Hail history for Jasper County, Iowa
Every NOAA hail report filed in Jasper County since 1972, with preliminary National Weather Service reports to November 3, 2026.
Readout · Jasper County
- Last hail
- Apr 17, 2025
- 1.00 in, quarter size
- Hail days, last 5 years
- 12
- since Nov 3, 2021 · 36 reports
- Largest ever
- 4.50 in
- softball · Jul 7, 2003
220 reports on 101 days since 1972 · #17 of 100 Iowa counties
Hail map · Jasper 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 Jasper County
The latest hail report in Jasper County is from April 17, 2025, 1.00 in (quarter size). Since November 3, 2021 there have been 12 separate hail days; the biggest stones in that time were 2.75 in on May 7, 2023.
Over the 20 years 2006–2025, Jasper County logged 108 reports on 54 hail days, about 5.4 reports a year. That is 46% more than the median Iowa county (3.7 a year) and ranks #17 of 100 Iowa counties for all-time reports. Jasper County holds 1% of all 16,032 hail reports in Iowa.
11% of reports with a size were 2 inches (hen egg) or larger, against 7% for the median Iowa county. The largest hail on record here is 4.50 in (softball) on July 7, 2003 near Newton.
Reports held about level in 2016–2025 (55) compared with 2006–2015 (53). The busiest year was 2003, with 33 reports on 5 days. Hail here peaks in May (24% of reports); 64% fall between April and June.
Reports a year 2006–2025 average
- Jasper County 5.4
- Median Iowa county 3.7
Hail days 2006–2025
- Jasper County 54
- Median Iowa county 39.5
Share 2 in or larger of sized reports
- Jasper County 11%
- Median Iowa county 7%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 0 | ||||||||||||
| 2025 | 1 | 2 | 3 | ||||||||||
| 2024 | 2 | 1 | 8 | 11 | |||||||||
| 2023 | 1 | 6 | 13 | 20 | |||||||||
| 2022 | 2 | 2 | |||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 2 | 2 | |||||||||||
| 2019 | 2 | 1 | 1 | 4 | |||||||||
| 2018 | 1 | 1 | 1 | 3 | |||||||||
| 2017 | 1 | 1 | 7 | 9 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Apr 17, 2025 | 2 | 1.00 in | — |
| Mar 29, 2025 | 1 | 1.00 in | — |
| Jul 30, 2024 | 5 | 1.75 in | — |
| Jul 28, 2024 | 2 | 1.75 in | — |
| Jul 15, 2024 | 1 | 1.00 in | — |
| May 24, 2024 | 1 | 1.50 in | — |
| Apr 27, 2024 | 2 | 1.50 in | — |
| May 7, 2023 | 13 | 2.75 in | — |
| Apr 19, 2023 | 1 | 1.00 in | — |
| Apr 4, 2023 | 5 | 1.75 in | — |
| Mar 31, 2023 | 1 | 1.75 in | — |
| Sep 17, 2022 | 2 | 1.00 in | — |
Largest hail on record
| Date | Size | Location | Damage | Time · source |
|---|---|---|---|---|
| Jul 7, 2003 | 4.50 insoftball | Newton | $500K | 15:32 local · NCEI |
| Jul 7, 2003 | 4.25 ingrapefruit | Newton | $500K | 15:52 local · NCEI |
| May 18, 2000 | 3.00 inteacup | 4 SE Prairie City | $20K | 11:23 local · NCEI |
| May 7, 2023 | 2.75 inbaseball | 1.38 N Newton Muni Arpt | — | 15:20 local · NCEI |
| May 7, 2023 | 2.75 inbaseball | 0.69 S Newton | — | 15:20 local · NCEI |
Size of every report
- Under 1 in 61 28%
- 1–2 in 134 61%
- 2 in + 25 11%
Most recent reports
| Date | Size | Location | Time · source |
|---|---|---|---|
| Apr 17, 2025 | 1.00 inquarter | 0.52 W Monroe | 22:05 local · NCEI |
| Apr 17, 2025 | 0.75 inpenny | 4.15 S Prairie City | 22:05 local · NCEI |
| Mar 29, 2025 | 1.00 inquarter | 0.52 W Prairie City | 23:27 local · NCEI |
| Jul 30, 2024 | 1.75 ingolf ball | 3.69 W Monroe | 13:20 local · NCEI |
| Jul 30, 2024 | 1.00 inquarter | 0.69 N Monroe | 13:15 local · NCEI |
| Jul 30, 2024 | 1.00 inquarter | 0.52 W Prairie City | 13:03 local · NCEI |
| Jul 30, 2024 | 1.75 ingolf ball | 2.59 SW Prairie City | 13:00 local · NCEI |
| Jul 30, 2024 | 0.88 innickel | 4.97 SW Colfax | 12:54 local · NCEI |
| Jul 28, 2024 | 1.75 ingolf ball | 0.86 NE Colfax | 19:50 local · NCEI |
| Jul 28, 2024 | 1.50 inping pong ball | 1.24 NE Colfax | 19:43 local · NCEI |
| Jul 15, 2024 | 1.00 inquarter | 0.86 NW Monroe | 17:18 local · NCEI |
| May 24, 2024 | 1.50 inping pong ball | 0.52 W Prairie City | 04:22 local · NCEI |
Cities and towns in Jasper 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 |
|---|---|---|---|
| Sully | 9 | 6 | Apr 27, 2024 |
| Mingo | 4 | 4 | May 19, 2013 |
| Mitchellville | 4 | 3 | Sep 8, 2026 |
| Valeria | 3 | 3 | Apr 19, 2023 |
| Oakland Acres | 2 | 2 | Jul 22, 2011 |
| Lambs Grove | 1 | 1 | May 7, 2023 |
| Lynnville | 1 | 1 | Jun 12, 2001 |
Questions about hail in Jasper County
How often does it hail in Jasper County, Iowa?
220 hail reports have been logged in Jasper County since 1972. Over the 20 years 2006–2025 that averages 5.4 reports a year. That ranks #17 of 100 Iowa counties by number of reports.
When is hail season in Jasper County?
Most reports come in May, June, July. May alone accounts for 24% of all reports.
What is the largest hail recorded in Jasper County?
4.50 in (softball size) on July 7, 2003 near Newton. 11% of reports here were 2 inches or larger.
When did it last hail in Jasper County?
The most recent report in this data is from April 17, 2025 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Jasper County had in the last five years?
12 separate days with hail reports since November 3, 2021, adding up to 36 reports. The most recent was April 17, 2025.
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.