Custer, SD Climate


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United States / South Dakota / Rapid City Metro Area / Custer County / Custer / Zip Codes
Custer, SD has a semi-arid climate with cold winters and hot summers. The average temperature in the winter months is between 12°F and 32°F, while the summer months typically range from 40°F to 80°F. Precipitation levels are usually low, with an average of only 16 inches per year. Snowfall is also relatively low compared to other areas of the country, with an average of 37 inches per year. Overall, the climate in Custer tends to be dry and sunny all year round due to its location in the northern Great Plains region.

Custer, South Dakota gets 20 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Custer averages 55 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 226 sunny days per year in Custer. The US average is 205 sunny days.

Custer gets some kind of precipitation, on average, 93 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.

Weather Highlights

Summer High: the July high is around 80 degrees
Winter Low: the January low is 16
Rain: averages 20 inches of rain a year
Snow: averages 55 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Custer is 6.7 (10=best), which means it is less comfortable than most places in South Dakota.

9 Summer - 5.1 Winter
August, July and June are the most pleasant months in Custer, while February and December are the least comfortable months.

  ClimateCuster, South DakotaUnited States
  19.9 in.38.1 in.
  55.3 in.27.8 in.
  93.0 days106.2 days
  226 days205 days
  79.5°85.8°
  15.5°21.7°
  6.77
  4.74.3
  5315 ft.2443 ft.
Climate
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.

July is the hottest month for Custer with an average high temperature of 79.5°, which ranks it as one of the coolest places in South Dakota. In Custer, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Custer are August, July and June.
In Custer, there are 4.7 days annually when the high temperature is over 90°, which is one of the coolest places in South Dakota.
December has the coldest nighttime temperatures for Custer with an average of 15.2°. This is one of the warmest places in South Dakota.
In Custer, there are 177.0 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in South Dakota.
In Custer, there are 12.6 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in South Dakota.
Humidity is low in Custer, and some people might find the dryness to be uncomfortable. Days with noticeable humidity are rare throughout the year. A very dry climate can lead to cracked, itchy skin and dry eyes.
May is the wettest month in Custer with 3.6 inches of rain, and the driest month is January with 0.3 inches. The wettest season is Autumn with 40% of yearly precipitation and 7% occurs in Spring, which is the driest season. The annual rainfall of 19.9 inches in Custer means that it is drier than most places in South Dakota.
May is the rainiest month in Custer with 12.8 days of rain, and January is the driest month with only 3.9 rainy days. There are 93.0 rainy days annually in Custer, which is one of the rainiest places in South Dakota. The rainiest season is Autumn when it rains 36% of the time and the driest is Spring with only a 14% chance of a rainy day.
An annual snowfall of 55.3 inches in Custer means that it is one of the snowiest places in South Dakota. April is the snowiest month in Custer with 11.5 inches of snow, and 9 months of the year have significant snowfall.
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Liz · Custer, SD
Small town -- rural country living
Over 17 years ago

We retired and moved to the country so I could live my dream of breeding horses. Country living takes a period of adjustment, but I love country living, and it would be  More

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