 2021, adding up to 6 reports. The most recent was June 15, 2025.
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.