Dewey County, South Dakota 

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United States / South Dakota / No Metro Area / Dewey County / Cities / Zip Codes

Weather in Dewey County, South Dakota

The most pleasant months of the year for Dewey County are June, September and August. In Dewey County, there are 2 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for Dewey County with an average high temperature of 86.7°, which ranks it as warmer than most places in South Dakota. March is the snowiest month in Dewey County with 7.9 inches of snow, and 7 months of the year have significant snowfall. There are few days during the summer when the humidity becomes unpleasant.


Today's Weather - Dewey, SD

3 AM PST

Cloudy

61°F

7 DAY FORECASTDESCRIPTIONHIGH/LOWWIND
OvernightCloudy56° / 71°S 6 mph
Saturday NightMostly Clear48° / 62°WNW 12 to 23 mph
Sunday NightPartly Cloudy43° / 60°NW 13 to 18 mph
Monday NightPartly Cloudy45° / 71°WNW 6 to 13 mph
Tuesday NightMostly Clear46° / 59°NW 13 to 18 mph
Wednesday NightMostly Clear36° / 55°NNW 9 to 18 mph
Thursday NightMostly Clear36° / 62°ENE 6 to 9 mph

Weather Highlights

Summer High: the July high is around 87 degrees
Winter Low: the January low is 8
Rain: averages 18 inches of rain a year
Snow: averages 38 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for the Dewey County area is 6.8 (10=best), which means it is more comfortable than most places in South Dakota.

6.8 / 10

A higher score indicates a more comfortable year-round climate. The US average for the comfort index is 7. 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
January28°
February33° 12°
March43° 21°
April58° 33°
May69° 44°
June79° 54°
July87° 60°
August86° 58°
September75° 47°
October60° 35°
November42° 21°
December30° 10°
Hot, Freezing, Rainy, Snowy Days: Dewey
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January03144
February02744
March02763
April01472
May1290
June30100
July11080
August11060
September3160
October01151
November02643
December03144

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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MAPS OF DEWEY COUNTY, SOUTH DAKOTA
ZIP CODES IN DEWEY COUNTY, SOUTH DAKOTA
57625 57656 57633 57652 57636 57661 57630

NEW LISTINGS IN DEWEY
$50,000
210 N Polk Ave
Bed 2 | Bath 2

$450,000
24145 Highway 212
Bed 5 | Bath 3

$450,000
24145 US Highway 212
Bed N/A | Bath 0


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