Hail History

Hail history for Granville, Iowa

NOAA hail reports in and within about 5 km (3 miles) of Granville since 2004, with preliminary reports to November 3, 2026.

Readout · Granville

Last hail
Aug 27, 2018
0.75 in, penny size
Hail days, last 5 years
0
since Nov 3, 2021 · 0 reports
Largest ever
2.00 in
hen egg · Jul 25, 2012

11 reports on 6 days since 2004 · #407 of 483 Iowa places

Hail map · Granville

Granville Hospers Alton Orange City Sheldon 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; Sioux 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 Granville is from August 27, 2018. A local roofer can check and document it at no cost.

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What the record says about Granville

The latest hail report in and around Granville is from August 27, 2018, 0.75 in (penny size). There has been no hail report here in the five years since November 3, 2021.

Over the 20 years 2006–2025, Granville logged 10 reports on 5 hail days, about 0.5 reports a year. That is 11% more than the median Iowa town on this site (0.5 a year) and ranks #407 of 483 Iowa cities and towns on this site for all-time reports. Granville accounts for 4% of the 269 reports filed in Sioux County.

27% 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 July 25, 2012 near 4.61 SSW Philby.

Reports were down 75% in 2016–2025 (2) compared with 2006–2015 (8). The busiest year was 2012, with 7 reports on 2 days. Hail here peaks in July (55% of reports); 27% fall between April and June.

Reports a year 2006–2025 average

  • Granville 0.5
  • Sioux County 6.8
  • Median Iowa town on this site 0.5

Hail days 2006–2025

  • Granville 5
  • Sioux County 66
  • Median Iowa town on this site 7

Share 2 in or larger of sized reports

  • Granville 27%
  • Sioux County 6%
  • Median Iowa town on this site 6%

Hail over time

02468 2004: 1 reports, largest 1.00 in 2005 2008: 1 reports, largest 0.75 in 2010 2012: 7 reports, largest 2.00 in 2015 2016: 1 reports, largest 1.00 in 2018: 1 reports, largest 0.75 in 2020 2025
Reports per year, 2004–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.
0246 Jan Feb Mar Apr May June: 3 reports (27%) Jun July: 6 reports (55%) Jul August: 1 reports (9%) Aug September: 1 reports (9%) Sep Oct 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 1 1
2017 0

Largest hail on record

Largest hail reports in Granville
Date Size Location County Time · source
Jul 25, 2012 2.00 inhen egg 4.61 SSW Philby O'brien 16:35 local · NCEI
Jul 25, 2012 2.00 inhen egg 2.45 NE Granville Sioux 16:25 local · NCEI
Jul 25, 2012 2.00 inhen egg 2.02 E Granville Sioux 16:25 local · NCEI
Jul 25, 2012 1.75 ingolf ball 2.81 S Hospers Sioux 16:34 local · NCEI
Jul 25, 2012 1.75 ingolf ball 1.38 N Granville Sioux 16:20 local · NCEI

Size of every report

Most recent reports

Most recent hail reports in Granville
Date Size Location County Time · source
Aug 27, 2018 0.75 inpenny 1.52 E Granville Sioux 14:48 local · NCEI
Jun 10, 2016 1.00 inquarter 1.52 E Granville Sioux 22:50 local · NCEI
Sep 6, 2012 1.00 inquarter 3.67 NW Germantown O'brien 20:25 local · NCEI
Jul 25, 2012 2.00 inhen egg 4.61 SSW Philby O'brien 16:35 local · NCEI
Jul 25, 2012 1.75 ingolf ball 2.81 S Hospers Sioux 16:34 local · NCEI
Jul 25, 2012 1.00 inquarter 3.27 NW Germantown O'brien 16:30 local · NCEI
Jul 25, 2012 2.00 inhen egg 2.45 NE Granville Sioux 16:25 local · NCEI
Jul 25, 2012 2.00 inhen egg 2.02 E Granville Sioux 16:25 local · NCEI
Jul 25, 2012 1.75 ingolf ball 1.38 N Granville Sioux 16:20 local · NCEI
Jun 5, 2008 0.75 inpenny 2.88 ENE Granville Sioux 12:15 local · NCEI
Jun 8, 2004 1.00 inquarter 3 W Germantown O'brien 16:10 local · NCEI

Hail history near Granville

Questions about hail in Granville

How often does it hail in Granville, Iowa?

11 hail reports have been logged in and within about 5 km (3 miles) of Granville since 2004. Over the 20 years 2006–2025 that averages 0.5 reports a year. That ranks #407 of 483 Iowa places by number of reports.

When is hail season in Granville?

Most reports come in July, June, August. July alone accounts for 55% of all reports.

What is the largest hail recorded in Granville?

2.00 in (hen egg size) on July 25, 2012 near 4.61 SSW Philby. 27% of reports here were 2 inches or larger.

When did it last hail in Granville?

The most recent report in this data is from August 27, 2018 (0.75 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

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

None: there has been no hail report in and within about 5 km (3 miles) of Granville since November 3, 2021. The last one was on August 27, 2018.

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.