Hail History

Hail history for Olin, Iowa

NOAA hail reports in and within about 5 km (3 miles) of Olin since 1992, with preliminary reports to November 3, 2026.

Readout · Olin

Last hail
Aug 10, 2017
1.75 in, golf ball size
Hail days, last 5 years
0
since Nov 3, 2021 · 0 reports
Largest ever
2.75 in
baseball · May 22, 2011

11 reports on 8 days since 1992 · #419 of 483 Iowa places

Hail map · Olin

Olin Wyoming Anamosa Martelle Monticello 10 mi
  • Under 1 in
  • 1–1.75 in
  • 1.75–2.5 in
  • 2.5–4 in
  • 4 in +
  • No size
11 most recent reports with a location; Jones County is shaded. Open street map

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What the record says about Olin

The latest hail report in and around Olin is from August 10, 2017, 1.75 in (golf ball size). There has been no hail report here in the five years since November 3, 2021.

Over the 20 years 2006–2025, Olin logged 8 reports on 6 hail days, about 0.4 reports a year. That is 11% less than the median Iowa town on this site (0.5 a year) and ranks #419 of 483 Iowa cities and towns on this site for all-time reports. Olin accounts for 8% of the 134 reports filed in Jones County.

9% 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 2.75 in (baseball) on May 22, 2011 near 1.69 WSW Olin.

Reports were down 86% in 2016–2025 (1) compared with 2006–2015 (7). The busiest year was 2011, with 3 reports on 1 day. Hail here peaks in May (36% of reports); 64% fall between April and June.

Reports a year 2006–2025 average

  • Olin 0.4
  • Jones County 4.0
  • Median Iowa town on this site 0.5

Hail days 2006–2025

  • Olin 6
  • Jones County 47
  • Median Iowa town on this site 7

Share 2 in or larger of sized reports

  • Olin 9%
  • Jones County 6%
  • Median Iowa town on this site 6%

Hail over time

0123 1992: 1 reports, largest 0.75 in 1995 2000 2005: 2 reports, largest 0.75 in 2005 2006: 2 reports, largest 0.75 in 2010 2011: 3 reports, largest 2.75 in 2013: 1 reports, largest 1.00 in 2014: 1 reports, largest 1.50 in 2015 2017: 1 reports, largest 1.75 in 2020 2025
Reports per year, 1992–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.
01234 Jan Feb Mar April: 1 reports (9%) Apr May: 4 reports (36%) May June: 2 reports (18%) Jun July: 1 reports (9%) Jul August: 1 reports (9%) Aug September: 1 reports (9%) Sep Oct November: 1 reports (9%) Nov Dec
All 11 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 Olin
Date Size Location County Time · source
May 22, 2011 2.75 inbaseball 1.69 WSW Olin Jones 15:24 local · NCEI
Aug 10, 2017 1.75 ingolf ball 0.51 W Olin Jones 13:25 local · NCEI
May 22, 2011 1.75 ingolf ball 0.51 W Olin Jones 15:30 local · NCEI
May 20, 2014 1.50 inping pong ball 1.54 W Olin Jones 19:35 local · NCEI
Sep 19, 2013 1.00 inquarter 0.51 W Olin Jones 18:00 local · NCEI

Size of every report

Most recent reports

Most recent hail reports in Olin
Date Size Location County Time · source
Aug 10, 2017 1.75 ingolf ball 0.51 W Olin Jones 13:25 local · NCEI
May 20, 2014 1.50 inping pong ball 1.54 W Olin Jones 19:35 local · NCEI
Sep 19, 2013 1.00 inquarter 0.51 W Olin Jones 18:00 local · NCEI
May 22, 2011 1.75 ingolf ball 0.51 W Olin Jones 15:30 local · NCEI
May 22, 2011 2.75 inbaseball 1.69 WSW Olin Jones 15:24 local · NCEI
May 22, 2011 1.00 inquarter 0.51 W Olin Jones 15:24 local · NCEI
Nov 10, 2006 0.75 inpenny Olin Jones 11:27 local · NCEI
Jul 19, 2006 0.75 inpenny Olin Jones 11:50 local · NCEI
Jun 9, 2005 0.75 inpenny 2 WSW Olin Jones 01:30 local · NCEI
Jun 9, 2005 0.75 inpenny 2 W Olin Jones 01:27 local · NCEI
Apr 10, 1992 0.75 inpenny — Jones 17:53 local · NCEI

Hail history near Olin

Questions about hail in Olin

How often does it hail in Olin, Iowa?

11 hail reports have been logged in and within about 5 km (3 miles) of Olin since 1992. Over the 20 years 2006–2025 that averages 0.4 reports a year. That ranks #419 of 483 Iowa places by number of reports.

When is hail season in Olin?

Most reports come in May, June, April. May alone accounts for 36% of all reports.

What is the largest hail recorded in Olin?

2.75 in (baseball size) on May 22, 2011 near 1.69 WSW Olin. 9% of reports here were 2 inches or larger.

When did it last hail in Olin?

The most recent report in this data is from August 10, 2017 (1.75 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

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

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