Washington County, CO Climate

Washington County, Colorado has a mild climate, with hot summers and cold winters. During the summer months temperatures typically range between 50°F and 90°F. Winters are cold and snowy, with average temperatures ranging from just above freezing to the low-30s. The county receives an average of 24 inches of precipitation per year, most of which falls during the spring and summer months. Snowfall averages around 33 inches per year, and snow cover usually lasts from mid-November to early April.

Washington County, Colorado gets 17 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Washington County averages 33 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 252 sunny days per year in Washington County. The US average is 205 sunny days.

Washington County gets some kind of precipitation, on average, 72 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 89 degrees
Winter Low: the January low is 15
Rain: averages 17 inches of rain a year
Snow: averages 33 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Washington County is 7.3 (10=best), which means it is more comfortable than most places in Colorado.

8.8 Summer - 5.5 Winter

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

Climate	Washington, Colorado	United States
	16.8 in.	38.1 in.
	33.1 in.	27.8 in.
	71.6 days	106.2 days
	252 days	205 days
	88.7°	85.8°
	15.2°	21.7°
	7.3	7
	4.8	4.3
	4602 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 Washington County with an average high temperature of 88.7°, which ranks it as warmer than most places in Colorado. In Washington County, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Washington County are September, June and May.

In Washington County, there are 36.2 days annually when the high temperature is over 90°, which is hotter than most places in Colorado.

December has the coldest nighttime temperatures for Washington County with an average of 15.1°. This is about average compared to other places in Colorado.

In Washington County, there are 163.3 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Colorado.

In Washington County, there are 8.1 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Colorado.

Humidity in Washington County 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 August, July and June.

July is the wettest month in Washington County with 2.9 inches of rain, and the driest month is January with 0.3 inches. The wettest season is Autumn with 46% of yearly precipitation and 7% occurs in Spring, which is the driest season. The annual rainfall of 16.8 inches in Washington County means that it is about average compared to other places in Colorado.

May is the rainiest month in Washington County with 9.2 days of rain, and January is the driest month with only 3.2 rainy days. There are 71.6 rainy days annually in Washington County, which is less rainy than most places in Colorado. The rainiest season is Autumn when it rains 36% of the time and the driest is Spring with only a 14% chance of a rainy day.

An annual snowfall of 33.1 inches in Washington County means that it is less snowy than most places in Colorado. December is the snowiest month in Washington County with 5.9 inches of snow, and 8 months of the year have significant snowfall.

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