Hail History

Hail history for Weston County, Wyoming

Every NOAA hail report filed in Weston County since 1956, with preliminary National Weather Service reports to November 3, 2026.

Readout · Weston County

Last hail
Aug 12, 2026
1.75 in, golf ball size · preliminary
Hail days, last 5 years
18
since Nov 3, 2021 · 42 reports
Largest ever
3.50 in
teacup · Jun 16, 1977

309 reports on 169 days since 1956 · #6 of 22 Wyoming counties

Hail map · Weston County

Newcastle Upton Osage 20 mi
  • Under 1 in
  • 1–1.75 in
  • 1.75–2.5 in
  • 2.5–4 in
  • 4 in +
  • No size
300 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 Weston County

The latest hail report in Weston County is from August 12, 2026, 1.75 in (golf ball size). Since November 3, 2021 there have been 18 separate hail days; the biggest stones in that time were 2.75 in on July 30, 2023.

Over the 20 years 2006–2025, Weston County logged 213 reports on 113 hail days, about 10.7 reports a year. That is about twice the median Wyoming county (4.5 a year) and ranks #6 of 22 Wyoming counties for all-time reports. Weston County holds 6% of all 4,952 hail reports in Wyoming.

8% of reports with a size were 2 inches (hen egg) or larger, against 5% for the median Wyoming county. The largest hail on record here is 3.50 in (teacup) on June 16, 1977.

Reports held about level in 2016–2025 (98) compared with 2006–2015 (115). The busiest year was 2013, with 24 reports on 14 days. Hail here peaks in July (41% of reports); 44% fall between April and June.

Reports a year 2006–2025 average

  • Weston County 10.7
  • Median Wyoming county 4.5

Hail days 2006–2025

  • Weston County 113
  • Median Wyoming county 55.5

Share 2 in or larger of sized reports

  • Weston County 8%
  • Median Wyoming county 5%

Hail over time

0102030 1956: 1 reports, largest 1.75 in 1960 1970 1971: 1 reports, largest 2.50 in 1973: 1 reports, largest 0.75 in 1974: 1 reports, largest 0.75 in 1975: 1 reports, largest 0.75 in 1977: 2 reports, largest 3.50 in 1979: 2 reports, largest 1.75 in 1980: 1 reports, largest 1.00 in 1980 1982: 1 reports, largest 2.75 in 1983: 2 reports, largest 2.75 in 1986: 4 reports, largest 2.00 in 1990 1992: 2 reports, largest 0.75 in 1994: 1 reports, largest 0.75 in 1995: 5 reports, largest 2.00 in 1996: 4 reports, largest 2.00 in 1997: 2 reports, largest 0.75 in 1998: 1 reports, largest 1.00 in 1999: 9 reports, largest 1.75 in 2000: 8 reports, largest 1.75 in 2000 2001: 20 reports, largest 1.75 in 2002: 9 reports, largest 1.75 in 2004: 3 reports, largest 1.00 in 2005: 7 reports, largest 1.00 in 2006: 5 reports, largest 1.75 in 2007: 6 reports, largest 1.75 in 2008: 11 reports, largest 1.75 in 2009: 14 reports, largest 2.00 in 2010: 13 reports, largest 2.00 in 2010 2011: 14 reports, largest 3.00 in 2012: 4 reports, largest 1.50 in 2013: 24 reports, largest 2.00 in 2014: 12 reports, largest 2.75 in 2015: 12 reports, largest 2.50 in 2016: 9 reports, largest 2.50 in 2017: 7 reports, largest 1.00 in 2018: 3 reports, largest 1.75 in 2019: 21 reports, largest 1.75 in 2020: 12 reports, largest 1.75 in 2020 2021: 12 reports, largest 2.75 in 2022: 12 reports, largest 1.50 in 2023: 21 reports, largest 2.75 in 2024: 1 reports, largest 1.00 in 2026: 8 reports, largest 2.00 in
Reports per year, 1956–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.
050100150 Jan Feb Mar April: 1 reports (0%) Apr May: 41 reports (13%) May June: 93 reports (30%) Jun July: 126 reports (41%) Jul August: 48 reports (16%) Aug Sep Oct Nov Dec
All 309 reports by calendar month.
Reports per month, 2017–2026. Darker cells had more reports.
YearJanFebMarAprMayJunJulAugSepOctNovDecTotal
2026 323 8
2025 0
2024 1 1
2023 6213 21
2022 39 12
2021 1236 12
2020 5232 12
2019 759 21
2018 12 3
2017 412 7

