Hail History

Hail history for Boone County, Indiana

Every NOAA hail report filed in Boone County since 1955, with preliminary National Weather Service reports to November 3, 2026.

Readout · Boone County

Last hail
Apr 14, 2026
1.50 in, ping pong ball size
Hail days, last 5 years
8
since Nov 3, 2021 · 17 reports
Largest ever
2.75 in
baseball · Sep 18, 1972

129 reports on 77 days since 1955 · #12 of 93 Indiana counties

Hail map · Boone County

Lebanon Zionsville Thorntown Advance 10 mi
  • Under 1 in
  • 1–1.75 in
  • 1.75–2.5 in
  • 2.5–4 in
  • 4 in +
  • No size
129 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 Boone County is from April 14, 2026. A local roofer can check and document it at no cost.

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What the record says about Boone County

The latest hail report in Boone County is from April 14, 2026, 1.50 in (ping pong ball size). Since November 3, 2021 there have been 8 separate hail days; the biggest stones in that time were 2.50 in on June 25, 2023.

Over the 20 years 2006–2025, Boone County logged 91 reports on 46 hail days, about 4.5 reports a year. That is about twice the median Indiana county (1.9 a year) and ranks #12 of 93 Indiana counties for all-time reports. Boone County holds 2% of all 7,691 hail reports in Indiana.

5% of reports with a size were 2 inches (hen egg) or larger, against 5% for the median Indiana county. The largest hail on record here is 2.75 in (baseball) on September 18, 1972.

Reports were down 31% in 2016–2025 (37) compared with 2006–2015 (54). The busiest year was 2014, with 12 reports on 5 days. Hail here peaks in May (29% of reports); 56% fall between April and June.

Reports a year 2006–2025 average

  • Boone County 4.5
  • Median Indiana county 1.9

Hail days 2006–2025

  • Boone County 46
  • Median Indiana county 23

Share 2 in or larger of sized reports

  • Boone County 5%
  • Median Indiana county 5%

Hail over time

051015 1955: 1 reports, largest 2.25 in 1960 1968: 1 reports, largest 0.75 in 1970 1972: 1 reports, largest 2.75 in 1974: 1 reports, largest 2.50 in 1976: 1 reports, largest 1.75 in 1977: 1 reports, largest 1.75 in 1980: 2 reports, largest 1.75 in 1980 1981: 1 reports, largest 1.00 in 1983: 2 reports, largest 0.75 in 1985: 1 reports, largest 0.75 in 1989: 1 reports, largest 1.75 in 1990: 3 reports, largest 1.75 in 1990 1992: 1 reports, largest 0.75 in 1996: 4 reports, largest 1.75 in 1998: 1 reports, largest 1.75 in 1999: 1 reports, largest 1.75 in 2000: 3 reports, largest 1.75 in 2000 2001: 1 reports, largest 1.00 in 2002: 1 reports, largest 0.75 in 2003: 4 reports, largest 1.75 in 2005: 5 reports, largest 1.75 in 2006: 9 reports, largest 1.00 in 2007: 5 reports, largest 1.50 in 2008: 2 reports, largest 0.88 in 2009: 1 reports, largest 0.75 in 2010 2011: 11 reports, largest 1.50 in 2012: 3 reports, largest 0.88 in 2013: 2 reports, largest 1.00 in 2014: 12 reports, largest 1.75 in 2015: 9 reports, largest 1.75 in 2016: 1 reports, largest 1.00 in 2017: 11 reports, largest 1.75 in 2020: 6 reports, largest 1.00 in 2020 2021: 3 reports, largest 1.00 in 2023: 7 reports, largest 2.50 in 2024: 6 reports, largest 1.75 in 2025: 3 reports, largest 2.00 in 2026: 1 reports, largest 1.50 in
Reports per year, 1955–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.
010203040 January: 1 reports (1%) Jan February: 2 reports (2%) Feb March: 30 reports (23%) Mar April: 20 reports (16%) Apr May: 37 reports (29%) May June: 15 reports (12%) Jun July: 7 reports (5%) Jul August: 8 reports (6%) Aug September: 5 reports (4%) Sep October: 3 reports (2%) Oct November: 1 reports (1%) Nov Dec
All 129 reports by calendar month.
Reports per month, 2017–2026. Darker cells had more reports.
YearJanFebMarAprMayJunJulAugSepOctNovDecTotal
2026 1 1
2025 21 3
2024 42 6
2023 52 7
2022 0
2021 21 3
2020 33 6
2019 0
2018 0
2017 821 11

