What is the hottest month in Perth, ND?

August is the warmest month, with a normal high of 75°F at Rolla 1ne.

What is the coldest month in Perth, ND?

January is the coldest month, with a normal low of -3°F.

What is the wettest month in Perth, ND?

June has the most precipitation on average, about 3.73 inches.

Checked Oct 25, 2026

Perth, ND Climate

1991 to 2020 normals at Rolla 1ne, 13 mi from the center of Perth, elevation 1833 ft.

Average weather by month

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

Month	High	Low	Precip.	Snow
January	15°	-3°	0.37 in	--
February	19°	0°	0.43 in	--
March	30°	12°	0.70 in	--
April	48°	25°	1.09 in	--
May	62°	38°	2.86 in	--
June	70°	49°	3.73 in	--
July	75°	54°	3.33 in	--
August	75°	52°	2.72 in	--
September	65°	43°	1.74 in	--
October	50°	29°	1.21 in	--
November	33°	16°	0.79 in	--
December	20°	3°	0.67 in	--
Year	47°		19.64 in	--

Frequently asked questions

What is the hottest month in Perth, ND?: August is the warmest month, with a normal high of 75°F at Rolla 1ne.
What is the coldest month in Perth, ND?: January is the coldest month, with a normal low of -3°F.
What is the wettest month in Perth, ND?: June has the most precipitation on average, about 3.73 inches.

Today

Perth, ND forecast

Data sources

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

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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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