Green Grass, SD Climate


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United States / South Dakota / No Metro Area / Dewey County / Green Grass / Zip Codes
Green Grass, SD has a mild climate with warm summers, cool winters and moderate precipitation throughout the year. The average temperature in the summer months is typically in the mid-70s Fahrenheit while the winter months tend to be around freezing temperatures. There is an average of 25 inches of precipitation annually which consists mostly of snowfall during the winter and rainfall during the spring and fall. Green Grass also has plenty of sunshine throughout all four seasons ensuring that outdoor activities can be enjoyed for much of the year.

Bestplaces Comfort Index

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

9 Summer - 4.7 Winter
June, September and August are the most pleasant months in Green Grass, while January and December are the least comfortable months.

  ClimateGreen Grass, South DakotaUnited States
  18.6 in.38.1 in.
  38.1 in.27.8 in.
  65.7 days106.2 days
  201 days205 days
  87.6°85.8°
  9.3°21.7°
  6.97
  34.3
  1860 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 Green Grass with an average high temperature of 87.6°, which ranks it as warmer than most places in South Dakota. In Green Grass, there are 2 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Green Grass are June, September and May.
In Green Grass, there are 34.2 days annually when the high temperature is over 90°, which is one of the hottest places in South Dakota.
January has the coldest nighttime temperatures for Green Grass with an average of 9.3°. This is warmer than most places in South Dakota.
In Green Grass, there are 165.4 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in South Dakota.
In Green Grass, there are 22.3 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in South Dakota.
Humidity in Green Grass is generally quite low and comfortable. There are few days during the summer when the humidity becomes unpleasant. The most humid months (but still comfortable) are July, August and June.
June is the wettest month in Green Grass with 3.5 inches of rain, and the driest month is January with 0.3 inches. The wettest season is Autumn with 42% of yearly precipitation and 7% occurs in Spring, which is the driest season. The annual rainfall of 18.6 inches in Green Grass means that it is drier than most places in South Dakota.
June is the rainiest month in Green Grass with 9.1 days of rain, and January is the driest month with only 3.2 rainy days. There are 65.7 rainy days annually in Green Grass, which is one of the least rainy places in South Dakota. The rainiest season is Autumn when it rains 33% of the time and the driest is Spring with only a 16% chance of a rainy day.
An annual snowfall of 38.1 inches in Green Grass means that it is about average compared to other places in South Dakota. March is the snowiest month in Green Grass with 8.1 inches of snow, and 7 months of the year have significant snowfall.
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