River Sioux, IA Weather


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The most pleasant months of the year for River Sioux are September, June and May. In River Sioux, there are 4 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for River Sioux with an average high temperature of 86.0°, which ranks it as one of the hottest places in Iowa. December is the snowiest month in River Sioux with 6.9 inches of snow, and 6 months of the year have significant snowfall. July is the most humid month, though humidity is low for most of the year.

Today's Weather - River Sioux, IA

1 AM PST

Showers And Thunderstorms

24°F

7 DAY FORECASTDESCRIPTIONHIGH/LOWWIND
OvernightShowers And Thunderstorms-57° / 76°SE 23 mph
Tuesday NightChance Showers And Thunderstorms48° / 66°WSW 10 to 22 mph
Wednesday NightRain Showers42° / 54°N 7 to 14 mph
Thursday NightPartly Cloudy33° / 55°NW 9 to 16 mph
Friday NightMostly Cloudy33° / 52°NW 9 to 14 mph
Saturday NightPartly Cloudy30° / 59°NW 7 to 15 mph
Sunday NightPartly Cloudy38° / 66°SSW 12 mph

Weather Highlights

Summer High: the July high is around 86 degrees
Winter Low: the January low is 11
Rain: averages 32 inches of rain a year
Snow: averages 28 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for the River Sioux area is 8.7 (10=best), which means it is more comfortable than most places in Iowa.

8.7 / 10

A higher score indicates a more comfortable year-round climate. The US average for the comfort index is 7.8. Our index is based on the total number of days annually within the comfort range of 70-80 degrees, and we also applied a penalty for days of excessive humidity.


Average Monthly High and Low (°F)
HighLow
January31° 11°
February35° 15°
March48° 26°
April62° 37°
May73° 49°
June82° 59°
July86° 64°
August84° 61°
September77° 51°
October64° 39°
November47° 26°
December33° 14°
Hot, Freezing, Rainy, Snowy Days: River Sioux
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January03043
February02653
March02372
April0991
May10110
June40100
July8090
August5080
September2080
October0970
November02352
December03053

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

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