Dearborn, SD Climate


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Dearborn, SD has a continental climate, with hot summers and cold winters. Temperatures can range from -30°F in the winter to over 100°F in the summer. In general, summers are warm and fairly humid while winters are usually cold and dry. Average annual snowfall is around 25 inches, while precipitation ranges from 20-30 inches annually. Despite its location in the Northern Great Plains, Dearborn experiences four distinct seasons each year. The fall season brings cool temperatures and colorful foliage while spring is often windy with pleasant temperatures during the day and cooler evenings.

Dearborn, South Dakota gets 23 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Dearborn averages 37 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 211 sunny days per year in Dearborn. The US average is 205 sunny days.

Dearborn gets some kind of precipitation, on average, 76 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 86 degrees
Winter Low: the January low is 6
Rain: averages 23 inches of rain a year
Snow: averages 37 inches of snow a year


Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Dearborn is 6.9 (10=best), which means it is more comfortable than most places in South Dakota.

9.1 Summer - 4.4 Winter
August, June and September are the most pleasant months in Dearborn, while January and December are the least comfortable months.

  ClimateDearborn, South DakotaUnited States
  23.0 in.38.1 in.
  37.1 in.27.8 in.
  76.4 days106.2 days
  211 days205 days
  86.1°85.8°
  5.9°21.7°
  6.97
  3.64.3
  1319 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 Dearborn with an average high temperature of 86.1°, which ranks it as warmer than most places in South Dakota. In Dearborn, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Dearborn are June, September and August.
In Dearborn, there are 22.3 days annually when the high temperature is over 90°, which is about average compared to other places in South Dakota.
January has the coldest nighttime temperatures for Dearborn with an average of 5.9°. This is about average compared to other places in South Dakota.
In Dearborn, there are 165.8 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in South Dakota.
In Dearborn, there are 28.1 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in South Dakota.
The humidity is usually comfortable in Dearborn but some summer days can be muggy. July is the most humid month, though it is still relatively mild compared to many other places. The most humid months are July, August and June.
June is the wettest month in Dearborn with 3.7 inches of rain, and the driest month is January with 0.5 inches. The wettest season is Autumn with 39% of yearly precipitation and 7% occurs in Spring, which is the driest season. The annual rainfall of 23.0 inches in Dearborn means that it is about average compared to other places in South Dakota.
June is the rainiest month in Dearborn with 9.7 days of rain, and January is the driest month with only 4.2 rainy days. There are 76.4 rainy days annually in Dearborn, which is less rainy than most places in South Dakota. The rainiest season is Autumn when it rains 31% of the time and the driest is Spring with only a 17% chance of a rainy day.
An annual snowfall of 37.1 inches in Dearborn means that it is about average compared to other places in South Dakota. March is the snowiest month in Dearborn with 7.3 inches of snow, and 7 months of the year have significant snowfall.
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