Hail history for Power County, Idaho
Every NOAA hail report filed in Power County since 1963, with preliminary National Weather Service reports to November 3, 2026.
Readout · Power County
- Last hail
- Sep 17, 2026
- 0.75 in, penny size · preliminary
- Hail days, last 5 years
- 5
- since Nov 3, 2021 · 5 reports
- Largest ever
- 1.75 in
- golf ball · Apr 2, 2017
30 reports on 26 days since 1963 · #13 of 45 Idaho counties
Hail map · Power 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 Power County
The latest hail report in Power County is from September 17, 2026, 0.75 in (penny size). Since November 3, 2021 there have been 5 separate hail days; the biggest stones in that time were 1.25 in on September 7, 2025.
Over the 20 years 2006–2025, Power County logged 14 reports on 11 hail days, about 0.7 reports a year. That is 40% more than the median Idaho county (0.5 a year) and ranks #13 of 45 Idaho counties for all-time reports. Power County holds 3% of all 1,140 hail reports in Idaho.
0% of reports with a size were 2 inches (hen egg) or larger, against 0% for the median Idaho county. The largest hail on record here is 1.75 in (golf ball) on April 2, 2017 near 2 ENE (Pih)pocatello Muni.
Reports held about level in 2016–2025 (7) compared with 2006–2015 (7). The busiest year was 2025, with 3 reports on 3 days. Hail here peaks in June (27% of reports); 60% fall between April and June.
Reports a year 2006–2025 average
- Power County 0.7
- Median Idaho county 0.5
Hail days 2006–2025
- Power County 11
- Median Idaho county 8
Share 2 in or larger of sized reports
- Power County 0%
- Median Idaho county 0%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 1 | 1 | |||||||||||
| 2025 | 1 | 1 | 1 | 3 | |||||||||
| 2024 | 1 | 1 | |||||||||||
| 2023 | 0 | ||||||||||||
| 2022 | 0 | ||||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 0 | ||||||||||||
| 2019 | 0 | ||||||||||||
| 2018 | 0 | ||||||||||||
| 2017 | 3 | 3 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Sep 17, 2026 | 1 | 0.75 in | View |
| Sep 7, 2025 | 1 | 1.25 in | — |
| Jul 4, 2025 | 1 | 1.00 in | — |
| Jun 11, 2025 | 1 | 1.25 in | — |
| Jun 9, 2024 | 1 | 1.00 in | — |
Largest hail on record
| Date | Size | Location | Time · source |
|---|---|---|---|
| Apr 2, 2017 | 1.75 ingolf ball | 2 ENE (Pih)pocatello Muni | 15:39 local · NCEI |
| Apr 28, 2003 | 1.75 ingolf ball | Pocatello Arpt | 16:14 local · NCEI |
| Apr 28, 2003 | 1.75 ingolf ball | American Falls | 15:40 local · NCEI |
| Sep 11, 1997 | 1.75 ingolf ball | Rockland | 15:00 local · NCEI |
| Apr 2, 2017 | 1.50 inping pong ball | 3 ENE (Pih)pocatello Muni | 15:41 local · NCEI |
Size of every report
- Under 1 in 9 30%
- 1–2 in 21 70%
- 2 in + 0 0%
Most recent reports
| Date | Size | Location | Time · source |
|---|---|---|---|
| Sep 17, 2026 | 0.75 inpenny | 1 SSE Pocatello Airport | 23:45 UTC · NWS prelim. |
| Sep 7, 2025 | 1.25 inhalf dollar | 5 NW Roy | 15:15 local · NCEI |
| Jul 4, 2025 | 1.00 inquarter | Cold Water | 15:17 local · NCEI |
| Jun 11, 2025 | 1.25 inhalf dollar | 1 SSE (Pih)pocatello Muni | 13:15 local · NCEI |
| Jun 9, 2024 | 1.00 inquarter | 1 SE American Falls | 15:54 local · NCEI |
| Apr 2, 2017 | 1.50 inping pong ball | 3 ENE (Pih)pocatello Muni | 15:41 local · NCEI |
| Apr 2, 2017 | 1.75 ingolf ball | 2 ENE (Pih)pocatello Muni | 15:39 local · NCEI |
| Apr 2, 2017 | 1.25 inhalf dollar | (Pih)pocatello Muni | 15:35 local · NCEI |
| Jun 15, 2015 | 1.00 inquarter | (Pih)pocatello Muni | 17:50 local · NCEI |
| Aug 4, 2011 | 1.00 inquarter | 4 ENE American Falls | 17:22 local · NCEI |
| May 3, 2009 | 0.88 innickel | 4 E Rockland | 13:25 local · NCEI |
| Jul 22, 2008 | 0.75 inpenny | 7 WSW American Falls | 15:50 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 |
|---|---|---|---|
| Arbon Valley | 9 | 6 | Sep 17, 2026 |
| Rockland | 4 | 4 | Aug 18, 2007 |
| American Falls | 3 | 3 | Jun 9, 2024 |
Questions about hail in Power County
How often does it hail in Power County, Idaho?
30 hail reports have been logged in Power County since 1963. Over the 20 years 2006–2025 that averages 0.7 reports a year. That ranks #13 of 45 Idaho counties by number of reports.
When is hail season in Power County?
Most reports come in June, April, May. June alone accounts for 27% of all reports.
What is the largest hail recorded in Power County?
1.75 in (golf ball size) on April 2, 2017 near 2 ENE (Pih)pocatello Muni. 0% of reports here were 2 inches or larger.
When did it last hail in Power County?
The most recent report in this data is from September 17, 2026 (0.75 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Power County had in the last five years?
5 separate days with hail reports since November 3, 2021, adding up to 5 reports. The most recent was September 17, 2026.
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.