Hail history for Bannock County, Idaho
Every NOAA hail report filed in Bannock County since 1958, with preliminary National Weather Service reports to November 3, 2026.
Readout · Bannock County
- Last hail
- Sep 17, 2026
- 0.50 in, marble size · preliminary
- Hail days, last 5 years
- 7
- since Nov 3, 2021 · 12 reports
- Largest ever
- 2.00 in
- hen egg · Jun 1, 2015
83 reports on 58 days since 1958 · #1 of 45 Idaho counties
Hail map · Bannock County
- 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 Bannock County is from September 17, 2026. A local roofer can check and document it at no cost.
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What the record says about Bannock County
The latest hail report in Bannock County is from September 17, 2026, 0.50 in (marble size). Since November 3, 2021 there have been 7 separate hail days; the biggest stones in that time were 1.50 in on May 23, 2023.
Over the 20 years 2006–2025, Bannock County logged 31 reports on 18 hail days, about 1.6 reports a year. That is 3.1 times the median Idaho county (0.5 a year) and ranks #1 of 45 Idaho counties for all-time reports. Bannock County holds 7% of all 1,140 hail reports in Idaho.
1% 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 2.00 in (hen egg) on June 1, 2015 near Chubbuck.
Reports were up 38% in 2016–2025 (18) compared with 2006–2015 (13). The busiest year was 1997, with 19 reports on 10 days. Hail here peaks in June (28% of reports); 58% fall between April and June.
Reports a year 2006–2025 average
- Bannock County 1.6
- Median Idaho county 0.5
Hail days 2006–2025
- Bannock County 18
- Median Idaho county 8
Share 2 in or larger of sized reports
- Bannock County 1%
- Median Idaho county 0%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 1 | 2 | 3 | ||||||||||
| 2025 | 1 | 1 | |||||||||||
| 2024 | 2 | 1 | 3 | ||||||||||
| 2023 | 5 | 5 | |||||||||||
| 2022 | 0 | ||||||||||||
| 2021 | 1 | 1 | |||||||||||
| 2020 | 0 | ||||||||||||
| 2019 | 0 | ||||||||||||
| 2018 | 0 | ||||||||||||
| 2017 | 7 | 1 | 8 |
Hail days since Nov 3, 2021
Largest hail on record
| Date | Size | Location | Damage | Time · source |
|---|---|---|---|---|
| Jun 1, 2015 | 2.00 inhen egg | Chubbuck | — | 14:43 local · NCEI |
| Jun 1, 2015 | 1.75 ingolf ball | 3 N Tyhee | — | 14:45 local · NCEI |
| Apr 28, 2003 | 1.75 ingolf ball | Chubbuck | — | 16:30 local · NCEI |
| Jun 18, 1999 | 1.75 ingolf ball | Pocatello | — | 15:45 local · NCEI |
| Aug 12, 1997 | 1.75 ingolf ball | Pocatello | $1.0 million | 15:04 local · NCEI |
Size of every report
- Under 1 in 36 43%
- 1–2 in 46 55%
- 2 in + 1 1%
Most recent reports
| Date | Size | Location | Time · source |
|---|---|---|---|
| Sep 17, 2026 | 0.50 inmarble | 2 E Chubbuck | 16:55 UTC · NWS prelim. |
| Sep 17, 2026 | 0.25 inpea | 3 NNW Chubbuck | 12:00 UTC · NWS prelim. |
| Aug 22, 2026 | 0.88 innickel | 2 ESE Pocatello | 20:12 UTC · NWS prelim. |
| May 11, 2025 | 1.00 inquarter | 2 W Inkom | 12:51 local · NCEI |
| Aug 13, 2024 | 1.00 inquarter | 7 WNW Mc Cammon | 13:00 local · NCEI |
| Jun 9, 2024 | 1.00 inquarter | 1 W Chubbuck | 16:38 local · NCEI |
| Jun 9, 2024 | 1.00 inquarter | 1 SSW Pocatello | 16:33 local · NCEI |
| May 24, 2023 | 1.00 inquarter | Pocatello | 14:40 local · NCEI |
| May 24, 2023 | 1.00 inquarter | 1 SE Pocatello | 14:30 local · NCEI |
| May 23, 2023 | 1.00 inquarter | 2 N Pocatello | 16:08 local · NCEI |
| May 23, 2023 | 1.50 inping pong ball | 4 N Chubbuck | 16:05 local · NCEI |
| May 23, 2023 | 1.00 inquarter | 1 W Chubbuck | 16:02 local · NCEI |
Cities and towns in Bannock County
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 |
|---|---|---|---|
| Inkom | 7 | 6 | May 11, 2025 |
| McCammon | 5 | 5 | Sep 2, 2021 |
| Arimo | 3 | 2 | Jul 15, 2001 |
| Lava Hot Springs | 2 | 2 | Sep 1, 2000 |
| Downey | 1 | 1 | Jun 15, 2015 |
Questions about hail in Bannock County
How often does it hail in Bannock County, Idaho?
83 hail reports have been logged in Bannock County since 1958. Over the 20 years 2006–2025 that averages 1.6 reports a year. That ranks #1 of 45 Idaho counties by number of reports.
When is hail season in Bannock County?
Most reports come in June, May, August. June alone accounts for 28% of all reports.
What is the largest hail recorded in Bannock County?
2.00 in (hen egg size) on June 1, 2015 near Chubbuck. 1% of reports here were 2 inches or larger.
When did it last hail in Bannock County?
The most recent report in this data is from September 17, 2026 (0.50 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Bannock County had in the last five years?
7 separate days with hail reports since November 3, 2021, adding up to 12 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.