Petroleum County, MT Climate

Petroleum County, MT has a semi-arid climate with warm summers and cold winters. During the summer months, temperatures can range from the low 70s to the high 80s Fahrenheit, while during the winter months temperatures can range from the low 20s to the low 40s Fahrenheit. Rainfall is rather light year round, with July being the wettest month of the year. Snowfall is generally light in comparison to other areas of Montana, but there may be occasional snowstorms that bring several inches of snow each year. Winds are generally strong throughout the year and can become quite gusty in spring and fall.

Petroleum County, Montana gets 14 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Petroleum County averages 41 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 Petroleum County. The US average is 205 sunny days.

Petroleum County gets some kind of precipitation, on average, 66 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 87 degrees
Winter Low: the January low is 11
Rain: averages 14 inches of rain a year
Snow: averages 41 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Petroleum County is 7.0 (10=best), which means it is one of the most pleasant places in Montana.

8.9 Summer - 5 Winter

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

Climate	Petroleum, Montana	United States
	Unlock	38.1 in.
	41.0 in.	Unlock
	Unlock	106.2 days
	201 days	Unlock
	86.8°	85.8°
	Unlock	21.7°
	7	Unlock
	Unlock	4.3
	2957 ft.	Unlock

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 Petroleum County with an average high temperature of 86.8°, which ranks it as warmer than most places in Montana. In Petroleum County, there are 2 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Petroleum County are June, September and August.

In Petroleum County, there are 30.4 days annually when the high temperature is over 90°, which is hotter than most places in Montana.

January has the coldest nighttime temperatures for Petroleum County with an average of 11.2°. This is colder than most places in Montana.

In Petroleum County, there are 169.3 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Montana.

In Petroleum County, there are 22.6 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Montana.

Humidity is low in Petroleum County, and some people might find the dryness to be uncomfortable. Days with noticeable humidity are rare throughout the year. A very dry climate can lead to cracked, itchy skin and dry eyes.

May is the wettest month in Petroleum County with 2.6 inches of rain, and the driest month is January with 0.4 inches. The wettest season is Autumn with 39% of yearly precipitation and 10% occurs in Spring, which is the driest season. The annual rainfall of 13.7 inches in Petroleum County means that it is drier than most places in Montana.

May is the rainiest month in Petroleum County with 9.7 days of rain, and February is the driest month with only 3.3 rainy days. There are 65.7 rainy days annually in Petroleum County, which is one of the least rainy places in Montana. The rainiest season is Autumn when it rains 32% of the time and the driest is Spring with only a 16% chance of a rainy day.

An annual snowfall of 41.0 inches in Petroleum County means that it is about average compared to other places in Montana. December is the snowiest month in Petroleum County with 8.1 inches of snow, and 8 months of the year have significant snowfall.

Reviews for Petroleum

See all ()

Write a Review

Start Your Review of Petroleum

Jobs

The premier source for comprehensive city data for over 30 years.