Grenville, SD Climate


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United States / South Dakota / No Metro Area / Day County / Grenville / Zip Codes
Grenville town, SD has a humid continental climate, with four distinct seasons. Summers are hot and humid, with temperatures reaching up to 90°F (32°C), while winters are cold and snowy, with temperatures dropping below freezing. Spring and autumn are short transitional seasons, often mild and wet. Precipitation is spread evenly throughout the year with about 25-30 inches (640-760 mm) of rain annually. The region receives an average of 66 inches (1,680 mm) of snowfall each winter.

Grenville, South Dakota gets 24 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Grenville averages 43 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 200 sunny days per year in Grenville. The US average is 205 sunny days.

Grenville gets some kind of precipitation, on average, 82 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 3
Rain: averages 24 inches of rain a year
Snow: averages 43 inches of snow a year

Bestplaces Comfort Index

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

9.3 Summer - 3.9 Winter
August, July and June are the most pleasant months in Grenville town, while January and December are the least comfortable months.

  ClimateGrenville, South DakotaUnited States
    Unlock38.1 in.
  43.1 in.  Unlock
    Unlock106.2 days
  200 days  Unlock
  82.0°85.8°
    Unlock21.7°
  6.6  Unlock
    Unlock4.3
  1860 ft.  Unlock
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 Grenville town with an average high temperature of 82.0°, which ranks it as one of the coolest places in South Dakota. In Grenville town, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Grenville town are June, August and July.
In Grenville town, there are 8.2 days annually when the high temperature is over 90°, which is one of the coolest places in South Dakota.
January has the coldest nighttime temperatures for Grenville town with an average of 2.6°. This is colder than most places in South Dakota.
In Grenville town, there are 166.9 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in South Dakota.
In Grenville town, there are 35.2 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in South Dakota.
Humidity in Grenville town is generally low and comfortable. But there some days when the humidity becomes unpleasant, especially in July and August. The most humid months (but still comfortable) are July, August and June.
June is the wettest month in Grenville town with 3.8 inches of rain, and the driest month is January with 0.6 inches. The wettest season is Autumn with 43% of yearly precipitation and 8% occurs in Spring, which is the driest season. The annual rainfall of 23.7 inches in Grenville town means that it is about average compared to other places in South Dakota.
June is the rainiest month in Grenville town with 10.4 days of rain, and January is the driest month with only 4.7 rainy days. There are 82.4 rainy days annually in Grenville town, which is about average compared to other places in South Dakota. The rainiest season is Autumn when it rains 33% of the time and the driest is Spring with only a 18% chance of a rainy day.
An annual snowfall of 43.1 inches in Grenville town means that it is snowier than most places in South Dakota. January is the snowiest month in Grenville town with 8.8 inches of snow, and 7 months of the year have significant snowfall.
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