Rolla, ND Climate


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Rolla, ND has a humid continental climate with cold winters and warm summers. Winters bring frequent snowfalls and temperatures that can dip below 0°F, while summers can get hot with temperatures reaching above 90°F. The area experiences all four seasons quite distinctly throughout the year and is known for its moderate precipitation levels and plentiful sunshine hours.

Rolla, North Dakota gets 19 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Rolla averages 42 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 201 sunny days per year in Rolla. The US average is 205 sunny days.

Rolla gets some kind of precipitation, on average, 84 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 78 degrees
Winter Low: the January low is -5
Rain: averages 19 inches of rain a year
Snow: averages 42 inches of snow a year


Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Rolla is 6.1 (10=best), which means it is one of the least comfortable places in North Dakota.

9 Summer - 3.3 Winter
July, August and June are the most pleasant months in Rolla, while January and December are the least comfortable months.

  ClimateRolla, North DakotaUnited States
  18.9 in.38.1 in.
  41.8 in.27.8 in.
  83.7 days106.2 days
  201 days205 days
  77.6°85.8°
  -5.0°21.7°
  6.17
  3.14.3
  1814 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 Rolla with an average high temperature of 77.6°, which ranks it as one of the coolest places in North Dakota. In Rolla, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Rolla are July, August and June.
In Rolla, there are 4.4 days annually when the high temperature is over 90°, which is one of the coolest places in North Dakota.
January has the coldest nighttime temperatures for Rolla with an average of -5.0°. This is one of the coldest places in North Dakota.
In Rolla, there are 202.8 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in North Dakota.
In Rolla, there are 58.9 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in North Dakota.
Humidity in Rolla is generally quite low and comfortable. There are few days during the summer when the humidity becomes unpleasant. The most humid months (but still comfortable) are July, August and June.
June is the wettest month in Rolla with 3.7 inches of rain, and the driest month is February with 0.4 inches. The wettest season is Autumn with 48% of yearly precipitation and 8% occurs in Spring, which is the driest season. The annual rainfall of 18.9 inches in Rolla means that it is about average compared to other places in North Dakota.
June is the rainiest month in Rolla with 11.7 days of rain, and February is the driest month with only 4.3 rainy days. There are 83.7 rainy days annually in Rolla, which is rainier than most places in North Dakota. The rainiest season is Autumn when it rains 35% of the time and the driest is Spring with only a 19% chance of a rainy day.
An annual snowfall of 41.8 inches in Rolla means that it is snowier than most places in North Dakota. December is the snowiest month in Rolla with 8.2 inches of snow, and 8 months of the year have significant snowfall.
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