Hail History

Hail history for Waterloo, New York

NOAA hail reports in and within about 5 km (3 miles) of Waterloo since 1983, with preliminary reports to November 3, 2026.

Readout · Waterloo

Last hail
May 13, 2026
0.88 in, nickel size
Hail days, last 5 years
1
since Nov 3, 2021 · 1 report
Largest ever
1.50 in
ping pong ball · May 29, 2013

12 reports on 8 days since 1983 · #65 of 98 New York places

Hail map · Waterloo

Waterloo Auburn Penn Yan Moravia Trumansburg 10 mi
  • Under 1 in
  • 1–1.75 in
  • 1.75–2.5 in
  • 2.5–4 in
  • 4 in +
  • No size
12 most recent reports with a location; Seneca County is shaded. Open street map

For homeowners

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What the record says about Waterloo

The latest hail report in and around Waterloo is from May 13, 2026, 0.88 in (nickel size). Since November 3, 2021 there has been one hail day; the biggest stones in that time were 0.88 in on May 13, 2026.

Over the 20 years 2006–2025, Waterloo logged 10 reports on 6 hail days, about 0.5 reports a year. That is about the same as the median New York town on this site (0.5 a year) and ranks #65 of 98 New York cities and towns on this site for all-time reports. Waterloo accounts for 28% of the 43 reports filed in Seneca County.

0% of reports with a size were 2 inches (hen egg) or larger, against 0% for the median New York town on this site. The largest hail on record here is 1.50 in (ping pong ball) on May 29, 2013 near 0.51 E Waterloo.

Reports were down 100% in 2016–2025 (0) compared with 2006–2015 (10). The busiest year was 2013, with 6 reports on 2 days. Hail here peaks in May (67% of reports); 92% fall between April and June.

Reports a year 2006–2025 average

  • Waterloo 0.5
  • Seneca County 1.6
  • Median New York town on this site 0.5

Hail days 2006–2025

  • Waterloo 6
  • Seneca County 18
  • Median New York town on this site 7

Share 2 in or larger of sized reports

  • Waterloo 0%
  • Seneca County 0%
  • Median New York town on this site 0%

Hail over time

0246 1983: 1 reports, largest 0.75 in 1990 2000 2006: 1 reports, largest 0.75 in 2007: 1 reports, largest 1.00 in 2010 2012: 1 reports, largest 1.25 in 2013: 6 reports, largest 1.50 in 2014: 1 reports, largest 1.00 in 2020 2026: 1 reports, largest 0.88 in
Reports per year, 1983–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.
02468 Jan Feb Mar Apr May: 8 reports (67%) May June: 3 reports (25%) Jun July: 1 reports (8%) Jul Aug Sep Oct Nov Dec
All 12 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 0
2021 0
2020 0
2019 0
2018 0
2017 0

Hail days since Nov 3, 2021

DateReportsLargestStorm page
May 13, 2026 1 0.88 in —

Largest hail on record

Largest hail reports in Waterloo
Date Size Location County Time · source
May 29, 2013 1.50 inping pong ball 0.51 E Waterloo Seneca 15:45 local · NCEI
May 29, 2012 1.25 inhalf dollar 1.47 SSE Waterloo Seneca 12:31 local · NCEI
Jul 31, 2014 1.00 inquarter 0.51 E Waterloo Seneca 05:43 local · NCEI
May 29, 2013 1.00 inquarter 0.51 E Waterloo Seneca 15:44 local · NCEI
May 21, 2013 1.00 inquarter 0.51 E Waterloo Seneca 17:00 local · NCEI

Size of every report

Most recent reports

Most recent hail reports in Waterloo
Date Size Location County Time · source
May 13, 2026 0.88 innickel 0.39 SW Packwood Corners Seneca 14:58 local · NCEI
Jul 31, 2014 1.00 inquarter 0.51 E Waterloo Seneca 05:43 local · NCEI
May 29, 2013 1.50 inping pong ball 0.51 E Waterloo Seneca 15:45 local · NCEI
May 29, 2013 1.00 inquarter 0.51 E Waterloo Seneca 15:44 local · NCEI
May 21, 2013 1.00 inquarter 0.51 E Waterloo Seneca 17:00 local · NCEI
May 21, 2013 0.88 innickel 0.51 E Waterloo Seneca 16:48 local · NCEI
May 21, 2013 1.00 inquarter 0.51 E Waterloo Seneca 12:13 local · NCEI
May 21, 2013 0.88 innickel 0.51 E Waterloo Seneca 12:10 local · NCEI
May 29, 2012 1.25 inhalf dollar 1.47 SSE Waterloo Seneca 12:31 local · NCEI
Jun 21, 2007 1.00 inquarter 0.51 E Waterloo Seneca 14:15 local · NCEI
Jun 29, 2006 0.75 inpenny Waterloo Seneca 16:19 local · NCEI
Jun 16, 1983 0.75 inpenny — Cayuga 15:30 local · NCEI

Hail history near Waterloo

Questions about hail in Waterloo

How often does it hail in Waterloo, New York?

12 hail reports have been logged in and within about 5 km (3 miles) of Waterloo since 1983. Over the 20 years 2006–2025 that averages 0.5 reports a year. That ranks #65 of 98 New York places by number of reports.

When is hail season in Waterloo?

Most reports come in May, June, July. May alone accounts for 67% of all reports.

What is the largest hail recorded in Waterloo?

1.50 in (ping pong ball size) on May 29, 2013 near 0.51 E Waterloo. 0% of reports here were 2 inches or larger.

When did it last hail in Waterloo?

The most recent report in this data is from May 13, 2026 (0.88 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

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

1 separate days with hail reports since November 3, 2021, adding up to 1 reports. The most recent was May 13, 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.