Zip 57278 (Willow Lake, SD) Climate

Willow Lake, SD has a humid continental climate that is classified as Dfb on the Köppen climate classification system. Summers in the area are relatively warm and humid, while winters tend to be cold and snowy. The average yearly temperature is around 46°F (7°C), with January being the coldest month at an average of 20°F (-7°C), and July being the warmest month, with temperatures averaging at 70°F (21°C). Precipitation in Willow Lake is moderate throughout the year, totaling 33 inches (838 mm) annually. Much of the precipitation falls between April and October, with an average snowfall of 19 inches (481 mm) each winter.

Willow Lake (zip 57278), South Dakota gets 25 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Willow Lake (zip 57278) averages 41 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 211 sunny days per year in Willow Lake (zip 57278). The US average is 205 sunny days.

Willow Lake (zip 57278) gets some kind of precipitation, on average, 81 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 83 degrees
Winter Low: the January low is 4
Rain: averages 25 inches of rain a year
Snow: averages 41 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Willow Lake is 6.7 (10=best), which means it is less comfortable than most places in South Dakota.

9.3 Summer - 4 Winter

August, July and June are the most pleasant months in Willow Lake, while January and December are the least comfortable months.

Climate	Willow Lake, South Dakota	United States
	Unlock	38.1 in.
	41.4 in.	Unlock
	Unlock	106.2 days
	211 days	Unlock
	82.6°	85.8°
	Unlock	21.7°
	6.7	Unlock
	Unlock	4.3
	1767 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 Willow Lake with an average high temperature of 82.6°, which ranks it as cooler than most places in South Dakota. In Willow Lake, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Willow Lake are June, August and July.

In Willow Lake, there are 9.7 days annually when the high temperature is over 90°, which is cooler than most places in South Dakota.

January has the coldest nighttime temperatures for Willow Lake with an average of 4.2°. This is colder than most places in South Dakota.

In Willow Lake, there are 169.3 days annually when the nighttime low temperature falls below freezing, which is colder than most places in South Dakota.

In Willow Lake, there are 32.3 days annually when the nighttime low temperature falls below zero°, which is colder than most places in South Dakota.

The humidity is usually comfortable in Willow Lake 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 Willow Lake with 4.1 inches of rain, and the driest month is January with 0.6 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 25.3 inches in Willow Lake means that it is wetter than most places in South Dakota.

June is the rainiest month in Willow Lake with 10.1 days of rain, and January is the driest month with only 4.5 rainy days. There are 80.9 rainy days annually in Willow Lake, which is about average compared to other places in South Dakota. The rainiest season is Autumn when it rains 32% of the time and the driest is Spring with only a 17% chance of a rainy day.

An annual snowfall of 41.4 inches in Willow Lake means that it is snowier than most places in South Dakota. March is the snowiest month in Willow Lake with 7.8 inches of snow, and 7 months of the year have significant snowfall.

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