Boundary County, ID Climate

Boundary County, ID has a mostly mild climate with warm summers and cold winters. The average summer temperature is around 80 F, while the average winter temperature drops to around 30-40 degrees F. During the summer months, humidity levels remain relatively low making it an ideal place for outdoor activities. Additionally, Boundary County receives an average of only 17 inches of rainfall each year making it one of the driest areas in Idaho. Snowfall is moderate receiving on average just over 75 inches of snow annually.

Boundary County, Idaho gets 24 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Boundary County averages 49 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 170 sunny days per year in Boundary County. The US average is 205 sunny days.

Boundary County gets some kind of precipitation, on average, 120 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 84 degrees
Winter Low: the January low is 22
Rain: averages 24 inches of rain a year
Snow: averages 49 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Boundary County is 6.6 (10=best), which means it is about average compared to other places in Idaho.

8.8 Summer - 3.9 Winter

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

Climate	Boundary, Idaho	United States
	23.8 in.	38.1 in.
	49.4 in.	27.8 in.
	120.1 days	106.2 days
	170 days	205 days
	84.1°	85.8°
	21.8°	21.7°
	6.6	7
	3	4.3
	4070 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.

August is the hottest month for Boundary County with an average high temperature of 84.1°, which ranks it as about average compared to other places in Idaho. In Boundary County, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Boundary County are June, September and July.

In Boundary County, there are 18.9 days annually when the high temperature is over 90°, which is about average compared to other places in Idaho.

December has the coldest nighttime temperatures for Boundary County with an average of 20.9°. This is warmer than most places in Idaho.

In Boundary County, there are 152.1 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Idaho.

In Boundary County, there are 4.1 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Idaho.

Humidity is low in Boundary 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.

November is the wettest month in Boundary County with 3.4 inches of rain, and the driest month is August with 0.9 inches. The wettest season is Spring with 32% of yearly precipitation and 17% occurs in Autumn, which is the driest season. The annual rainfall of 23.8 inches in Boundary County means that it is wetter than most places in Idaho.

November is the rainiest month in Boundary County with 14.2 days of rain, and August is the driest month with only 5.5 rainy days. There are 120.1 rainy days annually in Boundary County, which is rainier than most places in Idaho. The rainiest season is Spring when it rains 29% of the time and the driest is Autumn with only a 19% chance of a rainy day.

An annual snowfall of 49.4 inches in Boundary County means that it is about average compared to other places in Idaho. December is the snowiest month in Boundary County with 19.0 inches of snow, and 5 months of the year have significant snowfall.

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