Hail History

Hail history for Lamoni, Iowa

NOAA hail reports in and within about 5 km (3 miles) of Lamoni since 1956, with preliminary reports to November 3, 2026.

Readout · Lamoni

Last hail
Jun 10, 2015
1.00 in, quarter size
Hail days, last 5 years
0
since Nov 3, 2021 · 0 reports
Largest ever
2.50 in
tennis ball · Jun 3, 2014

20 reports on 16 days since 1956 · #162 of 483 Iowa places

Hail map · Lamoni

Lamoni Decatur Leon Humeston 5 mi
  • Under 1 in
  • 1–1.75 in
  • 1.75–2.5 in
  • 2.5–4 in
  • 4 in +
  • No size
20 most recent reports with a location; Decatur County is shaded. Open street map

For homeowners

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What the record says about Lamoni

The latest hail report in and around Lamoni is from June 10, 2015, 1.00 in (quarter size). There has been no hail report here in the five years since November 3, 2021.

Over the 20 years 2006–2025, Lamoni logged 7 reports on 4 hail days, about 0.3 reports a year. That is 22% less than the median Iowa town on this site (0.5 a year) and ranks #162 of 483 Iowa cities and towns on this site for all-time reports. Lamoni accounts for 21% of the 95 reports filed in Decatur County.

30% 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 June 3, 2014 near 2.57 S Lamoni.

The busiest year was 2014, with 4 reports on 1 day. Hail here peaks in June (40% of reports); 70% fall between April and June.

Reports a year 2006–2025 average

  • Lamoni 0.3
  • Decatur County 1.9
  • Median Iowa town on this site 0.5

Hail days 2006–2025

  • Lamoni 4
  • Decatur County 26
  • Median Iowa town on this site 7

Share 2 in or larger of sized reports

  • Lamoni 30%
  • Decatur County 10%
  • Median Iowa town on this site 6%

Hail over time

01234 1956: 1 reports, largest 0.75 in 1960 1970 1980: 1 reports, largest 1.00 in 1980 1981: 1 reports, largest 2.50 in 1984: 1 reports, largest 2.00 in 1990: 1 reports, largest 0.75 in 1990 2000 2001: 2 reports, largest 2.50 in 2002: 2 reports, largest 1.00 in 2003: 3 reports, largest 1.75 in 2005: 1 reports, largest 0.75 in 2008: 1 reports, largest 0.75 in 2010 2012: 1 reports, largest 0.75 in 2014: 4 reports, largest 2.50 in 2015: 1 reports, largest 1.00 in 2020
Reports per year, 1956–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.
02468 Jan Feb Mar April: 4 reports (20%) Apr May: 2 reports (10%) May June: 8 reports (40%) Jun July: 2 reports (10%) Jul August: 2 reports (10%) Aug September: 2 reports (10%) Sep Oct Nov Dec
All 20 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 0

Largest hail on record

Largest hail reports in Lamoni
Date Size Location County Damage Time · source
Jun 3, 2014 2.50 intennis ball 2.57 S Lamoni Decatur $15K 18:18 local · NCEI
Jul 3, 2001 2.50 intennis ball Osceola Clarke $50K 15:58 local · NCEI
Apr 12, 1981 2.50 intennis ball — Decatur — 23:05 local · NCEI
Jun 3, 2014 2.25 inhen egg 0.52 NNW Lamoni Decatur $20K 18:07 local · NCEI
Jun 3, 2014 2.00 inhen egg 0.76 SW Lamoni Decatur $5K 18:03 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 Lamoni
Date Size Location County Damage Time · source
Jun 10, 2015 1.00 inquarter 2.76 S Lamoni Decatur — 17:08 local · NCEI
Jun 3, 2014 2.50 intennis ball 2.57 S Lamoni Decatur $15K 18:18 local · NCEI
Jun 3, 2014 2.25 inhen egg 0.52 NNW Lamoni Decatur $20K 18:07 local · NCEI
Jun 3, 2014 2.00 inhen egg 0.76 SW Lamoni Decatur $5K 18:03 local · NCEI
Jun 3, 2014 1.00 inquarter Lamoni Decatur — 17:00 local · NCEI
May 24, 2012 0.75 inpenny 0.52 W Lamoni Decatur — 15:30 local · NCEI
Jun 27, 2008 0.75 inpenny Lamoni Decatur — 18:25 local · NCEI
Aug 28, 2005 0.75 inpenny 3 W Lamoni Decatur — 18:35 local · NCEI
Jul 20, 2003 1.50 inping pong ball 2 S Lamoni Decatur $5K 21:01 local · NCEI
Apr 30, 2003 1.00 inquarter Lamoni Decatur $5K 18:12 local · NCEI
Apr 30, 2003 1.75 ingolf ball Lamoni Decatur $10K 18:04 local · NCEI
May 8, 2002 1.00 inquarter 2 N Lamoni Decatur $5K 18:40 local · NCEI

Hail history near Lamoni

Questions about hail in Lamoni

How often does it hail in Lamoni, Iowa?

20 hail reports have been logged in and within about 5 km (3 miles) of Lamoni since 1956. Over the 20 years 2006–2025 that averages 0.3 reports a year. That ranks #162 of 483 Iowa places by number of reports.

When is hail season in Lamoni?

Most reports come in June, April, May. June alone accounts for 40% of all reports.

What is the largest hail recorded in Lamoni?

2.50 in (tennis ball size) on June 3, 2014 near 2.57 S Lamoni. 30% of reports here were 2 inches or larger.

When did it last hail in Lamoni?

The most recent report in this data is from June 10, 2015 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

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

None: there has been no hail report in and within about 5 km (3 miles) of Lamoni since November 3, 2021. The last one was on June 10, 2015.

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.