Sumner, MO Climate

Sumner, MO has a humid continental climate, with warm summers and cold winters. Summers are typically hot and humid, with temperatures averaging in the mid-80s during the day and lows in the high 60s at night. Winters are cold, with temperatures usually hovering around freezing or below during January and February. Precipitation is evenly distributed throughout the year, although snowfall does occur occasionally during the winter months. Overall, Sumner has temperate weather that is suitable for many outdoor activities throughout most of the year.

Sumner, Missouri gets 41 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Sumner averages 13 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 196 sunny days per year in Sumner. The US average is 205 sunny days.

Sumner gets some kind of precipitation, on average, 96 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 17
Rain: averages 41 inches of rain a year
Snow: averages 13 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Sumner is 7.2 (10=best), which means it is more comfortable than most places in Missouri.

8.2 Summer - 5.4 Winter

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

Climate	Sumner, Missouri	United States
	41.2 in.	38.1 in.
	13.2 in.	27.8 in.
	95.6 days	106.2 days
	196 days	205 days
	86.4°	85.8°
	16.7°	21.7°
	7.2	7
	4.4	4.3
	682 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 with an average high temperature of 86.4°, which ranks it as one of the coolest places in Missouri. In Sumner, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Sumner are September, June and May.

In Sumner, there are 20.4 days annually when the high temperature is over 90°, which is one of the coolest places in Missouri.

January has the coldest nighttime temperatures for Sumner with an average of 16.7°. This is colder than most places in Missouri.

In Sumner, there are 120.1 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Missouri.

In Sumner, there are 6.3 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Missouri.

The humidity can be uncomfortably heavy or close in Sumner during the summer months. July is the most humid month, though humidity is low for most of the year. July, August and June are the three most humid months in Sumner.

June is the wettest month in Sumner with 5.4 inches of rain, and the driest month is January with 1.3 inches. The wettest season is Autumn with 35% of yearly precipitation and 12% occurs in Spring, which is the driest season. The annual rainfall of 41.2 inches in Sumner means that it is drier than most places in Missouri.

May is the rainiest month in Sumner with 11.2 days of rain, and January is the driest month with only 5.5 rainy days. There are 95.6 rainy days annually in Sumner, which is less rainy than most places in Missouri. The rainiest season is Summer when it rains 30% of the time and the driest is Spring with only a 19% chance of a rainy day.

An annual snowfall of 13.2 inches in Sumner means that it is about average compared to other places in Missouri. December is the snowiest month in Sumner with 3.9 inches of snow, and 5 months of the year have significant snowfall.