What is the hottest month in Rockham, SD?

July is the warmest month, with a normal high of 84°F at Redfield.

What is the coldest month in Rockham, SD?

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

What is the wettest month in Rockham, SD?

June has the most precipitation on average, about 4.09 inches.

Checked Oct 25, 2026

Rockham, SD Climate

1991 to 2020 normals at Redfield, 15 mi from the center of Rockham, elevation 1309 ft.

Average weather by month

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

Month	High	Low	Precip.	Snow
January	23°	3°	0.49 in	--
February	28°	7°	0.56 in	--
March	41°	20°	0.87 in	--
April	56°	32°	2.08 in	--
May	69°	44°	3.34 in	--
June	79°	56°	4.09 in	--
July	84°	60°	3.27 in	--
August	82°	57°	2.68 in	--
September	74°	48°	2.00 in	--
October	59°	34°	2.04 in	--
November	42°	21°	0.68 in	--
December	28°	9°	0.66 in	--
Year	55°		22.76 in	--

Frequently asked questions

What is the hottest month in Rockham, SD?: July is the warmest month, with a normal high of 84°F at Redfield.
What is the coldest month in Rockham, SD?: January is the coldest month, with a normal low of 3°F.
What is the wettest month in Rockham, SD?: June has the most precipitation on average, about 4.09 inches.

Today

Rockham, SD 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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