Hail history for Flagstaff, Arizona

NOAA hail reports in and within about 5 km (3 miles) of Flagstaff since 1973, with preliminary reports to November 3, 2026.

Readout · Flagstaff

Last hail: Oct 21, 2026; 1.75 in, golf ball size · preliminary
Hail days, last 5 years: 4; since Nov 3, 2021 · 15 reports
Largest ever: 2.00 in; hen egg · Aug 9, 2018

61 reports on 39 days since 1973 · #3 of 25 Arizona places

Hail map · Flagstaff

Under 1 in
1–1.75 in
1.75–2.5 in
2.5–4 in
4 in +
No size

61 most recent reports with a location; Coconino County is shaded. Open street map

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What the record says about Flagstaff

The latest hail report in and around Flagstaff is from October 21, 2026, 1.75 in (golf ball size). Since November 3, 2021 there have been 4 separate hail days; the biggest stones in that time were 1.75 in on October 21, 2026.

Over the 20 years 2006–2025, Flagstaff logged 19 reports on 14 hail days, about 0.9 reports a year. That is 2.7 times the median Arizona town on this site (0.3 a year) and ranks #3 of 25 Arizona cities and towns on this site for all-time reports. Flagstaff accounts for 31% of the 197 reports filed in Coconino County.

2% of reports with a size were 2 inches (hen egg) or larger, against 0% for the median Arizona town on this site. The largest hail on record here is 2.00 in (hen egg) on August 9, 2018 near 1.29 WSW Doney Park.

Reports were down 73% in 2016–2025 (4) compared with 2006–2015 (15). The busiest year was 2026, with 13 reports on 2 days. Hail here peaks in October (28% of reports); 3% fall between April and June.

Reports a year 2006–2025 average

Flagstaff 0.9
Coconino County 4.0
Median Arizona town on this site 0.3

Hail days 2006–2025

Flagstaff 14
Coconino County 65
Median Arizona town on this site 7

Share 2 in or larger of sized reports

Flagstaff 2%
Coconino County 4%
Median Arizona town on this site 0%

Hail over time

By yearBy monthLast 10 years

Reports per year, 1973–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.

All 61 reports by calendar month.

Reports per month, 2017–2026. Darker cells had more reports.
Year	Jul	Aug	Sep	Oct	Total
2026		1		12	13
2025			1		1
2024			1		1
2023					0
2022					0
2021					0
2020					0
2019					0
2018	1	1			2
2017					0

Hail days since Nov 3, 2021

Date	Reports	Largest	Storm page
Oct 21, 2026	12	1.75 in	View
Aug 11, 2026	1	0.70 in	View
Sep 25, 2025	1	1.00 in	—
Sep 21, 2024	1	1.00 in	—

Largest hail on record

Largest hail reports in Flagstaff
Date	Size	Location	County	Time · source
Aug 9, 2018	2.00 inhen egg	1.29 WSW Doney Park	Coconino	15:05 local · NCEI
Oct 21, 2026	1.75 ingolf ball	2 WSW Downtown Flagstaf	Coconino	17:43 UTC · NWS prelim.
Oct 21, 2026	1.75 ingolf ball	2 WSW Downtown Flagstaf	Coconino	16:43 UTC · NWS prelim.
Aug 23, 1998	1.75 ingolf ball	Flagstaff	Coconino	13:44 local · NCEI
Jul 26, 1996	1.75 ingolf ball	3 N Flagstaff	Coconino	12:40 local · NCEI

Size of every report

Under 1 in 17 28%
1–2 in 43 70%
2 in + 1 2%

Most recent reports

Most recent hail reports in Flagstaff
Date	Size	Location	County	Time · source
Oct 21, 2026	1.75 ingolf ball	2 WSW Downtown Flagstaf	Coconino	17:43 UTC · NWS prelim.
Oct 21, 2026	1.50 inping pong ball	2 N Flagstaff Airport	Coconino	17:34 UTC · NWS prelim.
Oct 21, 2026	1.00 inquarter	1 N Downtown Flagstaff	Coconino	17:08 UTC · NWS prelim.
Oct 21, 2026	1.75 ingolf ball	2 WSW Downtown Flagstaf	Coconino	16:43 UTC · NWS prelim.
Oct 21, 2026	1.50 inping pong ball	1 N Flagstaff Airport	Coconino	16:38 UTC · NWS prelim.
Oct 21, 2026	1.50 inping pong ball	2 N Flagstaff Airport	Coconino	16:34 UTC · NWS prelim.
Oct 21, 2026	1.25 inhalf dollar	2 NW Downtown Flagstaff	Coconino	16:31 UTC · NWS prelim.
Oct 21, 2026	1.25 inhalf dollar	1 NE Downtown Flagstaff	Coconino	16:28 UTC · NWS prelim.
Oct 21, 2026	1.00 inquarter	1 N Downtown Flagstaff	Coconino	16:28 UTC · NWS prelim.
Oct 21, 2026	1.00 inquarter	3 NNW Downtown Flagstaf	Coconino	16:24 UTC · NWS prelim.
Oct 21, 2026	1.25 inhalf dollar	1 N Flagstaff Airport	Coconino	16:20 UTC · NWS prelim.
Oct 21, 2026	1.50 inping pong ball	2 NW Downtown Flagstaff	Coconino	16:18 UTC · NWS prelim.

Hail history near Flagstaff

Parks 33 km · 14
Sedona 40 km · 10

Questions about hail in Flagstaff

How often does it hail in Flagstaff, Arizona?

61 hail reports have been logged in and within about 5 km (3 miles) of Flagstaff since 1973. Over the 20 years 2006–2025 that averages 0.9 reports a year. That ranks #3 of 25 Arizona places by number of reports.

When is hail season in Flagstaff?

Most reports come in October, July, August. October alone accounts for 28% of all reports.

What is the largest hail recorded in Flagstaff?

2.00 in (hen egg size) on August 9, 2018 near 1.29 WSW Doney Park. 2% of reports here were 2 inches or larger.

When did it last hail in Flagstaff?

The most recent report in this data is from October 21, 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 Flagstaff had in the last five years?

4 separate days with hail reports since November 3, 2021, adding up to 15 reports. The most recent was October 21, 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.