Sumner County, KS Climate

Sumner, KS County has a mild climate that is typical of the Great Plains region. Summers are hot and humid with temperatures reaching into the mid 90s Fahrenheit during the day, while winters are cold and dry with temperatures sometimes dipping below freezing at night. Precipitation is consistent throughout the year with snowfall occurring from December through March. Though temperatures can be extreme in both seasons, Sumner’s moderate climate makes it an ideal place to live for those looking for warm summers and mild winters.

Sumner County, Kansas gets 35 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Sumner County averages 11 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 225 sunny days per year in Sumner County. The US average is 205 sunny days.

Sumner County gets some kind of precipitation, on average, 74 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 93 degrees
Winter Low: the January low is 22
Rain: averages 35 inches of rain a year
Snow: averages 11 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Sumner County is 7.3 (10=best), which means it is more comfortable than most places in Kansas.

6.7 Summer - 6.1 Winter

September, May and October are the most pleasant months in Sumner County, while January and December are the least comfortable months.

Climate	Sumner, Kansas	United States
	34.6 in.	38.1 in.
	10.6 in.	27.8 in.
	73.6 days	106.2 days
	225 days	205 days
	92.5°	85.8°
	21.6°	21.7°
	7.3	7
	4.9	4.3
	1227 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 Sumner County with an average high temperature of 92.5°, which ranks it as warmer than most places in Kansas. In Sumner County, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Sumner County are May, September and October.

In Sumner County, there are 59.4 days annually when the high temperature is over 90°, which is hotter than most places in Kansas.

January has the coldest nighttime temperatures for Sumner County with an average of 21.6°. This is warmer than most places in Kansas.

In Sumner County, there are 104.5 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Kansas.

In Sumner County, there are 1.7 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Kansas.

The humidity is usually acceptable in Sumner 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. July, August and June are the three most uncomfortably humid months in Sumner County.

June is the wettest month in Sumner County with 5.3 inches of rain, and the driest month is January with 1.0 inches. The wettest season is Autumn with 36% of yearly precipitation and 10% occurs in Spring, which is the driest season. The annual rainfall of 34.6 inches in Sumner County means that it is about average compared to other places in Kansas.

May is the rainiest month in Sumner County with 9.3 days of rain, and January is the driest month with only 3.6 rainy days. There are 73.6 rainy days annually in Sumner County, which is less rainy than most places in Kansas. The rainiest season is Summer when it rains 31% of the time and the driest is Spring with only a 17% chance of a rainy day.

An annual snowfall of 10.6 inches in Sumner County means that it is less snowy than most places in Kansas. December is the snowiest month in Sumner County with 3.3 inches of snow, and 4 months of the year have significant snowfall.

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