Gann Valley, SD Climate


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United States / South Dakota / No Metro Area / Buffalo County / Gann Valley / Zip Codes
Gann Valley, SD has a variety of climates throughout the year. Summers are hot and humid, with temperatures typically reaching the high 80s. Winters are cold and somewhat dry, averaging around 20 degrees Fahrenheit on average. Spring and fall are mild seasons, with temperatures in the 50s and 60s throughout both periods. Rainfall is generally light throughout the year, but there can be occasional bouts of strong storms that bring more precipitation to the area.

Bestplaces Comfort Index

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

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

  ClimateGann Valley, South DakotaUnited States
  22.4 in.38.1 in.
  36.5 in.27.8 in.
  66.9 days106.2 days
  212 days205 days
  86.4°85.8°
  5.9°21.7°
  6.97
  3.84.3
  1648 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 Gann Valley with an average high temperature of 86.4°, which ranks it as warmer than most places in South Dakota. In Gann Valley, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Gann Valley are June, September and August.
In Gann Valley, there are 24.8 days annually when the high temperature is over 90°, which is hotter than most places in South Dakota.
January has the coldest nighttime temperatures for Gann Valley with an average of 5.9°. This is about average compared to other places in South Dakota.
In Gann Valley, there are 170.3 days annually when the nighttime low temperature falls below freezing, which is colder than most places in South Dakota.
In Gann Valley, there are 28.3 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in South Dakota.
Humidity in Gann Valley 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 Gann Valley with 3.9 inches of rain, and the driest month is January with 0.4 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 22.4 inches in Gann Valley means that it is drier than most places in South Dakota.
June is the rainiest month in Gann Valley with 8.7 days of rain, and December is the driest month with only 3.0 rainy days. There are 66.9 rainy days annually in Gann Valley, which is one of the least rainy places in South Dakota. The rainiest season is Autumn when it rains 34% of the time and the driest is Spring with only a 14% chance of a rainy day.
An annual snowfall of 36.5 inches in Gann Valley means that it is less snowy than most places in South Dakota. March is the snowiest month in Gann Valley with 7.8 inches of snow, and 7 months of the year have significant snowfall.
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