Yuma County, AZ Climate

Yuma, AZ County enjoys a unique climate with warm temperatures year round. The area has hot summers reaching up to 118°F and mild winters, rarely dropping below 44°F. From June to August the area receives little rainfall and is considered one of the driest regions in the US. Despite this arid climate, winter snowfall is common along the Colorado River. With an average of 4 inches of precipitation each year, Yuma County has a semi-arid climate with abundant sunshine and occasional rainstorms that bring a welcome relief to the region during the summer months.

Yuma County, Arizona gets 4 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Yuma County averages 0 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 313 sunny days per year in Yuma County. The US average is 205 sunny days.

Yuma County gets some kind of precipitation, on average, 17 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 107 degrees
Winter Low: the January low is 44
Rain: averages 4 inches of rain a year
Snow: averages 0 inches of snow a year

Bestplaces Comfort Index

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

4.2 Summer - 8.9 Winter

March, November and April are the most pleasant months in Yuma County, while August and July are the least comfortable months.

Climate	Yuma, Arizona	United States
	Unlock	38.1 in.
	0.0 in.	Unlock
	Unlock	106.2 days
	313 days	Unlock
	107.1°	85.8°
	Unlock	21.7°
	7.3	Unlock
	Unlock	4.3
	868 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 Yuma County with an average high temperature of 107.1°, which ranks it as one of the hottest places in Arizona. In Yuma County, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Yuma County are November, March and February.

In Yuma County, there are 175.8 days annually when the high temperature is over 90°, which is one of the hottest places in Arizona.

December has the coldest nighttime temperatures for Yuma County with an average of 42.8°. This is one of the warmest places in Arizona.

In Yuma County, there are 4.4 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Arizona.

In Yuma County, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Arizona.

Humidity in Yuma 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 September.

December is the wettest month in Yuma County with 0.6 inches of rain, and the driest month is June with 0.0 inches. The wettest season is Spring with 40% of yearly precipitation and 15% occurs in Summer, which is the driest season. The annual rainfall of 3.9 inches in Yuma County means that it is one of the driest places in Arizona.

January is the rainiest month in Yuma County with 2.5 days of rain, and June is the driest month with only 0.2 rainy days. There are 17.2 rainy days annually in Yuma County, which is one of the least rainy places in Arizona. The rainiest season is Spring when it rains 40% of the time and the driest is Summer with only a 18% chance of a rainy day.

There is rarely any recorded snowfall in Yuma County, ranking it as one of the least snowy places in Arizona. Any measurable snowfall is a rare occurance in Yuma County.

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