Hail History

Hail history for Piatt County, Illinois

Every NOAA hail report filed in Piatt County since 1972, with preliminary National Weather Service reports to November 3, 2026.

Readout · Piatt County

Last hail
Nov 18, 2025
1.00 in, quarter size
Hail days, last 5 years
4
since Nov 3, 2021 · 6 reports
Largest ever
4.00 in
grapefruit · Aug 26, 2000

57 reports on 44 days since 1972 · #82 of 103 Illinois counties

Hail map · Piatt County

Monticello Cisco 25 mi
  • Under 1 in
  • 1–1.75 in
  • 1.75–2.5 in
  • 2.5–4 in
  • 4 in +
  • No size
56 most recent reports with a location. Dot size and colour follow hail size. 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 Piatt County is from November 18, 2025. A local roofer can check and document it at no cost.

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What the record says about Piatt County

The latest hail report in Piatt County is from November 18, 2025, 1.00 in (quarter size). Since November 3, 2021 there have been 4 separate hail days; the biggest stones in that time were 1.75 in on June 29, 2023.

Over the 20 years 2006–2025, Piatt County logged 30 reports on 20 hail days, about 1.5 reports a year. That is 42% less than the median Illinois county (2.6 a year) and ranks #82 of 103 Illinois counties for all-time reports. Piatt County holds 0% of all 12,418 hail reports in Illinois.

9% of reports with a size were 2 inches (hen egg) or larger, against 5% for the median Illinois county. The largest hail on record here is 4.00 in (grapefruit) on August 26, 2000 near Bement.

Reports were down 33% in 2016–2025 (12) compared with 2006–2015 (18). The busiest year was 2009, with 5 reports on 2 days. Hail here peaks in May (37% of reports); 70% fall between April and June.

Reports a year 2006–2025 average

  • Piatt County 1.5
  • Median Illinois county 2.6

Hail days 2006–2025

  • Piatt County 20
  • Median Illinois county 34

Share 2 in or larger of sized reports

  • Piatt County 9%
  • Median Illinois county 5%

Hail over time

0246 1972: 1 reports, largest 0.75 in 1973: 1 reports, largest 0.75 in 1974: 1 reports, largest 0.75 in 1980 1981: 1 reports, largest 1.75 in 1985: 1 reports, largest 1.50 in 1986: 3 reports, largest 0.75 in 1987: 1 reports, largest 1.30 in 1990 1993: 1 reports, largest 0.75 in 1997: 1 reports, largest 1.75 in 1998: 2 reports, largest 1.00 in 1999: 3 reports, largest 1.75 in 2000: 3 reports, largest 4.00 in 2000 2001: 1 reports, largest 0.75 in 2002: 1 reports, largest 1.75 in 2003: 4 reports, largest 1.75 in 2005: 2 reports, largest 1.00 in 2006: 5 reports, largest 0.88 in 2007: 1 reports, largest 0.88 in 2009: 5 reports, largest 2.75 in 2010: 2 reports, largest 0.88 in 2010 2011: 1 reports, largest 0.75 in 2014: 2 reports, largest 2.00 in 2015: 2 reports, largest 1.00 in 2016: 4 reports, largest 2.00 in 2018: 1 reports, largest 1.00 in 2019: 1 reports, largest 2.50 in 2020 2022: 1 reports, largest 1.00 in 2023: 3 reports, largest 1.75 in 2025: 2 reports, largest 1.00 in
Reports per year, 1972–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.
0102030 Jan Feb March: 4 reports (7%) Mar April: 14 reports (25%) Apr May: 21 reports (37%) May June: 5 reports (9%) Jun July: 3 reports (5%) Jul August: 6 reports (11%) Aug September: 1 reports (2%) Sep October: 1 reports (2%) Oct November: 2 reports (4%) Nov Dec
All 57 reports by calendar month.
Reports per month, 2017–2026. Darker cells had more reports.
YearJanFebMarAprMayJunJulAugSepOctNovDecTotal
2026 0
2025 11 2
2024 0
2023 3 3
2022 1 1
2021 0
2020 0
2019 1 1
2018 1 1
2017 0

Hail days since Nov 3, 2021

DateReportsLargestStorm page
Nov 18, 2025 1 1.00 in —
May 20, 2025 1 1.00 in —
Jun 29, 2023 3 1.75 in —
Apr 30, 2022 1 1.00 in —

Largest hail on record

Largest hail reports in Piatt County
Date Size Location Damage Time · source
Aug 26, 2000 4.00 ingrapefruit Bement — 20:10 local · NCEI
May 15, 2009 2.75 inbaseball 1.32 W Monticello $255K 17:50 local · NCEI
May 28, 2019 2.50 intennis ball Deland — 13:15 local · NCEI
May 11, 2016 2.00 inhen egg 4 W Monticello — 14:21 local · NCEI
May 21, 2014 2.00 inhen egg White Heath — 16:20 local · NCEI

Size of every report

Most recent reports

Most recent hail reports in Piatt County
Date Size Location Time · source
Nov 18, 2025 1.00 inquarter Cerro Gordo 13:28 local · NCEI
May 20, 2025 1.00 inquarter 0.69 N Cisco 15:03 local · NCEI
Jun 29, 2023 1.00 inquarter 4 S Mansfield 05:15 local · NCEI
Jun 29, 2023 1.75 ingolf ball Monticello 05:15 local · NCEI
Jun 29, 2023 1.00 inquarter 2 NE Cisco 05:01 local · NCEI
Apr 30, 2022 1.00 inquarter Bement 18:30 local · NCEI
May 28, 2019 2.50 intennis ball Deland 13:15 local · NCEI
May 9, 2018 1.00 inquarter 3 N Cisco 18:10 local · NCEI
May 11, 2016 0.88 innickel Monticello 14:24 local · NCEI
May 11, 2016 2.00 inhen egg 4 W Monticello 14:21 local · NCEI
May 11, 2016 0.75 inpenny 1.26 ESE Cisco 14:05 local · NCEI
Mar 31, 2016 0.75 inpenny Monticello 12:23 local · NCEI

Cities and towns in Piatt County

PlaceReportsLargest
Monticello172.75 in
Cisco101.75 in

Smaller places with fewer than 10 reports

These places have too few reports for a page of their own, so their record lives here.

PlaceReportsHail daysLatest
Bement54Apr 30, 2022
Cerro Gordo44Nov 18, 2025
Atwood31Apr 10, 1999
De Land33May 28, 2019
LaPlace33Apr 5, 2010
White Heath33May 21, 2014
Mansfield22Jun 29, 2023
Hammond11Sep 4, 2015

Questions about hail in Piatt County

How often does it hail in Piatt County, Illinois?

57 hail reports have been logged in Piatt County since 1972. Over the 20 years 2006–2025 that averages 1.5 reports a year. That ranks #82 of 103 Illinois counties by number of reports.

When is hail season in Piatt County?

Most reports come in May, April, August. May alone accounts for 37% of all reports.

What is the largest hail recorded in Piatt County?

4.00 in (grapefruit size) on August 26, 2000 near Bement. 9% of reports here were 2 inches or larger.

When did it last hail in Piatt County?

The most recent report in this data is from November 18, 2025 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

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

4 separate days with hail reports since November 3, 2021, adding up to 6 reports. The most recent was November 18, 2025.

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.