Spearfish (SD) Precipitation: Average Monthly Rainfall and Snowfall
This graph shows the average amount of rainfall per month in Spearfish (South Dakota). The numbers are calculated over a 30-year period to provide a reliable average.
- Most rainfall (rainy season) is seen in May and June.
- Spearfish has dry periods in January and November.
- On average, May is the wettest month with 120 mm of precipitation.
- On average, January is the driest month with 21 mm of precipitation.
- The average amount of annual precipitation is 653 mm.
Current rainfall in Spearfish (SD)
clear and no rain
broken clouds and no rain
overcast and chance of slight sleet