What is the hottest month in Darby, MT?

July is the warmest month, with a normal high of 82°F at Darby.

What is the coldest month in Darby, MT?

January is the coldest month, with a normal low of 19°F.

What is the wettest month in Darby, MT?

June has the most precipitation on average, about 2.09 inches.

Checked Oct 25, 2026

Darby, MT Climate

1991 to 2020 normals at Darby, 0.3 mi from the center of Darby, elevation 3880 ft.

Average weather by month

Select a month for daily normals and last year's weather

Month	High	Low	Precip.	Snow
January	34°	19°	1.08 in	--
February	38°	21°	0.87 in	--
March	47°	27°	0.85 in	--
April	54°	31°	1.04 in	--
May	64°	39°	1.60 in	--
June	72°	45°	2.09 in	--
July	82°	50°	1.14 in	--
August	81°	48°	0.90 in	--
September	71°	42°	1.23 in	--
October	57°	33°	1.50 in	--
November	42°	25°	1.55 in	--
December	32°	19°	1.26 in	--
Year	56°		15.11 in	--

Frequently asked questions

What is the hottest month in Darby, MT?: July is the warmest month, with a normal high of 82°F at Darby.
What is the coldest month in Darby, MT?: January is the coldest month, with a normal low of 19°F.
What is the wettest month in Darby, MT?: June has the most precipitation on average, about 2.09 inches.

Today

Darby, MT forecast

Data sources

U.S. Climate Normals 1991-2020NOAA National Centers for Environmental Information · Official site
U.S. Climate Normals 1991-2020 (daily) and GHCN-Daily via Access Data ServiceNOAA National Centers for Environmental Information · Official site

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About this data

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Climate normals are 30-year averages measured at one weather station, which may be miles from the place named here or at a different elevation.

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