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Keystone
Average rainfall
ClimateForecastNovemberDecember >>

Keystone (SD) Precipitation: Average Monthly Rainfall and Snowfall

This graph shows the average amount of rainfall per month in Keystone (South Dakota). The numbers are calculated over a 30-year period to provide a reliable average.

  • Most rainfall (rainy season) is seen in May.
  • Keystone has dry periods in January, February, November and December.
  • On average, May is the wettest month with 114 mm of precipitation.
  • On average, January is the driest month with 8 mm of precipitation.
  • The average amount of annual precipitation is 535 mm.

Current rainfall in Keystone (SD)

Thu   Nov 14
15°C | 0°C
W 18 km/h
clear and no rain

clear and no rain

hourly forecast
Fri   Nov 15
11°C | 0°C
SE 14 km/h
partly cloudy and no rain

partly cloudy and no rain

hourly forecast
Sat   Nov 16
7°C | -1°C
NW 22 km/h
partly cloudy and no rain

partly cloudy and no rain

hourly forecast
5-Day Forecast 10-Day Forecast

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