Hail history for Williamstown, Kansas
NOAA hail reports in and within about 5 km (3 miles) of Williamstown since 1972, with preliminary reports to November 3, 2026.
Readout · Williamstown
- Last hail
- May 26, 2016
- 2.75 in, baseball size
- Hail days, last 5 years
- 0
- since Nov 3, 2021 · 0 reports
- Largest ever
- 2.75 in
- baseball · May 26, 2016
16 reports on 14 days since 1972 · #505 of 612 Kansas places
Hail map · Williamstown
- Under 1 in
- 1–1.75 in
- 1.75–2.5 in
- 2.5–4 in
- 4 in +
- No size
For homeowners
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What the record says about Williamstown
The latest hail report in and around Williamstown is from May 26, 2016, 2.75 in (baseball size). There has been no hail report here in the five years since November 3, 2021.
Over the 20 years 2006–2025, Williamstown logged 7 reports on 6 hail days, about 0.3 reports a year. That is about half the median Kansas town on this site (0.7 a year) and ranks #505 of 612 Kansas cities and towns on this site for all-time reports. Williamstown accounts for 4% of the 381 reports filed in Jefferson County.
13% 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 2.75 in (baseball) on May 26, 2016 near 1.61 E Williamstown.
The busiest year was 2010, with 2 reports on 1 day. Hail here peaks in April (38% of reports); 63% fall between April and June.
Reports a year 2006–2025 average
- Williamstown 0.3
- Jefferson County 8.0
- Median Kansas town on this site 0.7
Hail days 2006–2025
- Williamstown 6
- Jefferson County 54
- Median Kansas town on this site 10
Share 2 in or larger of sized reports
- Williamstown 13%
- Jefferson County 8%
- Median Kansas town on this site 7%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 0 | ||||||||||||
| 2025 | 0 | ||||||||||||
| 2024 | 0 | ||||||||||||
| 2023 | 0 | ||||||||||||
| 2022 | 0 | ||||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 0 | ||||||||||||
| 2019 | 0 | ||||||||||||
| 2018 | 0 | ||||||||||||
| 2017 | 0 |
Largest hail on record
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| May 26, 2016 | 2.75 inbaseball | 1.61 E Williamstown | Jefferson | 07:27 local · NCEI |
| Apr 14, 2001 | 2.00 inhen egg | 1 E Williamstown | Jefferson | 17:40 local · NCEI |
| Sep 18, 2010 | 1.75 ingolf ball | 1.48 NNW Williamstown | Jefferson | 15:04 local · NCEI |
| Apr 25, 2009 | 1.75 ingolf ball | 0.69 S Williamstown | Jefferson | 17:12 local · NCEI |
| Mar 12, 2006 | 1.75 ingolf ball | Valley Falls | Jefferson | 10:10 local · NCEI |
Size of every report
- Under 1 in 7 44%
- 1–2 in 7 44%
- 2 in + 2 13%
Most recent reports
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| May 26, 2016 | 2.75 inbaseball | 1.61 E Williamstown | Jefferson | 07:27 local · NCEI |
| Sep 18, 2010 | 1.00 inquarter | 0.69 S Williamstown | Jefferson | 17:13 local · NCEI |
| Sep 18, 2010 | 1.75 ingolf ball | 1.48 NNW Williamstown | Jefferson | 15:04 local · NCEI |
| Apr 25, 2009 | 1.75 ingolf ball | 0.69 S Williamstown | Jefferson | 17:12 local · NCEI |
| Apr 3, 2007 | 0.88 innickel | 1.75 ENE Williamstown | Jefferson | 04:30 local · NCEI |
| Apr 23, 2006 | 1.25 inhalf dollar | 1 NW Williamstown | Jefferson | 20:41 local · NCEI |
| Mar 12, 2006 | 1.75 ingolf ball | Valley Falls | Jefferson | 10:10 local · NCEI |
| May 24, 2004 | 1.00 inquarter | Williamstown | Jefferson | 20:47 local · NCEI |
| Apr 11, 2002 | 0.88 innickel | Williamstown | Jefferson | 19:32 local · NCEI |
| Apr 14, 2001 | 0.75 inpenny | 5 E Perry | Jefferson | 19:05 local · NCEI |
| Apr 14, 2001 | 2.00 inhen egg | 1 E Williamstown | Jefferson | 17:40 local · NCEI |
| Sep 11, 2000 | 1.75 ingolf ball | 3 NE Williamstown | Jefferson | 17:17 local · NCEI |
Hail history near Williamstown
- Perry 5 km · 34
- Lecompton 6 km · 24
- Lawrence 13 km · 167
- Oskaloosa 17 km · 42
- McLouth 18 km · 40
- Grantville 20 km · 15
- Tonganoxie 22 km · 46
- Ozawkie 22 km · 30
Questions about hail in Williamstown
How often does it hail in Williamstown, Kansas?
16 hail reports have been logged in and within about 5 km (3 miles) of Williamstown since 1972. Over the 20 years 2006–2025 that averages 0.3 reports a year. That ranks #505 of 612 Kansas places by number of reports.
When is hail season in Williamstown?
Most reports come in April, May, September. April alone accounts for 38% of all reports.
What is the largest hail recorded in Williamstown?
2.75 in (baseball size) on May 26, 2016 near 1.61 E Williamstown. 13% of reports here were 2 inches or larger.
When did it last hail in Williamstown?
The most recent report in this data is from May 26, 2016 (2.75 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Williamstown had in the last five years?
None: there has been no hail report in and within about 5 km (3 miles) of Williamstown since November 3, 2021. The last one was on May 26, 2016.
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.