Butte County Climate
Butte County, South Dakota
Avg Annual Temp
45.4°F
Annual Precip
17.6"
Annual Snowfall
41.7"
Extreme Heat Days
33.14
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Butte County Weather
A Cool Continental Climate in Butte County
Butte County maintains an average annual temperature of 45.4°F, falling well below the national median. This semi-arid region experiences dry conditions with only 17.6 inches of annual precipitation.
A Standard Profile for South Dakota
The county's 45.4°F average temperature almost perfectly mirrors the South Dakota state average of 45.6°F. While its temperature is typical, the county is notably drier than the state average of 22.7 inches of precipitation.
Drier and Warmer Than Northern Neighbors
Butte averages 45.4°F, which is slightly warmer than neighboring Corson County's 44.1°F. It remains significantly drier than eastern South Dakota counties, receiving about 5 inches less rain than the state norm.
Steamy Summers and Snowy Winters
Residents face 33 days of extreme heat above 90°F each year, concentrated in July when averages hit 72.5°F. Winter brings a different challenge with 41.7 inches of annual snowfall and January lows averaging 20.4°F.
Preparing for Arid Extremes
Homeowners should invest in high-efficiency cooling for the frequent 90-degree summer days. Reliable snow removal equipment is also essential to manage the 41.7 inches of snow that covers the landscape each year.
Frequently Asked Questions
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Data source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020.
Climate normals are 30-year averages of weather variables computed from 1991 to 2020. Station data is aggregated to county level using spatial averaging. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.