Alton, South Dakota 

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Climate in Alton, South Dakota

Alton, South Dakota gets 26 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Alton averages 39 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 208 sunny days per year in Alton. The US average is 205 sunny days.

Alton gets some kind of precipitation, on average, 90 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 82 degrees
Winter Low: the January low is 4
Rain: averages 26 inches of rain a year
Snow: averages 39 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for Alton is 6.6 (10=best), which means it is less comfortable than most places in South Dakota.

6.6 / 10
August, July and June are the most pleasant months in Alton, while January and December are the least comfortable months.

Climate Averages
  Alton, South DakotaUnited States
  26.3 in.38.1 in.
  38.5 in.27.8 in.
  90.2 days106.2 days
  208 days205 days
  81.7°85.8°
  3.5°21.7°
  6.67
  3.64.3
  1718 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 Alton with an average high temperature of 81.7°, which ranks it as one of the coolest places in South Dakota. In Alton, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Alton are June, August and July.


January has the coldest nighttime temperatures for Alton with an average of 3.5°. This is colder than most places in South Dakota.


In Alton, there are 7.4 days annually when the high temperature is over 90°, which is one of the coolest places in South Dakota.


In Alton, there are 170.6 days annually when the nighttime low temperature falls below freezing, which is colder than most places in South Dakota.


In Alton, there are 33.5 days annually when the nighttime low temperature falls below zero°, which is colder than most places in South Dakota.


June is the wettest month in Alton with 4.4 inches of rain, and the driest month is January with 0.5 inches. The wettest season is Autumn with 42% of yearly precipitation and 6% occurs in Spring, which is the driest season. The annual rainfall of 26.3 inches in Alton means that it is wetter than most places in South Dakota.


June is the rainiest month in Alton with 11.5 days of rain, and February is the driest month with only 4.7 rainy days. There are 90.2 rainy days annually in Alton, which is one of the rainiest places in South Dakota. The rainiest season is Autumn when it rains 32% of the time and the driest is Spring with only a 16% chance of a rainy day.


An annual snowfall of 38.5 inches in Alton means that it is snowier than most places in South Dakota. December is the snowiest month in Alton with 7.4 inches of snow, and 7 months of the year have significant snowfall.





CLIMATE MAP
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