Hail History

Hail history for Slater, Iowa

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

Readout · Slater

Last hail
Mar 31, 2023
1.00 in, quarter size
Hail days, last 5 years
1
since Nov 3, 2021 · 2 reports
Largest ever
1.75 in
golf ball · Jun 25, 2008

10 reports on 9 days since 1971 · #479 of 483 Iowa places

Hail map · Slater

Slater Huxley Madrid Luther Ames Woodward 10 mi
  • Under 1 in
  • 1–1.75 in
  • 1.75–2.5 in
  • 2.5–4 in
  • 4 in +
  • No size
10 most recent reports with a location; Story 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 Slater is from March 31, 2023. 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 Slater

The latest hail report in and around Slater is from March 31, 2023, 1.00 in (quarter size). Since November 3, 2021 there has been one hail day; the biggest stones in that time were 1.00 in on March 31, 2023.

Over the 20 years 2006–2025, Slater logged 6 reports on 5 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 #479 of 483 Iowa cities and towns on this site for all-time reports. Slater accounts for 3% of the 325 reports filed in Story County.

0% 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 1.75 in (golf ball) on June 25, 2008 near 2.07 S Kelley.

The busiest year was 2023, with 2 reports on 1 day. Hail here peaks in May (40% of reports); 60% fall between April and June.

Reports a year 2006–2025 average

  • Slater 0.3
  • Story County 10.4
  • Median Iowa town on this site 0.5

Hail days 2006–2025

  • Slater 5
  • Story County 64
  • Median Iowa town on this site 7

Share 2 in or larger of sized reports

  • Slater 0%
  • Story County 10%
  • Median Iowa town on this site 6%

Hail over time

012 1971: 1 reports, largest 1.00 in 1980 1985: 1 reports, largest 1.75 in 1990 2000 2004: 2 reports, largest 1.00 in 2008: 2 reports, largest 1.75 in 2010 2013: 1 reports, largest 1.00 in 2014: 1 reports, largest 1.00 in 2020 2023: 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.
01234 Jan Feb March: 2 reports (20%) Mar Apr May: 4 reports (40%) May June: 2 reports (20%) Jun July: 2 reports (20%) Jul Aug Sep Oct Nov Dec
All 10 reports by calendar month.
Reports per month, 2017–2026. Darker cells had more reports.
YearJanFebMarAprMayJunJulAugSepOctNovDecTotal
2026 0
2025 0
2024 0
2023 2 2
2022 0
2021 0
2020 0
2019 0
2018 0
2017 0

Hail days since Nov 3, 2021

DateReportsLargestStorm page
Mar 31, 2023 2 1.00 in —

Largest hail on record

Largest hail reports in Slater
Date Size Location County Damage Time · source
Jun 25, 2008 1.75 ingolf ball 2.07 S Kelley Story $5K 18:01 local · NCEI
Jun 1, 1985 1.75 ingolf ball — Story — 19:05 local · NCEI
Mar 31, 2023 1.00 inquarter 3.49 S Napier Boone — 13:41 local · NCEI
May 20, 2014 1.00 inquarter 0.94 WSW Slater Story $2K 18:30 local · NCEI
Jul 22, 2013 1.00 inquarter 2.92 NW Alleman Polk $10K 19:50 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 Slater
Date Size Location County Damage Time · source
Mar 31, 2023 1.00 inquarter 3.49 S Napier Boone — 13:41 local · NCEI
Mar 31, 2023 0.75 inpenny 0.51 W Slater Story — 13:38 local · NCEI
May 20, 2014 1.00 inquarter 0.94 WSW Slater Story $2K 18:30 local · NCEI
Jul 22, 2013 1.00 inquarter 2.92 NW Alleman Polk $10K 19:50 local · NCEI
Jul 27, 2008 0.88 innickel Slater Story $2K 21:18 local · NCEI
Jun 25, 2008 1.75 ingolf ball 2.07 S Kelley Story $5K 18:01 local · NCEI
May 24, 2004 1.00 inquarter Des Moines Polk $5K 17:09 local · NCEI
May 22, 2004 1.00 inquarter Ames Story $3K 18:11 local · NCEI
Jun 1, 1985 1.75 ingolf ball — Story — 19:05 local · NCEI
May 18, 1971 1.00 inquarter — Boone — 00:15 local · NCEI

Hail history near Slater

Questions about hail in Slater

How often does it hail in Slater, Iowa?

10 hail reports have been logged in and within about 5 km (3 miles) of Slater since 1971. Over the 20 years 2006–2025 that averages 0.3 reports a year. That ranks #479 of 483 Iowa places by number of reports.

When is hail season in Slater?

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

What is the largest hail recorded in Slater?

1.75 in (golf ball size) on June 25, 2008 near 2.07 S Kelley. 0% of reports here were 2 inches or larger.

When did it last hail in Slater?

The most recent report in this data is from March 31, 2023 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

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

1 separate days with hail reports since November 3, 2021, adding up to 2 reports. The most recent was March 31, 2023.

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.