Rolla Metro Area, MO Climate

The Rolla, MO Metro Area has a humid subtropical climate, with hot and humid summers and mild winters. The average temperature in the summer ranges from the mid-70s to mid-80s, while winter temperatures usually stay in the upper 20s. Precipitation is abundant throughout the year, with an average of 44 inches per year. Snowfall can be heavy in some winters, which adds to the total precipitation. Rolla sometimes experiences extreme weather events such as severe thunderstorms with heavy downpours of rain, hail, damaging winds, and even occasional tornadoes.

Rolla Metro Area, Missouri gets 47 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Rolla Metro Area averages 14 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 Rolla Metro Area. The US average is 205 sunny days.

Rolla Metro Area gets some kind of precipitation, on average, 109 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 88 degrees
Winter Low: the January low is 20
Rain: averages 47 inches of rain a year
Snow: averages 14 inches of snow a year

Bestplaces Comfort Index

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

7.7 Summer - 5.6 Winter

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

Climate	Rolla, Missouri	United States
	46.5 in.	38.1 in.
	13.6 in.	27.8 in.
	108.5 days	106.2 days
	196 days	205 days
	87.9°	85.8°
	20.2°	21.7°
	7.2	7
	4.4	4.3
	995 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 the Rolla metro area with an average high temperature of 87.9°, which ranks it as cooler than most places in Missouri. In the Rolla metro area, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for the Rolla metro area are September, May and June.

In the Rolla metro area, there are 28.5 days annually when the high temperature is over 90°, which is cooler than most places in Missouri.

January has the coldest nighttime temperatures for the Rolla metro area with an average of 20.2°. This is about average compared to other places in Missouri.

In the Rolla metro area, there are 108.5 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Missouri.

In the Rolla metro area, there are 2.9 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Missouri.

The humidity can be uncomfortably heavy or close in the Rolla metro area 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 the Rolla metro area.

May is the wettest month in the Rolla metro area with 5.2 inches of rain, and the driest month is January with 2.5 inches. The wettest season is Summer with 29% of yearly precipitation and 18% occurs in Spring, which is the driest season. The annual rainfall of 46.5 inches in the Rolla metro area means that it is wetter than most places in Missouri.

May is the rainiest month in the Rolla metro area with 11.9 days of rain, and September is the driest month with only 7.6 rainy days. There are 108.5 rainy days annually in the Rolla metro area, which is one of the rainiest places in Missouri. The rainiest season is Summer when it rains 30% of the time and the driest is Spring with only a 22% chance of a rainy day.

An annual snowfall of 13.6 inches in the Rolla metro area means that it is about average compared to other places in Missouri. January is the snowiest month in the Rolla metro area with 4.3 inches of snow, and 5 months of the year have significant snowfall.

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