Hail History

Hail history for Coralville, Iowa

NOAA hail reports in and within about 5 km (3 miles) of Coralville since 1971, with preliminary reports to November 3, 2026.

Readout · Coralville

Last hail
May 21, 2024
1.00 in, quarter size
Hail days, last 5 years
4
since Nov 3, 2021 · 4 reports
Largest ever
2.00 in
hen egg · May 31, 1971

20 reports on 17 days since 1971 · #158 of 483 Iowa places

Hail map · Coralville

Coralville North Liberty Tiffin Iowa City Solon Hills West Branch Riverside Kalona 10 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; Johnson County is shaded. Open street map

For homeowners

Roof damage after hail? Get a free inspection

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 Coralville is from May 21, 2024. A local roofer can check and document it at no cost.

Phone line opening soon

What would a claim cost you? Try the hail claim calculator

Preview: this form is not connected yet. Nothing you enter is sent or stored.

Roofer? Get hail alerts for your area with StormScope

What the record says about Coralville

The latest hail report in and around Coralville is from May 21, 2024, 1.00 in (quarter size). Since November 3, 2021 there have been 4 separate hail days; the biggest stones in that time were 1.00 in on May 21, 2024.

Over the 20 years 2006–2025, Coralville logged 15 reports on 12 hail days, about 0.8 reports a year. That is 67% more than the median Iowa town on this site (0.5 a year) and ranks #158 of 483 Iowa cities and towns on this site for all-time reports. Coralville accounts for 9% of the 229 reports filed in Johnson County.

5% 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 31, 1971.

Reports held about level in 2016–2025 (8) compared with 2006–2015 (7). The busiest year was 2024, with 2 reports on 2 days. Hail here peaks in July (30% of reports); 55% fall between April and June.

Reports a year 2006–2025 average

  • Coralville 0.8
  • Johnson County 8.0
  • Median Iowa town on this site 0.5

Hail days 2006–2025

  • Coralville 12
  • Johnson County 65
  • Median Iowa town on this site 7

Share 2 in or larger of sized reports

  • Coralville 5%
  • Johnson County 6%
  • Median Iowa town on this site 6%

Hail over time

012 1971: 1 reports, largest 2.00 in 1975: 1 reports, largest 1.00 in 1980: 1 reports, largest 1.00 in 1980 1990 1997: 1 reports, largest 1.75 in 1998: 1 reports, largest 1.75 in 2000 2006: 1 reports, largest 0.88 in 2007: 1 reports, largest 1.75 in 2008: 2 reports, largest 1.00 in 2009: 2 reports, largest 0.88 in 2010 2014: 1 reports, largest 1.00 in 2017: 1 reports, largest 1.00 in 2018: 1 reports, largest 0.75 in 2020: 2 reports, largest 1.50 in 2020 2023: 2 reports, largest 1.00 in 2024: 2 reports, largest 1.00 in
Reports per year, 1971–2026. 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 (5%) Mar April: 2 reports (10%) Apr May: 5 reports (25%) May June: 4 reports (20%) Jun July: 6 reports (30%) Jul August: 2 reports (10%) Aug 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 11 2
2023 11 2
2022 0
2021 0
2020 2 2
2019 0
2018 1 1
2017 1 1

Hail days since Nov 3, 2021

DateReportsLargestStorm page
May 21, 2024 1 1.00 in —
Apr 16, 2024 1 0.88 in —
May 7, 2023 1 1.00 in —
Mar 31, 2023 1 1.00 in —

Largest hail on record

Largest hail reports in Coralville
Date Size Location County Time · source
May 31, 1971 2.00 inhen egg — Johnson 21:45 local · NCEI
Jul 16, 2007 1.75 ingolf ball 1.24 SE Oakdale Johnson 15:30 local · NCEI
Jun 18, 1998 1.75 ingolf ball Coralville Johnson 15:30 local · NCEI
May 18, 1997 1.75 ingolf ball Coralville Johnson 17:42 local · NCEI
Jul 11, 2020 1.50 inping pong ball 1.24 SE Oakdale Johnson 17:25 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 Coralville
Date Size Location County Time · source
May 21, 2024 1.00 inquarter 0.52 W Coralville Johnson 18:08 local · NCEI
Apr 16, 2024 0.88 innickel 1.24 SE Oakdale Johnson 15:15 local · NCEI
May 7, 2023 1.00 inquarter 0.86 SW Oakdale Johnson 16:13 local · NCEI
Mar 31, 2023 1.00 inquarter 1.24 SE Oakdale Johnson 15:59 local · NCEI
Jul 11, 2020 1.00 inquarter 0.52 E Oakdale Johnson 17:28 local · NCEI
Jul 11, 2020 1.50 inping pong ball 1.24 SE Oakdale Johnson 17:25 local · NCEI
May 14, 2018 0.75 inpenny 1.03 W Coralville Johnson 05:00 local · NCEI
Jul 21, 2017 1.00 inquarter 3.61 SSE Tiffin Johnson 16:22 local · NCEI
Aug 4, 2014 1.00 inquarter 1.24 SE Oakdale Johnson 17:53 local · NCEI
Jul 10, 2009 0.75 inpenny 1.24 NE Oakdale Johnson 23:00 local · NCEI
Jul 10, 2009 0.88 innickel 0.69 S Oakdale Johnson 22:50 local · NCEI
Jun 14, 2008 1.00 inquarter 1.24 NE Oakdale Johnson 15:32 local · NCEI

Hail history near Coralville

Questions about hail in Coralville

How often does it hail in Coralville, Iowa?

20 hail reports have been logged in and within about 5 km (3 miles) of Coralville since 1971. Over the 20 years 2006–2025 that averages 0.8 reports a year. That ranks #158 of 483 Iowa places by number of reports.

When is hail season in Coralville?

Most reports come in July, May, June. July alone accounts for 30% of all reports.

What is the largest hail recorded in Coralville?

2.00 in (hen egg size) on May 31, 1971. 5% of reports here were 2 inches or larger.

When did it last hail in Coralville?

The most recent report in this data is from May 21, 2024 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

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

4 separate days with hail reports since November 3, 2021, adding up to 4 reports. The most recent was May 21, 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.