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Climate in Spearfish (South Dakota), United States of America

The graphs below show the monthly weather averages over the year.

Average day and night temperature

The mean minimum and maximum temperatures over the year.

Monthly precipitation

The mean monthly precipitation over the year, including rain, snow, hail etc.

Weather Forecasts for Spearfish (SD)

Tue   Apr 30
13°C | 3°C
NW 32 km/h
0.8 mm
partly cloudy and small chance of rain

partly cloudy and small chance of rain

Wed   May 01
13°C | 1°C
SW 18 km/h
3.5 mm
broken clouds and rain

broken clouds and rain

Thu   May 02
10°C | 2°C
NW 32 km/h
1.4 mm
broken clouds and rain

broken clouds and rain

The best time of year to visit Spearfish in the United States of America

During the months of June and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:

  • Which is the warmest month in Spearfish?
    July has an average maximum temperature of 30°C and is the warmest month of the year.
  • Which is the coldest month in Spearfish?
    The coldest month is December with an average maximum temperature of 3°C.
  • Which is the wettest month in Spearfish?
    May tops the wettest month list with 120 mm of rainfall.
  • Which is the driest month in Spearfish?
    January is the driest month with 21 mm of precipitation.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.