Hail History

Hail history for Oswego, Kansas

NOAA hail reports in and within about 5 km (3 miles) of Oswego since 1959, with preliminary reports to November 3, 2026.

Readout · Oswego

Last hail
May 22, 2025
0.88 in, nickel size
Hail days, last 5 years
2
since Nov 3, 2021 · 3 reports
Largest ever
1.75 in
golf ball · Mar 12, 2003

30 reports on 24 days since 1959 · #281 of 612 Kansas places

Hail map · Oswego

Oswego Hallowell Chetopa Bartlett Altamont West Mineral McCune Parsons 10 mi
  • Under 1 in
  • 1–1.75 in
  • 1.75–2.5 in
  • 2.5–4 in
  • 4 in +
  • No size
30 most recent reports with a location; Labette County is shaded. Open street map

For homeowners

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What the record says about Oswego

The latest hail report in and around Oswego is from May 22, 2025, 0.88 in (nickel size). Since November 3, 2021 there have been 2 separate hail days; the biggest stones in that time were 1.00 in on April 5, 2023.

Over the 20 years 2006–2025, Oswego logged 12 reports on 10 hail days, about 0.6 reports a year. That is about the same as the median Kansas town on this site (0.7 a year) and ranks #281 of 612 Kansas cities and towns on this site for all-time reports. Oswego accounts for 13% of the 235 reports filed in Labette County.

0% of reports with a size were 2 inches (hen egg) or larger, against 7% for the median Kansas town on this site. The largest hail on record here is 1.75 in (golf ball) on March 12, 2003 near 3 S Oswego.

Reports held about level in 2016–2025 (6) compared with 2006–2015 (6). The busiest year was 1992, with 3 reports on 2 days. Hail here peaks in May (33% of reports); 60% fall between April and June.

Reports a year 2006–2025 average

  • Oswego 0.6
  • Labette County 6.3
  • Median Kansas town on this site 0.7

Hail days 2006–2025

  • Oswego 10
  • Labette County 60
  • Median Kansas town on this site 10

Share 2 in or larger of sized reports

  • Oswego 0%
  • Labette County 5%
  • Median Kansas town on this site 7%

Hail over time

0123 1959: 1 reports, largest 0.75 in 1960 1970: 1 reports, largest 1.00 in 1970 1975: 1 reports, largest 1.75 in 1980 1983: 2 reports, largest 1.75 in 1985: 2 reports, largest 1.75 in 1987: 2 reports, largest 1.00 in 1990 1991: 1 reports, largest 0.75 in 1992: 3 reports, largest 1.00 in 1997: 1 reports, largest 1.25 in 1999: 1 reports, largest 0.75 in 2000 2001: 1 reports, largest 1.00 in 2003: 2 reports, largest 1.75 in 2006: 1 reports, largest 0.75 in 2008: 1 reports, largest 1.00 in 2009: 2 reports, largest 1.00 in 2010 2012: 1 reports, largest 0.75 in 2015: 1 reports, largest 0.75 in 2017: 2 reports, largest 1.50 in 2020: 1 reports, largest 0.75 in 2020 2023: 2 reports, largest 1.00 in 2025: 1 reports, largest 0.88 in
Reports per year, 1959–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.
036912 Jan February: 2 reports (7%) Feb March: 3 reports (10%) Mar April: 8 reports (27%) Apr May: 10 reports (33%) May Jun July: 2 reports (7%) Jul Aug September: 3 reports (10%) Sep Oct November: 2 reports (7%) Nov Dec
All 30 reports by calendar month.
Reports per month, 2017–2026. Darker cells had more reports.
YearJanFebMarAprMayJunJulAugSepOctNovDecTotal
2026 0
2025 1 1
2024 0
2023 2 2
2022 0
2021 0
2020 1 1
2019 0
2018 0
2017 2 2

Hail days since Nov 3, 2021

DateReportsLargestStorm page
May 22, 2025 1 0.88 in —
Apr 5, 2023 2 1.00 in —

Largest hail on record

Largest hail reports in Oswego
Date Size Location County Time · source
Mar 12, 2003 1.75 ingolf ball 3 S Oswego Labette 22:10 local · NCEI
May 13, 1985 1.75 ingolf ball — Labette 13:20 local · NCEI
May 13, 1985 1.75 ingolf ball — Labette 12:20 local · NCEI
Sep 6, 1983 1.75 ingolf ball — Labette 18:00 local · NCEI
Apr 29, 1975 1.75 ingolf ball — Labette 23:12 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 Time · source
May 22, 2025 0.88 innickel 0.88 SW Oswego Labette 00:01 local · NCEI
Apr 5, 2023 1.00 inquarter 0.88 SW Oswego Labette 01:55 local · NCEI
Apr 5, 2023 1.00 inquarter 3.3 W Hallowell Cherokee 01:54 local · NCEI
Nov 24, 2020 0.75 inpenny 0.88 SW Oswego Labette 20:36 local · NCEI
Feb 28, 2017 1.50 inping pong ball 0.55 W Oswego Labette 23:48 local · NCEI
Feb 28, 2017 1.00 inquarter 0.55 W Oswego Labette 23:30 local · NCEI
Apr 2, 2015 0.75 inpenny 0.55 W Oswego Labette 19:31 local · NCEI
Apr 13, 2012 0.75 inpenny 0.55 W Oswego Labette 16:30 local · NCEI
Jul 16, 2009 0.75 inpenny 2.65 SE Labette Labette 14:35 local · NCEI
May 13, 2009 1.00 inquarter 0.55 W Oswego Labette 20:30 local · NCEI
May 30, 2008 1.00 inquarter 3.02 SE Labette Labette 21:30 local · NCEI
Mar 30, 2006 0.75 inpenny Oswego Labette 20:50 local · NCEI

Hail history near Oswego

Questions about hail in Oswego

How often does it hail in Oswego, Kansas?

30 hail reports have been logged in and within about 5 km (3 miles) of Oswego since 1959. Over the 20 years 2006–2025 that averages 0.6 reports a year. That ranks #281 of 612 Kansas places by number of reports.

When is hail season in Oswego?

Most reports come in May, April, March. May alone accounts for 33% of all reports.

What is the largest hail recorded in Oswego?

1.75 in (golf ball size) on March 12, 2003 near 3 S Oswego. 0% of reports here were 2 inches or larger.

When did it last hail in Oswego?

The most recent report in this data is from May 22, 2025 (0.88 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?

2 separate days with hail reports since November 3, 2021, adding up to 3 reports. The most recent was May 22, 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.