Hail history for Granite County, Montana
Every NOAA hail report filed in Granite County since 1958, with preliminary National Weather Service reports to November 3, 2026.
Readout · Granite County
- Last hail
- Jul 9, 2022
- 0.88 in, nickel size
- Hail days, last 5 years
- 3
- since Nov 3, 2021 · 3 reports
- Largest ever
- 2.00 in
- hen egg · Jul 21, 2021
31 reports on 25 days since 1958 · #50 of 57 Montana counties
Hail map · Granite County
- Under 1 in
- 1–1.75 in
- 1.75–2.5 in
- 2.5–4 in
- 4 in +
- No size
For homeowners
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What the record says about Granite County
The latest hail report in Granite County is from July 9, 2022, 0.88 in (nickel size). Since November 3, 2021 there have been 3 separate hail days; the biggest stones in that time were 0.88 in on July 9, 2022.
Over the 20 years 2006–2025, Granite County logged 23 reports on 18 hail days, about 1.1 reports a year. That is 38% of the median Montana county (3.0 a year) and ranks #50 of 57 Montana counties for all-time reports. Granite County holds 0% of all 8,453 hail reports in Montana.
7% of reports with a size were 2 inches (hen egg) or larger, against 7% for the median Montana county. The largest hail on record here is 2.00 in (hen egg) on July 21, 2021 near 3.58 NNW Garnet.
Reports were down 36% in 2016–2025 (9) compared with 2006–2015 (14). The busiest year was 2009, with 7 reports on 3 days. Hail here peaks in July (42% of reports); 23% fall between April and June.
Reports a year 2006–2025 average
- Granite County 1.1
- Median Montana county 3.0
Hail days 2006–2025
- Granite County 18
- Median Montana county 31
Share 2 in or larger of sized reports
- Granite County 7%
- Median Montana county 7%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 0 | ||||||||||||
| 2025 | 0 | ||||||||||||
| 2024 | 0 | ||||||||||||
| 2023 | 0 | ||||||||||||
| 2022 | 3 | 3 | |||||||||||
| 2021 | 1 | 1 | |||||||||||
| 2020 | 0 | ||||||||||||
| 2019 | 2 | 2 | |||||||||||
| 2018 | 1 | 1 | 2 | ||||||||||
| 2017 | 1 | 1 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Jul 9, 2022 | 1 | 0.88 in | — |
| Jul 8, 2022 | 1 | 0.88 in | — |
| Jul 7, 2022 | 1 | 0.88 in | — |
Largest hail on record
| Date | Size | Location | Damage | Time · source |
|---|---|---|---|---|
| Jul 21, 2021 | 2.00 inhen egg | 3.58 NNW Garnet | — | 17:45 local · NCEI |
| Jul 13, 2019 | 2.00 inhen egg | 20.03 SW Ravenna | — | 19:55 local · NCEI |
| Jul 27, 2018 | 1.75 ingolf ball | 24.87 N Southern Cross | — | 15:55 local · NCEI |
| Jul 4, 2008 | 1.75 ingolf ball | 14 S Philipsburg | $12K | 18:30 local · NCEI |
| Aug 21, 2009 | 1.50 inping pong ball | 13.32 WSW Philipsburg Arpt | — | 18:00 local · NCEI |
Size of every report
- Under 1 in 13 42%
- 1–2 in 16 52%
- 2 in + 2 6%
Most recent reports
| Date | Size | Location | Time · source |
|---|---|---|---|
| Jul 9, 2022 | 0.88 innickel | 9.31 S Philipsburg Arpt | 14:45 local · NCEI |
| Jul 8, 2022 | 0.88 innickel | 2 E Nimrod | 18:20 local · NCEI |
| Jul 7, 2022 | 0.88 innickel | 1.47 NE Bearmouth | 18:00 local · NCEI |
| Jul 21, 2021 | 2.00 inhen egg | 3.58 NNW Garnet | 17:45 local · NCEI |
| Jul 13, 2019 | 1.00 inquarter | 9.63 WSW Ravenna | 20:15 local · NCEI |
| Jul 13, 2019 | 2.00 inhen egg | 20.03 SW Ravenna | 19:55 local · NCEI |
| Jul 27, 2018 | 1.75 ingolf ball | 24.87 N Southern Cross | 15:55 local · NCEI |
| May 31, 2018 | 1.00 inquarter | Hall | 13:47 local · NCEI |
| May 6, 2017 | 1.00 inquarter | 7.95 WSW Southern Cross | 13:30 local · NCEI |
| Aug 9, 2013 | 0.75 inpenny | (3du)drummond | 18:30 local · NCEI |
| Aug 1, 2013 | 0.75 inpenny | 10.36 S Philipsburg Arpt | 11:54 local · NCEI |
| Jun 4, 2012 | 1.00 inquarter | 10.36 S Philipsburg Arpt | 16:00 local · NCEI |
Smaller places with fewer than 10 reports
These places have too few reports for a page of their own, so their record lives here.
| Place | Reports | Hail days | Latest |
|---|---|---|---|
| Drummond | 5 | 4 | Aug 9, 2013 |
| Maxville | 4 | 4 | May 31, 2018 |
| Hall | 2 | 2 | Jul 27, 2018 |
| Philipsburg | 2 | 1 | Jul 6, 2009 |
Questions about hail in Granite County
How often does it hail in Granite County, Montana?
31 hail reports have been logged in Granite County since 1958. Over the 20 years 2006–2025 that averages 1.1 reports a year. That ranks #50 of 57 Montana counties by number of reports.
When is hail season in Granite County?
Most reports come in July, August, June. July alone accounts for 42% of all reports.
What is the largest hail recorded in Granite County?
2.00 in (hen egg size) on July 21, 2021 near 3.58 NNW Garnet. 6% of reports here were 2 inches or larger.
When did it last hail in Granite County?
The most recent report in this data is from July 9, 2022 (0.88 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Granite County had in the last five years?
3 separate days with hail reports since November 3, 2021, adding up to 3 reports. The most recent was July 9, 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.