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Johnston, Iowa, United States

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Weather Radar in Johnston, Iowa, United States

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FAQ

What are the average monthly temperatures in Johnston?

Average temperatures for Johnston:

Month	Min Temp	Max Temp
January	-9.9°C (14.1°F)	-1.2°C (29.9°F)
February	-8.5°C (16.7°F)	0.8°C (33.5°F)
March	-0.5°C (31.1°F)	9.9°C (49.8°F)
April	5.7°C (42.2°F)	17.1°C (62.8°F)
May	12.3°C (54.1°F)	23.3°C (73.9°F)
June	18.0°C (64.4°F)	28.0°C (82.4°F)
July	19.6°C (67.3°F)	29.5°C (85.1°F)
August	17.8°C (64.1°F)	28.1°C (82.6°F)
September	14.0°C (57.2°F)	25.3°C (77.6°F)
October	6.4°C (43.6°F)	17.2°C (63.0°F)
November	-0.1°C (31.8°F)	9.5°C (49.1°F)
December	-6.6°C (20.1°F)	1.3°C (34.4°F)

How much rain does Johnston get?

The average annual rainfall for Johnston is 888mm (35").

How much snow does Johnston get?

The average annual snowfall for Johnston is 90mm (4").