Plano, SD Climate


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Plano, SD has a humid continental climate, with long summers and cold winters. During the summer months, temperatures average in the mid-70s to low 80s Fahrenheit, while during the winter months temperatures generally stay between 10 to 25 degrees Fahrenheit. The city gets an average of 30 inches of precipitation each year, and experiences mild humidity year-round. Snowfall is common throughout the winter months, with average accumulations reaching up to 16 inches annually.

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Plano is 7.0 (10=best), which means it is one of the most pleasant places in South Dakota.

9.1 Summer - 4.6 Winter
June, August and September are the most pleasant months in Plano, while January and December are the least comfortable months.

  ClimatePlano, South DakotaUnited States
  24.1 in.38.1 in.
  34.1 in.27.8 in.
  78.3 days106.2 days
  210 days205 days
  86.7°85.8°
  9.2°21.7°
  77
  3.54.3
  1299 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 Plano with an average high temperature of 86.7°, which ranks it as warmer than most places in South Dakota. In Plano, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Plano are September, June and May.
In Plano, there are 22.8 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 Plano with an average of 9.2°. This is warmer than most places in South Dakota.
In Plano, there are 155.0 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in South Dakota.
In Plano, there are 20.2 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in South Dakota.
The humidity is usually comfortable in Plano 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 Plano with 4.3 inches of rain, and the driest month is January with 0.4 inches. The wettest season is Autumn with 41% of yearly precipitation and 6% occurs in Spring, which is the driest season. The annual rainfall of 24.1 inches in Plano means that it is about average compared to other places in South Dakota.
May is the rainiest month in Plano with 9.8 days of rain, and December is the driest month with only 3.8 rainy days. There are 78.3 rainy days annually in Plano, 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 15% chance of a rainy day.
An annual snowfall of 34.1 inches in Plano means that it is less snowy than most places in South Dakota. December is the snowiest month in Plano with 6.7 inches of snow, and 7 months of the year have significant snowfall.
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