Hail history for Blaine County, Idaho
Every NOAA hail report filed in Blaine County since 1975, with preliminary National Weather Service reports to November 3, 2026.
Readout · Blaine County
- Last hail
- Sep 17, 2026
- 1.25 in, half dollar size · preliminary
- Hail days, last 5 years
- 1
- since Nov 3, 2021 · 2 reports
- Largest ever
- 1.75 in
- golf ball · Aug 14, 1979
11 reports on 9 days since 1975 · #37 of 45 Idaho counties
Hail map · Blaine 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 Blaine County
The latest hail report in Blaine County is from September 17, 2026, 1.25 in (half dollar size). Since November 3, 2021 there has been one hail day; the biggest stones in that time were 1.25 in on September 17, 2026.
Over the 20 years 2006–2025, Blaine County logged 4 reports on 4 hail days, about 0.2 reports a year. That is 40% of the median Idaho county (0.5 a year) and ranks #37 of 45 Idaho counties for all-time reports. Blaine County holds 1% 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 August 14, 1979.
The busiest year was 2026, with 2 reports on 1 day. Hail here peaks in August (36% of reports); 27% fall between April and June.
Reports a year 2006–2025 average
- Blaine County 0.2
- Median Idaho county 0.5
Hail days 2006–2025
- Blaine County 4
- Median Idaho county 8
Share 2 in or larger of sized reports
- Blaine County 0%
- Median Idaho county 0%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 2 | 2 | |||||||||||
| 2025 | 0 | ||||||||||||
| 2024 | 0 | ||||||||||||
| 2023 | 0 | ||||||||||||
| 2022 | 0 | ||||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 0 | ||||||||||||
| 2019 | 1 | 1 | |||||||||||
| 2018 | 0 | ||||||||||||
| 2017 | 1 | 1 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Sep 17, 2026 | 2 | 1.25 in | View |
Largest hail on record
| Date | Size | Location | Time · source |
|---|---|---|---|
| Aug 14, 1979 | 1.75 ingolf ball | — | 14:00 local · NCEI |
| Sep 17, 2026 | 1.25 inhalf dollar | Gannett | 15:40 UTC · NWS prelim. |
| May 26, 2019 | 1.00 inquarter | Ketchum | 11:04 local · NCEI |
| Jun 28, 2017 | 1.00 inquarter | 5 N Carey | 13:20 local · NCEI |
| Aug 21, 2014 | 1.00 inquarter | Ketchum | 12:35 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 5 45%
- 1–2 in 6 55%
- 2 in + 0 0%
Most recent reports
| Date | Size | Location | Time · source |
|---|---|---|---|
| Sep 17, 2026 | 1.25 inhalf dollar | Gannett | 15:40 UTC · NWS prelim. |
| Sep 17, 2026 | 0.88 innickel | Gannett | 15:40 UTC · NWS prelim. |
| May 26, 2019 | 1.00 inquarter | Ketchum | 11:04 local · NCEI |
| Jun 28, 2017 | 1.00 inquarter | 5 N Carey | 13:20 local · NCEI |
| Aug 21, 2014 | 1.00 inquarter | Ketchum | 12:35 local · NCEI |
| Aug 8, 2008 | 0.75 inpenny | 1 S Bellevue | 17:15 local · NCEI |
| Jul 6, 1995 | 0.75 inpenny | — | 16:00 local · NCEI |
| Jul 6, 1995 | 0.75 inpenny | Hailey | 14:50 local · NCEI |
| May 17, 1991 | 0.75 inpenny | — | 13:00 local · NCEI |
| Aug 14, 1979 | 1.75 ingolf ball | — | 14:00 local · NCEI |
| Aug 23, 1975 | 1.00 inquarter | — | 17:30 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 |
|---|---|---|---|
| Ketchum | 3 | 3 | May 26, 2019 |
| Gannett | 2 | 1 | Sep 17, 2026 |
| Bellevue | 1 | 1 | Aug 8, 2008 |
| Carey | 1 | 1 | Aug 23, 1975 |
Questions about hail in Blaine County
How often does it hail in Blaine County, Idaho?
11 hail reports have been logged in Blaine County since 1975. Over the 20 years 2006–2025 that averages 0.2 reports a year. That ranks #37 of 45 Idaho counties by number of reports.
When is hail season in Blaine County?
Most reports come in August, May, July. August alone accounts for 36% of all reports.
What is the largest hail recorded in Blaine County?
1.75 in (golf ball size) on August 14, 1979. 0% of reports here were 2 inches or larger.
When did it last hail in Blaine County?
The most recent report in this data is from September 17, 2026 (1.25 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Blaine County had in the last five years?
1 separate days with hail reports since November 3, 2021, adding up to 2 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.