Hail History

Hail history for Helena, Oklahoma

NOAA hail reports in and within about 5 km (3 miles) of Helena since 1966, with preliminary reports to November 3, 2026.

Readout · Helena

Last hail
Apr 17, 2026
1.25 in, half dollar size
Hail days, last 5 years
2
since Nov 3, 2021 · 2 reports
Largest ever
2.75 in
baseball · Jun 16, 1980

25 reports on 24 days since 1966 · #254 of 584 Oklahoma places

Hail map · Helena

Helena Goltry Jet Aline Carmen Lambert 10 mi
  • Under 1 in
  • 1–1.75 in
  • 1.75–2.5 in
  • 2.5–4 in
  • 4 in +
  • No size
25 most recent reports with a location; Alfalfa County is shaded. Open street map

For homeowners

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What the record says about Helena

The latest hail report in and around Helena is from April 17, 2026, 1.25 in (half dollar size). Since November 3, 2021 there have been 2 separate hail days; the biggest stones in that time were 1.75 in on May 13, 2022.

Over the 20 years 2006–2025, Helena logged 7 reports on 7 hail days, about 0.3 reports a year. That is 22% less than the median Oklahoma town on this site (0.5 a year) and ranks #254 of 584 Oklahoma cities and towns on this site for all-time reports. Helena accounts for 7% of the 343 reports filed in Alfalfa County.

4% 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 16, 1980.

The busiest year was 2008, with 2 reports on 2 days. Hail here peaks in April (32% of reports); 68% fall between April and June.

Reports a year 2006–2025 average

  • Helena 0.3
  • Alfalfa County 4.0
  • Median Oklahoma town on this site 0.5

Hail days 2006–2025

  • Helena 7
  • Alfalfa County 43
  • Median Oklahoma town on this site 8

Share 2 in or larger of sized reports

  • Helena 4%
  • Alfalfa County 11%
  • Median Oklahoma town on this site 8%

Hail over time

012 1966: 1 reports, largest 0.75 in 1970 1978: 1 reports, largest 0.75 in 1980: 1 reports, largest 2.75 in 1980 1981: 1 reports, largest 1.75 in 1983: 1 reports, largest 0.75 in 1984: 1 reports, largest 0.88 in 1985: 2 reports, largest 1.75 in 1986: 1 reports, largest 0.88 in 1988: 1 reports, largest 1.00 in 1990 1992: 1 reports, largest 0.75 in 1998: 1 reports, largest 0.75 in 1999: 2 reports, largest 1.75 in 2000 2001: 1 reports, largest 1.00 in 2004: 1 reports, largest 0.88 in 2005: 1 reports, largest 0.88 in 2006: 1 reports, largest 0.75 in 2008: 2 reports, largest 1.00 in 2009: 1 reports, largest 0.75 in 2010 2011: 1 reports, largest 0.88 in 2015: 1 reports, largest 1.00 in 2020 2022: 1 reports, largest 1.75 in 2026: 1 reports, largest 1.25 in
Reports per year, 1966–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.
02468 Jan February: 1 reports (4%) Feb Mar April: 8 reports (32%) Apr May: 7 reports (28%) May June: 2 reports (8%) Jun Jul Aug September: 6 reports (24%) Sep October: 1 reports (4%) Oct Nov Dec
All 25 reports by calendar month.
Reports per month, 2017–2026. Darker cells had more reports.
YearJanFebMarAprMayJunJulAugSepOctNovDecTotal
2026 1 1
2025 0
2024 0
2023 0
2022 1 1
2021 0
2020 0
2019 0
2018 0
2017 0

Hail days since Nov 3, 2021

DateReportsLargestStorm page
Apr 17, 2026 1 1.25 in —
May 13, 2022 1 1.75 in —

Largest hail on record

Largest hail reports in Helena
Date Size Location County Time · source
Jun 16, 1980 2.75 inbaseball — Alfalfa 08:15 local · NCEI
May 13, 2022 1.75 ingolf ball 0.89 SE Helena Alfalfa 22:12 local · NCEI
May 3, 1999 1.75 ingolf ball 3 WSW Helena Alfalfa 18:30 local · NCEI
Sep 22, 1985 1.75 ingolf ball — Alfalfa 19:30 local · NCEI
Sep 22, 1985 1.75 ingolf ball — Alfalfa 17:00 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 Helena
Date Size Location County Time · source
Apr 17, 2026 1.25 inhalf dollar 0.86 SSE Helena Alfalfa 16:30 local · NCEI
May 13, 2022 1.75 ingolf ball 0.89 SE Helena Alfalfa 22:12 local · NCEI
May 6, 2015 1.00 inquarter 0.89 SW Helena Alfalfa 14:56 local · NCEI
Apr 8, 2011 0.88 innickel Helena Alfalfa 18:10 local · NCEI
Apr 26, 2009 0.75 inpenny 3 WSW Helena Alfalfa 15:10 local · NCEI
May 25, 2008 1.00 inquarter Helena Alfalfa 22:04 local · NCEI
Feb 5, 2008 0.88 innickel 1 SSE Helena Alfalfa 03:37 local · NCEI
May 30, 2006 0.75 inpenny Helena Alfalfa 15:35 local · NCEI
Oct 19, 2005 0.88 innickel Helena Alfalfa 14:25 local · NCEI
Apr 23, 2004 0.88 innickel Helena Alfalfa 14:30 local · NCEI
Sep 7, 2001 1.00 inquarter 4 WNW Goltry Alfalfa 14:41 local · NCEI
May 3, 1999 1.75 ingolf ball 3 WSW Helena Alfalfa 18:30 local · NCEI

Hail history near Helena

Questions about hail in Helena

How often does it hail in Helena, Oklahoma?

25 hail reports have been logged in and within about 5 km (3 miles) of Helena since 1966. Over the 20 years 2006–2025 that averages 0.3 reports a year. That ranks #254 of 584 Oklahoma places by number of reports.

When is hail season in Helena?

Most reports come in April, May, September. April alone accounts for 32% of all reports.

What is the largest hail recorded in Helena?

2.75 in (baseball size) on June 16, 1980. 4% of reports here were 2 inches or larger.

When did it last hail in Helena?

The most recent report in this data is from April 17, 2026 (1.25 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

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

2 separate days with hail reports since November 3, 2021, adding up to 2 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.