McPherson County, SD Climate

McPherson, SD County has a climate that is dry and temperate. Summers are hot and humid with temperatures frequently reaching into the 90s. Winters are cold and snowy, with temperatures dropping to below freezing for extended periods of time. The area receives an average of 14 inches of precipitation annually, most commonly in the form of snowfall during the winter months. During the summer months, thunderstorms can occur but generally do not last long. Overall, McPherson County experiences four distinct seasons with a wide range of temperatures throughout the year.

McPherson County, South Dakota gets 20 inches of rain, on average, per year. The US average is 38 inches of rain per year.

McPherson County averages 38 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 202 sunny days per year in McPherson County. The US average is 205 sunny days.

McPherson County gets some kind of precipitation, on average, 80 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 3
Rain: averages 20 inches of rain a year
Snow: averages 38 inches of snow a year

Bestplaces Comfort Index

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

9.2 Summer - 4 Winter

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

Climate	McPherson, South Dakota	United States
	Unlock	38.1 in.
	38.1 in.	Unlock
	Unlock	106.2 days
	202 days	Unlock
	83.3°	85.8°
	Unlock	21.7°
	6.6	Unlock
	Unlock	4.3
	1822 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 McPherson County with an average high temperature of 83.3°, which ranks it as cooler than most places in South Dakota. In McPherson County, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for McPherson County are June, August and July.

In McPherson County, there are 13.0 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 McPherson County with an average of 3.1°. This is colder than most places in South Dakota.

In McPherson County, there are 178.8 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in South Dakota.

In McPherson County, there are 34.0 days annually when the nighttime low temperature falls below zero°, which is colder than most places in South Dakota.

Humidity in McPherson County 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 McPherson County with 3.5 inches of rain, and the driest month is January with 0.4 inches. The wettest season is Autumn with 44% of yearly precipitation and 6% occurs in Spring, which is the driest season. The annual rainfall of 20.2 inches in McPherson County means that it is drier than most places in South Dakota.

June is the rainiest month in McPherson County with 10.4 days of rain, and December is the driest month with only 4.4 rainy days. There are 79.6 rainy days annually in McPherson County, 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 17% chance of a rainy day.

An annual snowfall of 38.1 inches in McPherson County means that it is about average compared to other places in South Dakota. March is the snowiest month in McPherson County with 7.2 inches of snow, and 7 months of the year have significant snowfall.

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