Hail history for Darby, Montana

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

Readout · Darby

Last hail: Jul 14, 2014; 0.88 in, nickel size
Hail days, last 5 years: 0; since Nov 3, 2021 · 0 reports
Largest ever: 2.75 in; baseball · Jun 28, 1988

10 reports on 10 days since 1983 · #101 of 111 Montana places

Hail map · Darby

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; Ravalli 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 Darby is from July 14, 2014. A local roofer can check and document it at no cost.

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What the record says about Darby

The latest hail report in and around Darby is from July 14, 2014, 0.88 in (nickel size). There has been no hail report here in the five years since November 3, 2021.

Over the 20 years 2006–2025, Darby logged 3 reports on 3 hail days, about 0.1 reports a year. That is 33% of the median Montana town on this site (0.5 a year) and ranks #101 of 111 Montana cities and towns on this site for all-time reports. Darby accounts for 12% of the 85 reports filed in Ravalli County.

10% of reports with a size were 2 inches (hen egg) or larger, against 8% for the median Montana town on this site. The largest hail on record here is 2.75 in (baseball) on June 28, 1988.

The busiest year was 1988, with 3 reports on 3 days. Hail here peaks in June (40% of reports); 40% fall between April and June.

Reports a year 2006–2025 average

Darby 0.1
Ravalli County 2.3
Median Montana town on this site 0.5

Hail days 2006–2025

Darby 3
Ravalli County 29
Median Montana town on this site 7

Share 2 in or larger of sized reports

Darby 10%
Ravalli County 2%
Median Montana town on this site 8%

Hail over time

By yearBy monthLast 10 years

Reports per year, 1983–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.

All 10 reports by calendar month.

Reports per month, 2017–2026. Darker cells had more reports.
Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Total
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 Darby
Date	Size	Location	County	Time · source
Jun 28, 1988	2.75 inbaseball	—	Ravalli	14:30 local · NCEI
Jun 27, 1988	1.75 ingolf ball	—	Ravalli	13:35 local · NCEI
Aug 6, 2010	1.25 inhalf dollar	Darby	Ravalli	16:45 local · NCEI
Jul 3, 1988	1.00 inquarter	—	Ravalli	20:30 local · NCEI
Jul 31, 1983	1.00 inquarter	—	Ravalli	17:20 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

Under 1 in 5 50%
1–2 in 4 40%
2 in + 1 10%

Most recent reports

Most recent hail reports in Darby
Date	Size	Location	County	Time · source
Jul 14, 2014	0.88 innickel	Darby	Ravalli	18:45 local · NCEI
Aug 6, 2010	1.25 inhalf dollar	Darby	Ravalli	16:45 local · NCEI
Jun 4, 2006	0.75 inpenny	Darby	Ravalli	12:15 local · NCEI
Jun 9, 2004	0.75 inpenny	2 N Darby	Ravalli	15:42 local · NCEI
Aug 1, 1996	0.75 inpenny	Darby	Ravalli	19:35 local · NCEI
Jul 3, 1988	1.00 inquarter	—	Ravalli	20:30 local · NCEI
Jun 28, 1988	2.75 inbaseball	—	Ravalli	14:30 local · NCEI
Jun 27, 1988	1.75 ingolf ball	—	Ravalli	13:35 local · NCEI
Aug 3, 1983	0.75 inpenny	—	Ravalli	17:00 local · NCEI
Jul 31, 1983	1.00 inquarter	—	Ravalli	17:20 local · NCEI

Hail history near Darby

Hamilton 25 km · 10

Questions about hail in Darby

How often does it hail in Darby, Montana?

10 hail reports have been logged in and within about 5 km (3 miles) of Darby since 1983. Over the 20 years 2006–2025 that averages 0.1 reports a year. That ranks #101 of 111 Montana places by number of reports.

When is hail season in Darby?

Most reports come in June, July, August. June alone accounts for 40% of all reports.

What is the largest hail recorded in Darby?

2.75 in (baseball size) on June 28, 1988. 10% of reports here were 2 inches or larger.

When did it last hail in Darby?

The most recent report in this data is from July 14, 2014 (0.88 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

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

None: there has been no hail report in and within about 5 km (3 miles) of Darby since November 3, 2021. The last one was on July 14, 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.