Bon Homme County, SD Climate

Bon Homme, SD County has a continental climate with hot summers and cold winters. The temperatures in summer average around 80°F (27°C), while the winters average around 15°F (-9°C). There is an average of 20 inches (50 cm) of precipitation each year, most of which falls between May and September. The area experiences frequent strong winds throughout the year, and blizzards occasionally hit the region during winter months. Over the course of a year, Bon Homme County receives on average 2200 hours of sunshine per year.

Bon Homme County, South Dakota gets 26 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Bon Homme County averages 35 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 217 sunny days per year in Bon Homme County. The US average is 205 sunny days.

Bon Homme County gets some kind of precipitation, on average, 83 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 87 degrees
Winter Low: the January low is 10
Rain: averages 26 inches of rain a year
Snow: averages 35 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Bon Homme County is 7.0 (10=best), which means it is one of the most pleasant places in South Dakota.

8.9 Summer - 4.7 Winter

June, September and August are the most pleasant months in Bon Homme County, while January and December are the least comfortable months.

Climate	Bon Homme, South Dakota	United States
	25.7 in.	38.1 in.
	35.3 in.	27.8 in.
	82.8 days	106.2 days
	217 days	205 days
	86.8°	85.8°
	9.9°	21.7°
	7	7
	3.6	4.3
	1425 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 Bon Homme County with an average high temperature of 86.8°, which ranks it as warmer than most places in South Dakota. In Bon Homme County, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Bon Homme County are September, June and May.

In Bon Homme County, there are 27.3 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 Bon Homme County with an average of 9.9°. This is warmer than most places in South Dakota.

In Bon Homme County, there are 154.4 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in South Dakota.

In Bon Homme County, there are 18.9 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in South Dakota.

The humidity is usually comfortable in Bon Homme County but some summer months can be sticky or muggy. July is the most humid month, though humidity is low for most of the year. The most humid months are July, August and June.

June is the wettest month in Bon Homme County with 3.7 inches of rain, and the driest month is January with 0.5 inches. The wettest season is Autumn with 38% of yearly precipitation and 7% occurs in Spring, which is the driest season. The annual rainfall of 25.7 inches in Bon Homme County means that it is wetter than most places in South Dakota.

May is the rainiest month in Bon Homme County with 10.0 days of rain, and January is the driest month with only 4.4 rainy days. There are 82.8 rainy days annually in Bon Homme County, which is rainier than most places in South Dakota. The rainiest season is Autumn when it rains 31% of the time and the driest is Spring with only a 16% chance of a rainy day.

An annual snowfall of 35.3 inches in Bon Homme County means that it is less snowy than most places in South Dakota. December is the snowiest month in Bon Homme County with 7.0 inches of snow, and 7 months of the year have significant snowfall.

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