Hail History

Hail history for Jefferson, Oklahoma

NOAA hail reports in and within about 5 km (3 miles) of Jefferson since 1958, with preliminary reports to November 3, 2026.

Readout · Jefferson

Last hail
Mar 23, 2019
1.25 in, half dollar size
Hail days, last 5 years
0
since Nov 3, 2021 · 0 reports
Largest ever
3.00 in
teacup · Jul 12, 1958

22 reports on 17 days since 1958 · #307 of 584 Oklahoma places

Hail map · Jefferson

Jefferson Pond Creek Medford Lamont Wakita Nash 10 mi
  • Under 1 in
  • 1–1.75 in
  • 1.75–2.5 in
  • 2.5–4 in
  • 4 in +
  • No size
22 most recent reports with a location; Grant County is shaded. Open street map

For homeowners

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What the record says about Jefferson

The latest hail report in and around Jefferson is from March 23, 2019, 1.25 in (half dollar size). There has been no hail report here in the five years since November 3, 2021.

Over the 20 years 2006–2025, Jefferson logged 5 reports on 4 hail days, about 0.3 reports a year. That is 44% less than the median Oklahoma town on this site (0.5 a year) and ranks #307 of 584 Oklahoma cities and towns on this site for all-time reports. Jefferson accounts for 6% of the 381 reports filed in Grant County.

18% of reports with a size were 2 inches (hen egg) or larger, against 8% for the median Oklahoma town on this site. The largest hail on record here is 3.00 in (teacup) on July 12, 1958.

The busiest year was 1958, with 5 reports on 2 days. Hail here peaks in April (36% of reports); 50% fall between April and June.

Reports a year 2006–2025 average

  • Jefferson 0.3
  • Grant County 4.0
  • Median Oklahoma town on this site 0.5

Hail days 2006–2025

  • Jefferson 4
  • Grant County 49
  • Median Oklahoma town on this site 8

Share 2 in or larger of sized reports

  • Jefferson 18%
  • Grant County 10%
  • Median Oklahoma town on this site 8%

Hail over time

0246 1958: 5 reports, largest 3.00 in 1960 1969: 1 reports, largest 1.50 in 1970 1980 1985: 1 reports, largest 1.75 in 1987: 1 reports, largest 1.25 in 1990 1991: 3 reports, largest 2.50 in 1998: 1 reports, largest 0.88 in 1999: 1 reports, largest 0.75 in 2000 2001: 1 reports, largest 1.00 in 2004: 2 reports, largest 0.88 in 2005: 1 reports, largest 1.00 in 2009: 3 reports, largest 1.75 in 2010 2011: 1 reports, largest 1.00 in 2019: 1 reports, largest 1.25 in 2020
Reports per year, 1958–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.
02468 Jan February: 1 reports (5%) Feb March: 1 reports (5%) Mar April: 8 reports (36%) Apr May: 1 reports (5%) May June: 2 reports (9%) Jun July: 5 reports (23%) Jul August: 3 reports (14%) Aug September: 1 reports (5%) Sep Oct Nov Dec
All 22 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 1 1
2018 0
2017 0

Largest hail on record

Largest hail reports in Jefferson
Date Size Location County Time · source
Jul 12, 1958 3.00 inteacup — Grant 14:30 local · NCEI
Jul 12, 1958 3.00 inteacup — Grant 14:30 local · NCEI
Apr 12, 1991 2.50 intennis ball — Grant 16:27 local · NCEI
Apr 12, 1991 2.00 inhen egg — Grant 16:50 local · NCEI
Apr 25, 2009 1.75 ingolf ball Jefferson Grant 17:55 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 Jefferson
Date Size Location County Time · source
Mar 23, 2019 1.25 inhalf dollar Jefferson Grant 19:40 local · NCEI
Feb 27, 2011 1.00 inquarter Jefferson Grant 16:55 local · NCEI
Aug 16, 2009 0.75 inpenny Jefferson Grant 19:07 local · NCEI
Apr 25, 2009 1.75 ingolf ball Jefferson Grant 17:55 local · NCEI
Apr 25, 2009 0.75 inpenny Jefferson Grant 17:30 local · NCEI
Jun 6, 2005 1.00 inquarter Jefferson Grant 01:40 local · NCEI
Aug 10, 2004 0.75 inpenny 1 W Jefferson Grant 20:50 local · NCEI
Apr 23, 2004 0.88 innickel Jefferson Grant 16:15 local · NCEI
Sep 7, 2001 1.00 inquarter Jefferson Grant 15:30 local · NCEI
Apr 13, 1999 0.75 inpenny Jefferson Grant 16:15 local · NCEI
May 24, 1998 0.88 innickel Jefferson Grant 21:45 local · NCEI
Apr 26, 1991 0.75 inpenny — Grant 16:25 local · NCEI

Hail history near Jefferson

Questions about hail in Jefferson

How often does it hail in Jefferson, Oklahoma?

22 hail reports have been logged in and within about 5 km (3 miles) of Jefferson since 1958. Over the 20 years 2006–2025 that averages 0.3 reports a year. That ranks #307 of 584 Oklahoma places by number of reports.

When is hail season in Jefferson?

Most reports come in April, July, August. April alone accounts for 36% of all reports.

What is the largest hail recorded in Jefferson?

3.00 in (teacup size) on July 12, 1958. 18% of reports here were 2 inches or larger.

When did it last hail in Jefferson?

The most recent report in this data is from March 23, 2019 (1.25 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

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

None: there has been no hail report in and within about 5 km (3 miles) of Jefferson since November 3, 2021. The last one was on March 23, 2019.

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.