Hail History

Hail history for Oswego, Indiana

NOAA hail reports in and within about 5 km (3 miles) of Oswego since 1980, with preliminary reports to November 3, 2026.

Readout · Oswego

Last hail
Jul 20, 2023
1.00 in, quarter size
Hail days, last 5 years
1
since Nov 3, 2021 · 1 report
Largest ever
2.75 in
baseball · Jun 2, 1980

12 reports on 12 days since 1980 · #143 of 191 Indiana places

Hail map · Oswego

Oswego North Webster Warsaw Syracuse Larwill Tri-Lakes South Whitley 10 mi
  • Under 1 in
  • 1–1.75 in
  • 1.75–2.5 in
  • 2.5–4 in
  • 4 in +
  • No size
12 most recent reports with a location; Kosciusko County is shaded. Open street map

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What the record says about Oswego

The latest hail report in and around Oswego is from July 20, 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 July 20, 2023.

Over the 20 years 2006–2025, Oswego logged 8 reports on 8 hail days, about 0.4 reports a year. That is 11% less than the median Indiana town on this site (0.5 a year) and ranks #143 of 191 Indiana cities and towns on this site for all-time reports. Oswego accounts for 11% of the 109 reports filed in Kosciusko County.

8% of reports with a size were 2 inches (hen egg) or larger, against 3% for the median Indiana town on this site. The largest hail on record here is 2.75 in (baseball) on June 2, 1980.

Reports were down 40% in 2016–2025 (3) compared with 2006–2015 (5). The busiest year was 2003, with 3 reports on 3 days. Hail here peaks in June (33% of reports); 67% fall between April and June.

Reports a year 2006–2025 average

  • Oswego 0.4
  • Kosciusko County 2.4
  • Median Indiana town on this site 0.5

Hail days 2006–2025

  • Oswego 8
  • Kosciusko County 31
  • Median Indiana town on this site 8

Share 2 in or larger of sized reports

  • Oswego 8%
  • Kosciusko County 4%
  • Median Indiana town on this site 3%

Hail over time

0123 1980: 1 reports, largest 2.75 in 1980 1990 2000 2003: 3 reports, largest 1.00 in 2008: 1 reports, largest 0.75 in 2010: 1 reports, largest 1.00 in 2010 2012: 2 reports, largest 0.75 in 2015: 1 reports, largest 1.00 in 2018: 1 reports, largest 0.75 in 2020: 1 reports, largest 1.00 in 2020 2023: 1 reports, largest 1.00 in
Reports per year, 1980–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.
01234 Jan Feb March: 1 reports (8%) Mar April: 1 reports (8%) Apr May: 3 reports (25%) May June: 4 reports (33%) Jun July: 2 reports (17%) Jul Aug September: 1 reports (8%) Sep Oct Nov Dec
All 12 reports by calendar month.
Reports per month, 2017–2026. Darker cells had more reports.
YearJanFebMarAprMayJunJulAugSepOctNovDecTotal
2026 0
2025 0
2024 0
2023 1 1
2022 0
2021 0
2020 1 1
2019 0
2018 1 1
2017 0

Hail days since Nov 3, 2021

DateReportsLargestStorm page
Jul 20, 2023 1 1.00 in —

Largest hail on record

Largest hail reports in Oswego
Date Size Location County Damage Time · source
Jun 2, 1980 2.75 inbaseball — Kosciusko — 17:35 local · NCEI
Jul 20, 2023 1.00 inquarter 0.86 NE Oswego Kosciusko $1K 15:21 local · NCEI
May 14, 2020 1.00 inquarter 1.38 N Oswego Kosciusko — 22:47 local · NCEI
Jul 13, 2015 1.00 inquarter 1.38 N Oswego Kosciusko — 19:55 local · NCEI
Jun 18, 2010 1.00 inquarter 1.38 N Oswego Kosciusko — 18:27 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 Oswego
Date Size Location County Damage Time · source
Jul 20, 2023 1.00 inquarter 0.86 NE Oswego Kosciusko $1K 15:21 local · NCEI
May 14, 2020 1.00 inquarter 1.38 N Oswego Kosciusko — 22:47 local · NCEI
May 14, 2018 0.75 inpenny 1.38 N Oswego Kosciusko — 20:50 local · NCEI
Jul 13, 2015 1.00 inquarter 1.38 N Oswego Kosciusko — 19:55 local · NCEI
Sep 22, 2012 0.75 inpenny 1.62 N Oswego Kosciusko — 11:10 local · NCEI
Jun 29, 2012 0.75 inpenny 1.62 N Oswego Kosciusko — 13:20 local · NCEI
Jun 18, 2010 1.00 inquarter 1.38 N Oswego Kosciusko — 18:27 local · NCEI
Jun 15, 2008 0.75 inpenny 0.86 NE Oswego Kosciusko — 17:23 local · NCEI
May 9, 2003 1.00 inquarter 4 E Leesburg Kosciusko — 20:56 local · NCEI
Apr 30, 2003 0.75 inpenny 4 E Leesburg Kosciusko — 17:38 local · NCEI
Mar 20, 2003 0.75 inpenny 3 SE Laud Whitley — 15:28 local · NCEI
Jun 2, 1980 2.75 inbaseball — Kosciusko — 17:35 local · NCEI

Hail history near Oswego

Questions about hail in Oswego

How often does it hail in Oswego, Indiana?

12 hail reports have been logged in and within about 5 km (3 miles) of Oswego since 1980. Over the 20 years 2006–2025 that averages 0.4 reports a year. That ranks #143 of 191 Indiana places by number of reports.

When is hail season in Oswego?

Most reports come in June, May, July. June alone accounts for 33% of all reports.

What is the largest hail recorded in Oswego?

2.75 in (baseball size) on June 2, 1980. 8% of reports here were 2 inches or larger.

When did it last hail in Oswego?

The most recent report in this data is from July 20, 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 Oswego had in the last five years?

1 separate days with hail reports since November 3, 2021, adding up to 1 reports. The most recent was July 20, 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.