Hail History

Hail history for Grain Valley, Missouri

NOAA hail reports in and within about 5 km (3 miles) of Grain Valley since 1966, with preliminary reports to November 3, 2026.

Readout · Grain Valley

Last hail
Apr 3, 2011
1.00 in, quarter size
Hail days, last 5 years
0
since Nov 3, 2021 · 0 reports
Largest ever
1.75 in
golf ball · May 5, 1971

19 reports on 16 days since 1966 · #250 of 491 Missouri places

Hail map · Grain Valley

Grain Valley Blue Springs Oak Grove Independence Lone Jack Lee's Summit Odessa Greenwood 10 mi
  • Under 1 in
  • 1–1.75 in
  • 1.75–2.5 in
  • 2.5–4 in
  • 4 in +
  • No size
19 most recent reports with a location; Jackson County is shaded. Open street map

For homeowners

Concerned about your roof after hail?

Send a request to Moxisync Labs for review. The latest hail report in Grain Valley is from April 3, 2011. We’re building local roofer coverage. Submitting a request does not guarantee a quote or book an inspection.

Phone line opening soon

What would a claim cost you? Try the hail claim calculator

Roofer? Get hail alerts for your area with StormScope

What the record says about Grain Valley

The latest hail report in and around Grain Valley is from April 3, 2011, 1.00 in (quarter size). There has been no hail report here in the five years since November 3, 2021.

Over the 20 years 2006–2025, Grain Valley logged 8 reports on 5 hail days, about 0.4 reports a year. That is 20% less than the median Missouri town on this site (0.5 a year) and ranks #250 of 491 Missouri cities and towns on this site for all-time reports. Grain Valley accounts for 3% of the 677 reports filed in Jackson County.

0% of reports with a size were 2 inches (hen egg) or larger, against 5% for the median Missouri town on this site. The largest hail on record here is 1.75 in (golf ball) on May 5, 1971.

Reports were down 100% in 2016–2025 (0) compared with 2006–2015 (8). The busiest year was 2010, with 4 reports on 1 day. Hail here peaks in May (32% of reports); 68% fall between April and June.

Reports a year 2006–2025 average

  • Grain Valley 0.4
  • Jackson County 18.0
  • Median Missouri town on this site 0.5

Hail days 2006–2025

  • Grain Valley 5
  • Jackson County 105
  • Median Missouri town on this site 9

Share 2 in or larger of sized reports

  • Grain Valley 0%
  • Jackson County 6%
  • Median Missouri town on this site 5%

Hail over time

01234 1966: 1 reports, largest 1.75 in 1968: 1 reports, largest 1.00 in 1970 1971: 2 reports, largest 1.75 in 1972: 1 reports, largest 0.75 in 1980 1990 2000: 1 reports, largest 0.88 in 2000 2003: 4 reports, largest 1.50 in 2005: 1 reports, largest 1.00 in 2006: 1 reports, largest 0.88 in 2008: 1 reports, largest 0.88 in 2009: 1 reports, largest 0.88 in 2010: 4 reports, largest 1.50 in 2010 2011: 1 reports, largest 1.00 in 2020
Reports per year, 1966–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.
0246 Jan Feb March: 1 reports (5%) Mar April: 5 reports (26%) Apr May: 6 reports (32%) May June: 2 reports (11%) Jun July: 1 reports (5%) Jul Aug September: 4 reports (21%) Sep Oct Nov Dec
All 19 reports by calendar month.
Reports per month, 2017–2026. Darker cells had more reports.
YearJanFebMarAprMayJunJulAugSepOctNovDecTotal
2026 0
2025 0
2024 0
2023 0
2022 0
2021 0
2020 0
2019 0
2018 0
2017 0

Largest hail on record

Largest hail reports in Grain Valley
Date Size Location County Time · source
May 5, 1971 1.75 ingolf ball — Jackson 17:20 local · NCEI
May 17, 1966 1.75 ingolf ball — Jackson 16:09 local · NCEI
Sep 18, 2010 1.50 inping pong ball 0.87 SW Grain Vly Jackson 16:30 local · NCEI
Sep 18, 2010 1.50 inping pong ball 0.87 SW Grain Vly Jackson 16:05 local · NCEI
May 9, 2003 1.50 inping pong ball Grain Vly Jackson 20:02 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 Grain Valley
Date Size Location County Time · source
Apr 3, 2011 1.00 inquarter 0.54 W Grain Vly Arpt Jackson 20:35 local · NCEI
Sep 18, 2010 0.88 innickel 0.87 SW Grain Vly Jackson 21:05 local · NCEI
Sep 18, 2010 1.00 inquarter 0.87 SW Grain Vly Jackson 17:30 local · NCEI
Sep 18, 2010 1.50 inping pong ball 0.87 SW Grain Vly Jackson 16:30 local · NCEI
Sep 18, 2010 1.50 inping pong ball 0.87 SW Grain Vly Jackson 16:05 local · NCEI
May 13, 2009 0.88 innickel 0.87 SW Grain Vly Jackson 17:26 local · NCEI
May 1, 2008 0.88 innickel 0.87 SW Grain Vly Jackson 20:43 local · NCEI
Apr 22, 2006 0.88 innickel Grain Vly Jackson 21:40 local · NCEI
May 11, 2005 1.00 inquarter Grain Vly Jackson 15:35 local · NCEI
May 9, 2003 1.50 inping pong ball Grain Vly Jackson 20:02 local · NCEI
Apr 28, 2003 0.75 inpenny 2 NE Taitsville Ray 05:05 local · NCEI
Apr 24, 2003 0.88 innickel Grain Vly Jackson 15:00 local · NCEI

Hail history near Grain Valley

Questions about hail in Grain Valley

How often does it hail in Grain Valley, Missouri?

19 hail reports have been logged in and within about 5 km (3 miles) of Grain Valley since 1966. Over the 20 years 2006–2025 that averages 0.4 reports a year. That ranks #250 of 491 Missouri places by number of reports.

When is hail season in Grain Valley?

Most reports come in May, April, September. May alone accounts for 32% of all reports.

What is the largest hail recorded in Grain Valley?

1.75 in (golf ball size) on May 5, 1971. 0% of reports here were 2 inches or larger.

When did it last hail in Grain Valley?

The most recent report in this data is from April 3, 2011 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

How many hail storms has Grain Valley had in the last five years?

None: there has been no hail report in and within about 5 km (3 miles) of Grain Valley since November 3, 2021. The last one was on April 3, 2011.

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.