Hail days since Nov 3, 2021

DateReportsLargestStorm page
Apr 14, 2026 1 1.50 in —
Apr 2, 2025 1 0.75 in —
Mar 19, 2025 2 2.00 in —
May 24, 2024 2 1.00 in —
Mar 14, 2024 4 1.75 in —
Jun 25, 2023 2 2.50 in —
May 7, 2023 4 1.60 in —
May 6, 2023 1 1.00 in —

Largest hail on record

Largest hail reports in Boone County
Date Size Location Time · source
Sep 18, 1972 2.75 inbaseball — 11:20 local · NCEI
Jun 25, 2023 2.50 intennis ball 1.58 E Terhune 14:45 local · NCEI
Jul 27, 1974 2.50 intennis ball — 15:30 local · NCEI
Nov 15, 1955 2.25 inhen egg — 23:00 local · NCEI
Mar 19, 2025 2.00 inhen egg Lebanon 18:53 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 Boone County
Date Size Location Time · source
Apr 14, 2026 1.50 inping pong ball 1.48 NNE Milledgeville 16:15 local · NCEI
Apr 2, 2025 0.75 inpenny 2.11 NW Eagle Vlg 06:28 local · NCEI
Mar 19, 2025 2.00 inhen egg Lebanon 18:53 local · NCEI
Mar 19, 2025 1.00 inquarter 1 N Jamestown 18:41 local · NCEI
May 24, 2024 1.00 inquarter 0.53 E Eagle Vlg 18:04 local · NCEI
May 24, 2024 0.75 inpenny 2.11 NW Eagle Vlg 18:01 local · NCEI
Mar 14, 2024 1.00 inquarter 0.69 S Max 18:57 local · NCEI
Mar 14, 2024 1.75 ingolf ball Whitestown 18:18 local · NCEI
Mar 14, 2024 1.50 inping pong ball 0.53 W Lebanon Boone Co Arp 18:08 local · NCEI
Mar 14, 2024 0.75 inpenny 2.11 NW Eagle Vlg 11:02 local · NCEI
Jun 25, 2023 2.50 intennis ball 1.58 E Terhune 14:45 local · NCEI
Jun 25, 2023 2.00 inhen egg 0.87 SE Mechanicsburg 14:25 local · NCEI

Cities and towns in Boone County

PlaceReportsLargest
Lebanon392.50 in
Zionsville381.75 in
Thorntown211.50 in
Advance101.00 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
Jamestown98Mar 19, 2025
Whitestown55Jul 13, 2015
Elizaville44May 1, 2016

Questions about hail in Boone County

How often does it hail in Boone County, Indiana?

129 hail reports have been logged in Boone County since 1955. Over the 20 years 2006–2025 that averages 4.5 reports a year. That ranks #12 of 93 Indiana counties by number of reports.

When is hail season in Boone County?

Most reports come in May, March, April. May alone accounts for 29% of all reports.

What is the largest hail recorded in Boone County?

2.75 in (baseball size) on September 18, 1972. 5% of reports here were 2 inches or larger.

When did it last hail in Boone County?

The most recent report in this data is from April 14, 2026 (1.50 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

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

8 separate days with hail reports since November 3, 2021, adding up to 17 reports. The most recent was April 14, 2026.

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.