Hail history for Twin Falls County, Idaho
Every NOAA hail report filed in Twin Falls County since 1963, with preliminary National Weather Service reports to November 3, 2026.
Readout · Twin Falls County
- Last hail
- May 26, 2023
- 1.25 in, half dollar size
- Hail days, last 5 years
- 2
- since Nov 3, 2021 · 3 reports
- Largest ever
- 2.00 in
- hen egg · Jul 21, 1970
48 reports on 41 days since 1963 · #5 of 45 Idaho counties
Hail map · Twin Falls 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 Twin Falls County
The latest hail report in Twin Falls County is from May 26, 2023, 1.25 in (half dollar size). Since November 3, 2021 there have been 2 separate hail days; the biggest stones in that time were 1.25 in on May 26, 2023.
Over the 20 years 2006–2025, Twin Falls County logged 22 reports on 17 hail days, about 1.1 reports a year. That is about twice the median Idaho county (0.5 a year) and ranks #5 of 45 Idaho counties for all-time reports. Twin Falls County holds 4% of all 1,140 hail reports in Idaho.
2% 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 July 21, 1970.
Reports were down 43% in 2016–2025 (8) compared with 2006–2015 (14). The busiest year was 2019, with 4 reports on 1 day. Hail here peaks in June (27% of reports); 50% fall between April and June.
Reports a year 2006–2025 average
- Twin Falls County 1.1
- Median Idaho county 0.5
Hail days 2006–2025
- Twin Falls County 17
- Median Idaho county 8
Share 2 in or larger of sized reports
- Twin Falls County 2%
- Median Idaho county 0%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 0 | ||||||||||||
| 2025 | 0 | ||||||||||||
| 2024 | 0 | ||||||||||||
| 2023 | 3 | 3 | |||||||||||
| 2022 | 0 | ||||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 0 | ||||||||||||
| 2019 | 4 | 4 | |||||||||||
| 2018 | 1 | 1 | |||||||||||
| 2017 | 0 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| May 26, 2023 | 2 | 1.25 in | — |
| May 25, 2023 | 1 | 1.00 in | — |
Largest hail on record
| Date | Size | Location | Time · source |
|---|---|---|---|
| Jul 21, 1970 | 2.00 inhen egg | — | 17:00 local · NCEI |
| Aug 21, 2014 | 1.75 ingolf ball | Castleford | 15:00 local · NCEI |
| Jul 14, 1985 | 1.75 ingolf ball | — | 19:30 local · NCEI |
| Aug 14, 1979 | 1.75 ingolf ball | — | 13:30 local · NCEI |
| Sep 9, 2019 | 1.50 inping pong ball | 1.53 W Hansen | 18:25 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 20 43%
- 1–2 in 25 54%
- 2 in + 1 2%
- No size 2
Most recent reports
| Date | Size | Location | Time · source |
|---|---|---|---|
| May 26, 2023 | 1.25 inhalf dollar | 1.83 NNE Hollister | 14:20 local · NCEI |
| May 26, 2023 | 1.00 inquarter | 0.51 W Hollister | 12:19 local · NCEI |
| May 25, 2023 | 1.00 inquarter | 1.72 NW Amsterdam | 16:35 local · NCEI |
| Sep 9, 2019 | 1.50 inping pong ball | 1.53 W Hansen | 18:25 local · NCEI |
| Sep 9, 2019 | 1.00 inquarter | 1.53 W (Twf)twin Falls Arpt | 18:03 local · NCEI |
| Sep 9, 2019 | 1.00 inquarter | 1.72 NE Berger | 18:01 local · NCEI |
| Sep 9, 2019 | 1.25 inhalf dollar | 0.69 S Berger | 17:56 local · NCEI |
| May 30, 2018 | 1.25 inhalf dollar | 4.42 SSE Murtaugh | 17:00 local · NCEI |
| Jun 1, 2015 | 1.00 inquarter | 4 N Rogerson | 12:35 local · NCEI |
| May 31, 2015 | 1.00 inquarter | 3.16 SSW Kimberly | 16:50 local · NCEI |
| Aug 22, 2014 | 1.00 inquarter | 0.86 SE Twin Falls | 19:10 local · NCEI |
| Aug 21, 2014 | 1.75 ingolf ball | Castleford | 15:00 local · NCEI |
Cities and towns in Twin Falls County
| Place | Reports | Largest |
|---|---|---|
| Twin Falls | 12 | 2.00 in |
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 |
|---|---|---|---|
| Hollister | 7 | 6 | May 26, 2023 |
| Filer | 3 | 3 | Sep 4, 2013 |
| Kimberly | 3 | 3 | Sep 9, 2019 |
| Buhl | 2 | 2 | May 5, 2005 |
| Murtaugh | 1 | 1 | Jun 13, 1996 |
Questions about hail in Twin Falls County
How often does it hail in Twin Falls County, Idaho?
48 hail reports have been logged in Twin Falls County since 1963. Over the 20 years 2006–2025 that averages 1.1 reports a year. That ranks #5 of 45 Idaho counties by number of reports.
When is hail season in Twin Falls County?
Most reports come in June, May, August. June alone accounts for 27% of all reports.
What is the largest hail recorded in Twin Falls County?
2.00 in (hen egg size) on July 21, 1970. 2% of reports here were 2 inches or larger.
When did it last hail in Twin Falls County?
The most recent report in this data is from May 26, 2023 (1.25 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Twin Falls County had in the last five years?
2 separate days with hail reports since November 3, 2021, adding up to 3 reports. The most recent was May 26, 2023.
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.