Hail History

Hail history for Royal, Iowa

NOAA hail reports in and within about 5 km (3 miles) of Royal since 1983, with preliminary reports to November 3, 2026.

Readout · Royal

Last hail
May 20, 2024
2.00 in, hen egg size
Hail days, last 5 years
1
since Nov 3, 2021 · 3 reports
Largest ever
3.00 in
teacup · May 20, 2024

20 reports on 17 days since 1983 · #167 of 483 Iowa places

Hail map · Royal

Royal Everly Spencer Peterson Hartley Sutherland Gillett Grove 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; Clay County is shaded. Open street map

For homeowners

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Hail bruises shingles and cracks seals in ways you can't see from the ground, and most insurers set a claim deadline after the storm. The latest hail report in Royal is from May 20, 2024. A local roofer can check and document it at no cost.

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What the record says about Royal

The latest hail report in and around Royal is from May 20, 2024, 2.00 in (hen egg size). Since November 3, 2021 there has been one hail day; the biggest stones in that time were 3.00 in on May 20, 2024.

Over the 20 years 2006–2025, Royal logged 6 reports on 4 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 #167 of 483 Iowa cities and towns on this site for all-time reports. Royal accounts for 8% of the 253 reports filed in Clay County.

20% 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 3.00 in (teacup) on May 20, 2024 near 3.11 WSW Royal.

The busiest year was 2024, with 3 reports on 1 day. Hail here peaks in May (25% of reports); 55% fall between April and June.

Reports a year 2006–2025 average

  • Royal 0.3
  • Clay County 4.3
  • Median Iowa town on this site 0.5

Hail days 2006–2025

  • Royal 4
  • Clay County 47
  • Median Iowa town on this site 7

Share 2 in or larger of sized reports

  • Royal 20%
  • Clay County 7%
  • Median Iowa town on this site 6%

Hail over time

0123 1983: 1 reports, largest 1.75 in 1989: 1 reports, largest 1.75 in 1990 1996: 1 reports, largest 0.75 in 1997: 1 reports, largest 1.00 in 1998: 1 reports, largest 1.75 in 2000: 1 reports, largest 0.75 in 2000 2001: 2 reports, largest 1.00 in 2002: 2 reports, largest 1.50 in 2004: 2 reports, largest 2.75 in 2005: 2 reports, largest 0.88 in 2008: 1 reports, largest 1.00 in 2009: 1 reports, largest 1.00 in 2010 2016: 1 reports, largest 0.75 in 2020 2024: 3 reports, largest 3.00 in
Reports per year, 1983–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.
0246 Jan Feb Mar April: 3 reports (15%) Apr May: 5 reports (25%) May June: 3 reports (15%) Jun July: 3 reports (15%) Jul August: 3 reports (15%) Aug September: 2 reports (10%) Sep October: 1 reports (5%) 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 3 3
2023 0
2022 0
2021 0
2020 0
2019 0
2018 0
2017 0

Hail days since Nov 3, 2021

DateReportsLargestStorm page
May 20, 2024 3 3.00 in —

Largest hail on record

Largest hail reports in Royal
Date Size Location County Time · source
May 20, 2024 3.00 inteacup 3.11 WSW Royal Clay 18:44 local · NCEI
May 21, 2004 2.75 inbaseball 2 E Royal Clay 16:19 local · NCEI
May 20, 2024 2.50 intennis ball 1.66 WNW Royal Clay 18:40 local · NCEI
May 20, 2024 2.00 inhen egg Royal Clay 18:48 local · NCEI
May 21, 2004 1.75 ingolf ball 1 SE Royal Clay 16:17 local · NCEI

Size of every report

Most recent reports

Most recent hail reports in Royal
Date Size Location County Time · source
May 20, 2024 2.00 inhen egg Royal Clay 18:48 local · NCEI
May 20, 2024 3.00 inteacup 3.11 WSW Royal Clay 18:44 local · NCEI
May 20, 2024 2.50 intennis ball 1.66 WNW Royal Clay 18:40 local · NCEI
Jun 10, 2016 0.75 inpenny Royal Clay 20:51 local · NCEI
Jul 7, 2009 1.00 inquarter 2.07 S Royal Clay 19:45 local · NCEI
Aug 13, 2008 1.00 inquarter 0.69 S Royal Clay 18:15 local · NCEI
Sep 8, 2005 0.88 innickel 2 NE Royal Clay 05:45 local · NCEI
Jun 9, 2005 0.88 innickel 2 E Royal Clay 15:00 local · NCEI
May 21, 2004 2.75 inbaseball 2 E Royal Clay 16:19 local · NCEI
May 21, 2004 1.75 ingolf ball 1 SE Royal Clay 16:17 local · NCEI
Oct 1, 2002 1.50 inping pong ball Royal Clay 15:31 local · NCEI
Apr 16, 2002 0.88 innickel Royal Clay 21:10 local · NCEI

Hail history near Royal

Questions about hail in Royal

How often does it hail in Royal, Iowa?

20 hail reports have been logged in and within about 5 km (3 miles) of Royal since 1983. Over the 20 years 2006–2025 that averages 0.3 reports a year. That ranks #167 of 483 Iowa places by number of reports.

When is hail season in Royal?

Most reports come in May, April, June. May alone accounts for 25% of all reports.

What is the largest hail recorded in Royal?

3.00 in (teacup size) on May 20, 2024 near 3.11 WSW Royal. 20% of reports here were 2 inches or larger.

When did it last hail in Royal?

The most recent report in this data is from May 20, 2024 (2.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

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

1 separate days with hail reports since November 3, 2021, adding up to 3 reports. The most recent was May 20, 2024.

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.