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Sully County, South Dakota, United States

Onida, South Dakota, United States

Eakin, South Dakota, United States

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Onida Municipal Airport, United States

Warnes Slough, United States

Cottonwood Lake State Wildlife Refuge, United States

Weather Radar in Sully County, South Dakota, United States

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FAQ

What are the average monthly temperatures in Sully County?

Average temperatures for Sully County:

Month	Min Temp	Max Temp
January	-12.5°C (9.5°F)	-2.8°C (26.9°F)
February	-11.5°C (11.3°F)	-1.6°C (29.0°F)
March	-4.0°C (24.7°F)	7.1°C (44.8°F)
April	2.1°C (35.8°F)	14.3°C (57.8°F)
May	9.0°C (48.3°F)	21.0°C (69.9°F)
June	15.4°C (59.6°F)	27.2°C (80.9°F)
July	18.3°C (64.9°F)	30.6°C (87.0°F)
August	16.4°C (61.5°F)	28.8°C (83.9°F)
September	11.7°C (53.1°F)	24.9°C (76.8°F)
October	4.0°C (39.1°F)	14.9°C (58.9°F)
November	-3.5°C (25.8°F)	6.9°C (44.5°F)
December	-10.6°C (12.8°F)	-2.3°C (27.9°F)

How much rain does Sully County get?

The average annual rainfall for Sully County is 414mm (16").

How much snow does Sully County get?

The average annual snowfall for Sully County is 117mm (5").