Hail History

Hail history for Atchison County, Missouri

Every NOAA hail report filed in Atchison County since 1967, with preliminary National Weather Service reports to November 3, 2026.

Readout · Atchison County

Last hail
May 18, 2026
1.50 in, ping pong ball size
Hail days, last 5 years
5
since Nov 3, 2021 · 6 reports
Largest ever
2.75 in
baseball · May 22, 1996

162 reports on 93 days since 1967 · #47 of 116 Missouri counties

Hail map · Atchison County

Tarkio Rock Port Westboro Watson Fairfax 25 mi
  • Under 1 in
  • 1–1.75 in
  • 1.75–2.5 in
  • 2.5–4 in
  • 4 in +
  • No size
153 most recent reports with a location. Dot size and colour follow hail size. Open street map

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What the record says about Atchison County

The latest hail report in Atchison County is from May 18, 2026, 1.50 in (ping pong ball size). Since November 3, 2021 there have been 5 separate hail days; the biggest stones in that time were 1.75 in on May 6, 2023.

Over the 20 years 2006–2025, Atchison County logged 89 reports on 44 hail days, about 4.5 reports a year. That is 25% more than the median Missouri county (3.5 a year) and ranks #47 of 116 Missouri counties for all-time reports. Atchison County holds 1% of all 20,478 hail reports in Missouri.

3% of reports with a size were 2 inches (hen egg) or larger, against 6% for the median Missouri county. The largest hail on record here is 2.75 in (baseball) on May 22, 1996 near Tarkio.

Reports were down 61% in 2016–2025 (25) compared with 2006–2015 (64). The busiest year was 2014, with 14 reports on 4 days. Hail here peaks in May (28% of reports); 62% fall between April and June.

Reports a year 2006–2025 average

  • Atchison County 4.5
  • Median Missouri county 3.5

Hail days 2006–2025

  • Atchison County 44
  • Median Missouri county 42

Share 2 in or larger of sized reports

  • Atchison County 3%
  • Median Missouri county 6%

Hail over time

051015 1967: 2 reports, largest 1.25 in 1970: 1 reports, largest 1.00 in 1970 1973: 1 reports, largest 1.75 in 1974: 1 reports, largest 1.75 in 1976: 1 reports, largest 1.75 in 1980 1981: 3 reports, largest 1.75 in 1982: 1 reports, largest 0.75 in 1986: 1 reports, largest 1.75 in 1987: 1 reports, largest 1.75 in 1990 1991: 2 reports, largest 1.00 in 1992: 3 reports, largest 0.75 in 1993: 7 reports, largest 2.75 in 1994: 1 reports, largest 2.50 in 1996: 7 reports, largest 2.75 in 1997: 3 reports, largest 1.75 in 1998: 3 reports, largest 2.00 in 2000: 8 reports, largest 1.00 in 2000 2001: 5 reports, largest 1.00 in 2002: 4 reports, largest 1.00 in 2003: 4 reports, largest 1.00 in 2004: 13 reports, largest 2.00 in 2006: 1 reports, largest 0.88 in 2007: 3 reports, largest 1.00 in 2008: 9 reports, largest 1.00 in 2009: 6 reports, largest 1.25 in 2010: 4 reports, largest 1.75 in 2010 2011: 10 reports, largest 1.75 in 2012: 9 reports, largest 1.75 in 2013: 8 reports, largest 1.75 in 2014: 14 reports, largest 1.75 in 2016: 10 reports, largest 1.25 in 2017: 4 reports, largest 1.75 in 2018: 3 reports, largest 1.00 in 2019: 1 reports, largest 1.75 in 2020: 1 reports, largest 1.00 in 2020 2021: 1 reports, largest 1.00 in 2022: 2 reports, largest 1.00 in 2023: 2 reports, largest 1.75 in 2024: 1 reports, largest 1.00 in 2026: 1 reports, largest 1.50 in
Reports per year, 1967–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.
0204060 Jan February: 1 reports (1%) Feb March: 20 reports (12%) Mar April: 21 reports (13%) Apr May: 45 reports (28%) May June: 35 reports (22%) Jun July: 6 reports (4%) Jul August: 19 reports (12%) Aug September: 15 reports (9%) Sep Oct Nov Dec
All 162 reports by calendar month.
Reports per month, 2017–2026. Darker cells had more reports.
YearJanFebMarAprMayJunJulAugSepOctNovDecTotal
2026 1 1
2025 0
2024 1 1
2023 2 2
2022 11 2
2021 1 1
2020 1 1
2019 1 1
2018 12 3
2017 22 4

Hail days since Nov 3, 2021

DateReportsLargestStorm page
May 18, 2026 1 1.50 in —
Apr 26, 2024 1 1.00 in —
May 6, 2023 2 1.75 in —
Jun 16, 2022 1 1.00 in —
Mar 5, 2022 1 0.88 in —

Largest hail on record

Largest hail reports in Atchison County
Date Size Location Damage Time · source
May 22, 1996 2.75 inbaseball Tarkio — 22:30 local · NCEI
Sep 2, 1993 2.75 inbaseball Tarkio $500K 11:45 local · NCEI
Jun 25, 1994 2.50 intennis ball Fairfax $500K 19:00 local · NCEI
May 24, 2004 2.00 inhen egg 10 ESE Fairfax — 15:11 local · NCEI
May 19, 1998 2.00 inhen egg Westboro — 08:50 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 Atchison County
Date Size Location Time · source
May 18, 2026 1.50 inping pong ball 4.26 E Westboro 16:23 local · NCEI
Apr 26, 2024 1.00 inquarter 2.38 ESE Nishnabotna 16:30 local · NCEI
May 6, 2023 1.75 ingolf ball 0.51 N Westboro 15:44 local · NCEI
May 6, 2023 1.00 inquarter 0.87 SE Linden 15:19 local · NCEI
Jun 16, 2022 1.00 inquarter 0.69 N Fairfax 22:55 local · NCEI
Mar 5, 2022 0.88 innickel 0.69 N Westboro 14:45 local · NCEI
Jun 24, 2021 1.00 inquarter 4.18 N Watson 18:18 local · NCEI
Jun 9, 2020 1.00 inquarter 1.05 W Phelps City 19:16 local · NCEI
Jun 25, 2019 1.75 ingolf ball 0.53 E Watson 18:06 local · NCEI
May 28, 2018 1.00 inquarter 1.26 ESE Rockport 17:13 local · NCEI
May 2, 2018 0.88 innickel 0.87 NE Fairfax 16:25 local · NCEI
Apr 13, 2018 0.88 innickel 3.74 W Westboro 16:33 local · NCEI

Cities and towns in Atchison County

PlaceReportsLargest
Tarkio342.75 in
Rock Port331.75 in
Westboro232.00 in
Watson141.75 in
Fairfax101.25 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
Phelps City44Jun 9, 2020

Questions about hail in Atchison County

How often does it hail in Atchison County, Missouri?

162 hail reports have been logged in Atchison County since 1967. Over the 20 years 2006–2025 that averages 4.5 reports a year. That ranks #47 of 116 Missouri counties by number of reports.

When is hail season in Atchison County?

Most reports come in May, June, April. May alone accounts for 28% of all reports.

What is the largest hail recorded in Atchison County?

2.75 in (baseball size) on May 22, 1996 near Tarkio. 3% of reports here were 2 inches or larger.

When did it last hail in Atchison County?

The most recent report in this data is from May 18, 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 Atchison County had in the last five years?

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