Hail History

Hail history for Delaware, Oklahoma

NOAA hail reports in and within about 5 km (3 miles) of Delaware since 1957, with preliminary reports to November 3, 2026.

Readout · Delaware

Last hail
Jun 5, 2014
2.75 in, baseball size
Hail days, last 5 years
0
since Nov 3, 2021 · 0 reports
Largest ever
2.75 in
baseball · Jun 5, 2014

10 reports on 10 days since 1957 · #563 of 584 Oklahoma places

Hail map · Delaware

Delaware Lenapah Nowata Wann South Coffeyville Dewey Bartlesville Copan 10 mi
  • Under 1 in
  • 1–1.75 in
  • 1.75–2.5 in
  • 2.5–4 in
  • 4 in +
  • No size
10 most recent reports with a location; Nowata County is shaded. Open street map

For homeowners

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Hail bruises shingles and cracks seals in ways you can't see from the ground, and most insurers set a claim deadline after the storm. The latest hail report in Delaware is from June 5, 2014. A local roofer can check and document it at no cost.

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What the record says about Delaware

The latest hail report in and around Delaware is from June 5, 2014, 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, Delaware logged 3 reports on 3 hail days, about 0.1 reports a year. That is 33% of the median Oklahoma town on this site (0.5 a year) and ranks #563 of 584 Oklahoma cities and towns on this site for all-time reports. Delaware accounts for 6% of the 158 reports filed in Nowata County.

20% 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 2.75 in (baseball) on June 5, 2014 near 0.61 W Delaware.

The busiest year was 1996, with 2 reports on 2 days. Hail here peaks in May (30% of reports); 60% fall between April and June.

Reports a year 2006–2025 average

  • Delaware 0.1
  • Nowata County 2.6
  • Median Oklahoma town on this site 0.5

Hail days 2006–2025

  • Delaware 3
  • Nowata County 37
  • Median Oklahoma town on this site 8

Share 2 in or larger of sized reports

  • Delaware 20%
  • Nowata County 9%
  • Median Oklahoma town on this site 8%

Hail over time

012 1957: 1 reports, largest 2.25 in 1960 1970 1980 1990: 1 reports, largest 0.75 in 1990 1996: 2 reports, largest 0.75 in 1997: 1 reports, largest 0.88 in 2000: 1 reports, largest 0.88 in 2000 2005: 1 reports, largest 0.88 in 2006: 1 reports, largest 1.50 in 2009: 1 reports, largest 0.75 in 2010 2014: 1 reports, largest 2.75 in 2020
Reports per year, 1957–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.
0123 Jan Feb March: 2 reports (20%) Mar April: 1 reports (10%) Apr May: 3 reports (30%) May June: 2 reports (20%) Jun Jul Aug September: 1 reports (10%) Sep Oct November: 1 reports (10%) Nov Dec
All 10 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 Delaware
Date Size Location County Damage Time · source
Jun 5, 2014 2.75 inbaseball 0.61 W Delaware Nowata $20K 22:40 local · NCEI
Jun 12, 1957 2.25 inhen egg — Nowata — 01:30 local · NCEI
Apr 24, 2006 1.50 inping pong ball Delaware Nowata — 11:28 local · NCEI
Mar 24, 2005 0.88 innickel Collinsville Tulsa — 20:40 local · NCEI
May 16, 2000 0.88 innickel Delaware Nowata — 04:45 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 Delaware
Date Size Location County Damage Time · source
Jun 5, 2014 2.75 inbaseball 0.61 W Delaware Nowata $20K 22:40 local · NCEI
Sep 21, 2009 0.75 inpenny 3 NW Delaware Nowata — 12:45 local · NCEI
Apr 24, 2006 1.50 inping pong ball Delaware Nowata — 11:28 local · NCEI
Mar 24, 2005 0.88 innickel Collinsville Tulsa — 20:40 local · NCEI
May 16, 2000 0.88 innickel Delaware Nowata — 04:45 local · NCEI
May 26, 1997 0.88 innickel 1 E Delaware Nowata — 19:20 local · NCEI
Nov 16, 1996 0.75 inpenny 5 S Lenapah Nowata — 17:10 local · NCEI
Mar 14, 1996 0.75 inpenny Delaware Nowata — 15:45 local · NCEI
May 14, 1990 0.75 inpenny — Nowata — 20:25 local · NCEI
Jun 12, 1957 2.25 inhen egg — Nowata — 01:30 local · NCEI

Hail history near Delaware

Questions about hail in Delaware

How often does it hail in Delaware, Oklahoma?

10 hail reports have been logged in and within about 5 km (3 miles) of Delaware since 1957. Over the 20 years 2006–2025 that averages 0.1 reports a year. That ranks #563 of 584 Oklahoma places by number of reports.

When is hail season in Delaware?

Most reports come in May, March, June. May alone accounts for 30% of all reports.

What is the largest hail recorded in Delaware?

2.75 in (baseball size) on June 5, 2014 near 0.61 W Delaware. 20% of reports here were 2 inches or larger.

When did it last hail in Delaware?

The most recent report in this data is from June 5, 2014 (2.75 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

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

None: there has been no hail report in and within about 5 km (3 miles) of Delaware since November 3, 2021. The last one was on June 5, 2014.

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.