Gregory County, SD Climate

Gregory, South Dakota is located in the Great Plains region of the United States. The climate in this area is typically dry and semi-arid with very hot summers and cold winter temperatures. During the summer months, average temperatures range from 75 to 95 degrees Fahrenheit with occasional days reaching up to 100 degrees or higher; winters on the other hand can bring overnight lows near 0 degrees and highs barely reaching the freezing mark. Precipitation levels are low throughout the year, causing extended periods of drought during certain times. Despite these conditions, agriculture plays an important role in Gregory’s economy and provides a large percentage of its employment opportunities.

Gregory County, South Dakota gets 25 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Gregory County averages 41 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 222 sunny days per year in Gregory County. The US average is 205 sunny days.

Gregory County gets some kind of precipitation, on average, 76 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 86 degrees
Winter Low: the January low is 11
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 Gregory County is 7.0 (10=best), which means it is one of the most pleasant places in South Dakota.

9.2 Summer - 4.8 Winter

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

Climate	Gregory, South Dakota	United States
	25.0 in.	38.1 in.
	40.8 in.	27.8 in.
	76.3 days	106.2 days
	222 days	205 days
	86.2°	85.8°
	10.6°	21.7°
	7	7
	3.6	4.3
	1932 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 Gregory County with an average high temperature of 86.2°, which ranks it as warmer than most places in South Dakota. In Gregory County, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Gregory County are June, September and August.

In Gregory County, 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 Gregory County with an average of 10.6°. This is warmer than most places in South Dakota.

In Gregory County, there are 158.3 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in South Dakota.

In Gregory County, there are 18.5 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in South Dakota.

Humidity in Gregory County 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 Gregory County with 3.9 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 25.0 inches in Gregory County means that it is wetter than most places in South Dakota.

June is the rainiest month in Gregory County with 9.8 days of rain, and January is the driest month with only 3.5 rainy days. There are 76.3 rainy days annually in Gregory County, which is less rainy than most places in South Dakota. The rainiest season is Autumn when it rains 32% of the time and the driest is Spring with only a 15% chance of a rainy day.

An annual snowfall of 40.8 inches in Gregory County means that it is snowier than most places in South Dakota. March is the snowiest month in Gregory County with 7.9 inches of snow, and 7 months of the year have significant snowfall.

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