Hail days since Nov 3, 2021

DateReportsLargestStorm page
Aug 12, 2026 3 1.75 in View
Jul 3, 2026 2 2.00 in —
Jun 22, 2026 3 1.00 in —
Jul 1, 2024 1 1.00 in —
Jul 30, 2023 3 2.75 in —
Jul 17, 2023 5 1.25 in —
Jul 11, 2023 2 2.50 in —
Jul 8, 2023 1 1.75 in —
Jul 3, 2023 2 1.00 in —
Jun 28, 2023 1 1.00 in —
Jun 23, 2023 1 1.75 in —
May 27, 2023 6 1.75 in —
Jul 8, 2022 2 1.50 in —
Jul 4, 2022 6 1.50 in —
Jul 1, 2022 1 0.88 in —
Jun 13, 2022 1 0.88 in —
Jun 11, 2022 1 1.00 in —
Jun 6, 2022 1 0.75 in —

Largest hail on record

Largest hail reports in Weston County
Date Size Location Damage Time · source
Jun 16, 1977 3.50 inteacup — — 15:20 local · NCEI
Jul 5, 2011 3.00 inteacup 5.57 NW Rochelle — 17:38 local · NCEI
Jul 30, 2023 2.75 inbaseball 7.34 SSW Four Corners — 18:34 local · NCEI
Jul 9, 2021 2.75 inbaseball 4.9 S Newcastle Arpt — 18:25 local · NCEI
Jul 22, 2014 2.75 inbaseball 7.63 NNE Osage $5K 17:20 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 Weston County
Date Size Location Time · source
Aug 12, 2026 1.75 ingolf ball 11 NE Morrisey 20:30 UTC · NWS prelim.
Aug 12, 2026 0.88 innickel 12 ENE Clareton 20:07 UTC · NWS prelim.
Aug 12, 2026 1.00 inquarter 8 ENE Clareton 20:01 UTC · NWS prelim.
Jul 3, 2026 2.00 inhen egg 6.7 NNE Osage 14:22 local · NCEI
Jul 3, 2026 1.00 inquarter 6.7 NNE Osage 13:47 local · NCEI
Jun 22, 2026 1.00 inquarter Newcastle 19:30 local · NCEI
Jun 22, 2026 1.00 inquarter 0.5 E Upton 18:55 local · NCEI
Jun 22, 2026 1.00 inquarter 12.42 W Upton 18:41 local · NCEI
Jul 1, 2024 1.00 inquarter 10.28 NNE Osage 13:46 local · NCEI
Jul 30, 2023 1.75 ingolf ball 4.08 NNE Newcastle Arpt 19:05 local · NCEI
Jul 30, 2023 2.75 inbaseball 7.34 SSW Four Corners 18:34 local · NCEI
Jul 30, 2023 1.75 ingolf ball 2 NE Upton 18:17 local · NCEI

Cities and towns in Weston County

PlaceReportsLargest
Newcastle482.75 in
Upton222.00 in
Osage193.50 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
Hill View Heights33Jun 21, 2007

Questions about hail in Weston County

How often does it hail in Weston County, Wyoming?

309 hail reports have been logged in Weston County since 1956. Over the 20 years 2006–2025 that averages 10.7 reports a year. That ranks #6 of 22 Wyoming counties by number of reports.

When is hail season in Weston County?

Most reports come in July, June, August. July alone accounts for 41% of all reports.

What is the largest hail recorded in Weston County?

3.50 in (teacup size) on June 16, 1977. 8% of reports here were 2 inches or larger.

When did it last hail in Weston County?

The most recent report in this data is from August 12, 2026 (1.75 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

How many hail storms has Weston County had in the last five years?

18 separate days with hail reports since November 3, 2021, adding up to 42 reports. The most recent was August 12, 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.