Hail History

Hail history for Weldon Spring, Missouri

NOAA hail reports in and within about 5 km (3 miles) of Weldon Spring since 1978, with preliminary reports to November 3, 2026.

Readout · Weldon Spring

Last hail
Apr 17, 2026
1.00 in, quarter size
Hail days, last 5 years
2
since Nov 3, 2021 · 6 reports
Largest ever
2.00 in
hen egg · May 16, 2025

30 reports on 23 days since 1978 · #136 of 491 Missouri places

Hail map · Weldon Spring

Weldon Spring St. Peters Chesterfield O'Fallon Ellisville St. Charles Wildwood Maryland Heights Ballwin 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; St. Charles County is shaded. Open street map

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What the record says about Weldon Spring

The latest hail report in and around Weldon Spring is from April 17, 2026, 1.00 in (quarter size). Since November 3, 2021 there have been 2 separate hail days; the biggest stones in that time were 2.00 in on May 16, 2025.

Over the 20 years 2006–2025, Weldon Spring logged 21 reports on 16 hail days, about 1.1 reports a year. That is about twice the median Missouri town on this site (0.5 a year) and ranks #136 of 491 Missouri cities and towns on this site for all-time reports. Weldon Spring accounts for 9% of the 346 reports filed in St. Charles County.

10% 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 2.00 in (hen egg) on May 16, 2025 near 1.38 S Cottleville.

Reports were down 25% in 2016–2025 (9) compared with 2006–2015 (12). The busiest year was 2025, with 5 reports on 1 day. Hail here peaks in May (43% of reports); 77% fall between April and June.

Reports a year 2006–2025 average

  • Weldon Spring 1.1
  • St. Charles County 10.2
  • Median Missouri town on this site 0.5

Hail days 2006–2025

  • Weldon Spring 16
  • St. Charles County 87
  • Median Missouri town on this site 9

Share 2 in or larger of sized reports

  • Weldon Spring 10%
  • St. Charles County 8%
  • Median Missouri town on this site 5%

Hail over time

0246 1978: 1 reports, largest 1.75 in 1980 1984: 1 reports, largest 0.75 in 1985: 1 reports, largest 0.75 in 1990 1991: 1 reports, largest 1.75 in 1996: 1 reports, largest 0.75 in 2000 2004: 3 reports, largest 1.00 in 2006: 3 reports, largest 1.75 in 2007: 2 reports, largest 1.75 in 2008: 2 reports, largest 0.88 in 2009: 1 reports, largest 0.75 in 2010 2011: 1 reports, largest 0.75 in 2012: 2 reports, largest 1.50 in 2014: 1 reports, largest 0.75 in 2016: 2 reports, largest 0.88 in 2017: 1 reports, largest 1.00 in 2020 2021: 1 reports, largest 1.75 in 2025: 5 reports, largest 2.00 in 2026: 1 reports, largest 1.00 in
Reports per year, 1978–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.
051015 January: 1 reports (3%) Jan February: 1 reports (3%) Feb March: 5 reports (17%) Mar April: 8 reports (27%) Apr May: 13 reports (43%) May June: 2 reports (7%) Jun Jul Aug Sep Oct Nov Dec
All 30 reports by calendar month.
Reports per month, 2017–2026. Darker cells had more reports.
YearJanFebMarAprMayJunJulAugSepOctNovDecTotal
2026 1 1
2025 5 5
2024 0
2023 0
2022 0
2021 1 1
2020 0
2019 0
2018 0
2017 1 1

Hail days since Nov 3, 2021

DateReportsLargestStorm page
Apr 17, 2026 1 1.00 in —
May 16, 2025 5 2.00 in —

Largest hail on record

Largest hail reports in Weldon Spring
Date Size Location County Time · source
May 16, 2025 2.00 inhen egg 1.38 S Cottleville St. Charles 13:24 local · NCEI
May 16, 2025 2.00 inhen egg 0.69 S Weldon Spg St. Charles 13:18 local · NCEI
May 16, 2025 2.00 inhen egg 0.54 W Weldon St. Charles 13:07 local · NCEI
Mar 27, 2021 1.75 ingolf ball 0.7 W Weldon St. Charles 16:05 local · NCEI
Apr 3, 2007 1.75 ingolf ball Weldon Spg St. Charles 13:30 local · NCEI

Size of every report

Most recent reports

Most recent hail reports in Weldon Spring
Date Size Location County Time · source
Apr 17, 2026 1.00 inquarter 2.63 SE Cottleville St. Charles 14:40 local · NCEI
May 16, 2025 2.00 inhen egg 1.38 S Cottleville St. Charles 13:24 local · NCEI
May 16, 2025 1.25 inhalf dollar 1.75 SE Cottleville St. Charles 13:24 local · NCEI
May 16, 2025 1.50 inping pong ball 1.62 E Weldon Spg St. Charles 13:20 local · NCEI
May 16, 2025 2.00 inhen egg 0.69 S Weldon Spg St. Charles 13:18 local · NCEI
May 16, 2025 2.00 inhen egg 0.54 W Weldon St. Charles 13:07 local · NCEI
Mar 27, 2021 1.75 ingolf ball 0.7 W Weldon St. Charles 16:05 local · NCEI
Apr 10, 2017 1.00 inquarter 0.68 W Weldon St. Charles 09:25 local · NCEI
May 26, 2016 0.75 inpenny 0.84 ESE Weldon Spg St. Charles 21:15 local · NCEI
Apr 26, 2016 0.88 innickel 0.7 W Weldon St. Charles 12:52 local · NCEI
May 11, 2014 0.75 inpenny 0.7 W Weldon St. Charles 00:52 local · NCEI
Jun 4, 2012 1.50 inping pong ball 1.49 S Cottleville St. Charles 15:19 local · NCEI

Hail history near Weldon Spring

Questions about hail in Weldon Spring

How often does it hail in Weldon Spring, Missouri?

30 hail reports have been logged in and within about 5 km (3 miles) of Weldon Spring since 1978. Over the 20 years 2006–2025 that averages 1.1 reports a year. That ranks #136 of 491 Missouri places by number of reports.

When is hail season in Weldon Spring?

Most reports come in May, April, March. May alone accounts for 43% of all reports.

What is the largest hail recorded in Weldon Spring?

2.00 in (hen egg size) on May 16, 2025 near 1.38 S Cottleville. 10% of reports here were 2 inches or larger.

When did it last hail in Weldon Spring?

The most recent report in this data is from April 17, 2026 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

How many hail storms has Weldon Spring had in the last five years?

2 separate days with hail reports since November 3, 2021, adding up to 6 reports. The most recent was April 17, 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.