Hail History

Hail history for Sumner, Iowa

NOAA hail reports in and within about 5 km (3 miles) of Sumner since 1962, with preliminary reports to November 3, 2026.

Readout · Sumner

Last hail
Mar 23, 2017
0.88 in, nickel size
Hail days, last 5 years
0
since Nov 3, 2021 · 0 reports
Largest ever
2.00 in
hen egg · May 22, 2011

13 reports on 10 days since 1962 · #338 of 483 Iowa places

Hail map · Sumner

Sumner Tripoli Readlyn Fairbank Denver 5 mi
  • Under 1 in
  • 1–1.75 in
  • 1.75–2.5 in
  • 2.5–4 in
  • 4 in +
  • No size
13 most recent reports with a location; Bremer County is shaded. Open street map

For homeowners

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What the record says about Sumner

The latest hail report in and around Sumner is from March 23, 2017, 0.88 in (nickel size). There has been no hail report here in the five years since November 3, 2021.

Over the 20 years 2006–2025, Sumner logged 5 reports on 3 hail days, about 0.3 reports a year. That is 44% less than the median Iowa town on this site (0.5 a year) and ranks #338 of 483 Iowa cities and towns on this site for all-time reports. Sumner accounts for 10% of the 128 reports filed in Bremer 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 2.00 in (hen egg) on May 22, 2011 near Sumner.

The busiest year was 2014, with 2 reports on 1 day. Hail here peaks in May (46% of reports); 77% fall between April and June.

Reports a year 2006–2025 average

  • Sumner 0.3
  • Bremer County 3.8
  • Median Iowa town on this site 0.5

Hail days 2006–2025

  • Sumner 3
  • Bremer County 20
  • Median Iowa town on this site 7

Share 2 in or larger of sized reports

  • Sumner 8%
  • Bremer County 9%
  • Median Iowa town on this site 6%

Hail over time

012 1962: 1 reports, largest 1.75 in 1970 1980: 1 reports, largest 0.75 in 1980 1983: 1 reports, largest 0.75 in 1987: 2 reports, largest 0.75 in 1990 1998: 1 reports, largest 1.50 in 1999: 2 reports, largest 1.75 in 2000 2010 2011: 2 reports, largest 2.00 in 2014: 2 reports, largest 1.25 in 2017: 1 reports, largest 0.88 in 2020
Reports per year, 1962–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.
0246 Jan Feb March: 1 reports (8%) Mar April: 2 reports (15%) Apr May: 6 reports (46%) May June: 2 reports (15%) Jun Jul Aug September: 2 reports (15%) Sep Oct Nov Dec
All 13 reports by calendar month.
Reports per month, 2017–2026. Darker cells had more reports.
YearJanFebMarAprMayJunJulAugSepOctNovDecTotal
2026 0
2025 0
2024 0
2023 0
2022 0
2021 0
2020 0
2019 0
2018 0
2017 1 1

Largest hail on record

Largest hail reports in Sumner
Date Size Location County Damage Time · source
May 22, 2011 2.00 inhen egg Sumner Bremer $10K 14:25 local · NCEI
May 16, 1999 1.75 ingolf ball 2 S Sumner Bremer $10K 17:15 local · NCEI
May 5, 1962 1.75 ingolf ball — Bremer — 13:30 local · NCEI
Sep 1, 1998 1.50 inping pong ball Sumner Bremer $40K 18:45 local · NCEI
Apr 12, 2014 1.25 inhalf dollar Sumner Bremer $3K 15:56 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

Most recent reports

Most recent hail reports in Sumner
Date Size Location County Damage Time · source
Mar 23, 2017 0.88 innickel 6.31 NW Westgate Fayette — 14:35 local · NCEI
Apr 12, 2014 1.00 inquarter 6.31 NW Westgate Fayette — 16:00 local · NCEI
Apr 12, 2014 1.25 inhalf dollar Sumner Bremer $3K 15:56 local · NCEI
May 22, 2011 1.00 inquarter 2.03 W Sumner Bremer $3K 14:26 local · NCEI
May 22, 2011 2.00 inhen egg Sumner Bremer $10K 14:25 local · NCEI
May 16, 1999 1.75 ingolf ball 2 S Sumner Bremer $10K 17:15 local · NCEI
May 16, 1999 1.00 inquarter 4 SW Sumner Bremer $3K 12:50 local · NCEI
Sep 1, 1998 1.50 inping pong ball Sumner Bremer $40K 18:45 local · NCEI
Jun 17, 1987 0.75 inpenny — Bremer — 14:25 local · NCEI
May 20, 1987 0.75 inpenny — Bremer — 18:40 local · NCEI
Sep 5, 1983 0.75 inpenny — Bremer — 21:20 local · NCEI
Jun 27, 1980 0.75 inpenny — Bremer — 20:16 local · NCEI

Hail history near Sumner

Questions about hail in Sumner

How often does it hail in Sumner, Iowa?

13 hail reports have been logged in and within about 5 km (3 miles) of Sumner since 1962. Over the 20 years 2006–2025 that averages 0.3 reports a year. That ranks #338 of 483 Iowa places by number of reports.

When is hail season in Sumner?

Most reports come in May, April, June. May alone accounts for 46% of all reports.

What is the largest hail recorded in Sumner?

2.00 in (hen egg size) on May 22, 2011 near Sumner. 8% of reports here were 2 inches or larger.

When did it last hail in Sumner?

The most recent report in this data is from March 23, 2017 (0.88 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

How many hail storms has Sumner had in the last five years?

None: there has been no hail report in and within about 5 km (3 miles) of Sumner since November 3, 2021. The last one was on March 23, 2017.

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.