Hail history for Rochester, Iowa
NOAA hail reports in and within about 5 km (3 miles) of Rochester since 1997, with preliminary reports to November 5, 2026.
Readout · Rochester
- Last hail
- Mar 10, 2026
- 1.50 in, ping pong ball size
- Hail days, last 5 years
- 3
- since Nov 5, 2021 · 4 reports
- Largest ever
- 2.50 in
- tennis ball · Sep 18, 2022
12 reports on 11 days since 1997 · #380 of 483 Iowa places
Hail map · Rochester
- 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 Rochester
The latest hail report in and around Rochester is from March 10, 2026, 1.50 in (ping pong ball size). Since November 5, 2021 there have been 3 separate hail days; the biggest stones in that time were 2.50 in on September 18, 2022.
Over the 20 years 2006–2025, Rochester logged 6 reports on 5 hail days, about 0.3 reports a year. That is 33% less than the median Iowa town on this site (0.5 a year) and ranks #380 of 483 Iowa cities and towns on this site for all-time reports. Rochester accounts for 8% of the 143 reports filed in Cedar County.
8% of reports with a size were 2 inches (hen egg) or larger, against 6% for the median Iowa town on this site. The largest hail on record here is 2.50 in (tennis ball) on September 18, 2022 near 2.18 ESE Rochester.
The busiest year was 2022, with 2 reports on 1 day. Hail here peaks in March (17% of reports); 50% fall between April and June.
Reports a year 2006–2025 average
- Rochester 0.3
- Cedar County 4.0
- Median Iowa town on this site 0.5
Hail days 2006–2025
- Rochester 5
- Cedar County 39
- Median Iowa town on this site 7
Share 2 in or larger of sized reports
- Rochester 8%
- Cedar County 8%
- Median Iowa town on this site 6%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 1 | 1 | |||||||||||
| 2025 | 0 | ||||||||||||
| 2024 | 1 | 1 | |||||||||||
| 2023 | 0 | ||||||||||||
| 2022 | 2 | 2 | |||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 0 | ||||||||||||
| 2019 | 1 | 1 | |||||||||||
| 2018 | 0 | ||||||||||||
| 2017 | 0 |
Hail days since Nov 5, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Mar 10, 2026 | 1 | 1.50 in | — |
| May 21, 2024 | 1 | 1.00 in | — |
| Sep 18, 2022 | 2 | 2.50 in | — |
Largest hail on record
| Date | Size | Location | County | Damage | Time · source |
|---|---|---|---|---|---|
| Sep 18, 2022 | 2.50 intennis ball | 2.18 ESE Rochester | Cedar | — | 19:50 local · NCEI |
| Mar 10, 2026 | 1.50 inping pong ball | 0.52 E Rochester | Cedar | — | 18:39 local · NCEI |
| May 21, 2024 | 1.00 inquarter | 0.52 E Rochester | Cedar | — | 17:09 local · NCEI |
| Sep 18, 2022 | 1.00 inquarter | Rochester | Cedar | — | 19:53 local · NCEI |
| Jun 4, 2005 | 1.00 inquarter | Walker | Linn | $3K | 21:06 local · NCEI |
Size of every report
- Under 1 in 5 42%
- 1–2 in 6 50%
- 2 in + 1 8%
Most recent reports
| Date | Size | Location | County | Damage | Time · source |
|---|---|---|---|---|---|
| Mar 10, 2026 | 1.50 inping pong ball | 0.52 E Rochester | Cedar | — | 18:39 local · NCEI |
| May 21, 2024 | 1.00 inquarter | 0.52 E Rochester | Cedar | — | 17:09 local · NCEI |
| Sep 18, 2022 | 1.00 inquarter | Rochester | Cedar | — | 19:53 local · NCEI |
| Sep 18, 2022 | 2.50 intennis ball | 2.18 ESE Rochester | Cedar | — | 19:50 local · NCEI |
| Apr 17, 2019 | 0.75 inpenny | 1.38 N Lime City | Cedar | — | 19:26 local · NCEI |
| Jul 19, 2013 | 0.88 innickel | 1.48 SSE Rochester | Cedar | — | 18:34 local · NCEI |
| Aug 9, 2008 | 0.75 inpenny | 2.08 SE Rochester | Cedar | — | 17:35 local · NCEI |
| Jun 4, 2005 | 1.00 inquarter | Walker | Linn | $3K | 21:06 local · NCEI |
| Mar 30, 2005 | 0.75 inpenny | Rochester | Cedar | — | 13:14 local · NCEI |
| Apr 9, 2001 | 0.75 inpenny | Lime City | Cedar | — | 07:40 local · NCEI |
| Jun 18, 1998 | 1.00 inquarter | 1 S Rochester | Cedar | — | 16:00 local · NCEI |
| May 18, 1997 | 1.00 inquarter | 1 S Rochester | Cedar | — | 18:23 local · NCEI |
Hail history near Rochester
- Tipton 11 km · 26
- West Liberty 15 km · 13
- West Branch 17 km · 11
- Mechanicsville 27 km · 14
- Lowden 28 km · 21
- Muscatine 29 km · 74
- Iowa City 32 km · 80
- Solon 33 km · 12
Questions about hail in Rochester
How often does it hail in Rochester, Iowa?
12 hail reports have been logged in and within about 5 km (3 miles) of Rochester since 1997. Over the 20 years 2006–2025 that averages 0.3 reports a year. That ranks #380 of 483 Iowa places by number of reports.
When is hail season in Rochester?
Most reports come in March, April, May. March alone accounts for 17% of all reports.
What is the largest hail recorded in Rochester?
2.50 in (tennis ball size) on September 18, 2022 near 2.18 ESE Rochester. 8% of reports here were 2 inches or larger.
When did it last hail in Rochester?
The most recent report in this data is from March 10, 2026 (1.50 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 5, 2026.
How many hail storms has Rochester had in the last five years?
3 separate days with hail reports since November 5, 2021, adding up to 4 reports. The most recent was March 10, 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.