What is the hottest month in Vermillion, SD?

July is the warmest month, with a normal high of 86°F at Vermillion 2 SE.

What is the coldest month in Vermillion, SD?

January is the coldest month, with a normal low of 10°F.

What is the wettest month in Vermillion, SD?

June has the most precipitation on average, about 4.30 inches.

Checked Oct 25, 2026

Vermillion, SD Climate

1991 to 2020 normals at Vermillion 2 SE, 1.7 mi from the center of Vermillion, elevation 1137 ft.

Average weather by month

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

Month	High	Low	Precip.	Snow
January	31°	10°	0.53 in	--
February	36°	14°	0.70 in	--
March	48°	25°	1.42 in	--
April	62°	36°	3.09 in	--
May	73°	48°	3.96 in	--
June	82°	59°	4.30 in	--
July	86°	63°	3.61 in	--
August	83°	61°	2.88 in	--
September	78°	52°	3.07 in	--
October	65°	39°	2.35 in	--
November	48°	25°	1.30 in	--
December	34°	15°	0.79 in	--
Year	60°		28.00 in	--

Frequently asked questions

What is the hottest month in Vermillion, SD?: July is the warmest month, with a normal high of 86°F at Vermillion 2 SE.
What is the coldest month in Vermillion, SD?: January is the coldest month, with a normal low of 10°F.
What is the wettest month in Vermillion, SD?: June has the most precipitation on average, about 4.30 inches.

Today

Vermillion, SD 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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