Maricopa County, AZ Climate

Maricopa, AZ County has a very warm and arid climate. Summers are hot and dry, with temperatures reaching up to 110°F at times. Winters are mild and sunny, with occasional cold spells that can bring temperatures down into the 30s at night. Rainfall is minimal in Maricopa, AZ County, averaging only 4 inches per year in most areas. Despite the extreme heat of summer, it is not uncommon for dust storms to occur during this season as well. The area rarely experiences snow or sleet except in higher-elevation mountain areas.

Maricopa County, Arizona gets 10 inches of rain, on average, per year. The US average is 38 inches of rain per year.

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

On average, there are 296 sunny days per year in Maricopa County. The US average is 205 sunny days.

Maricopa County gets some kind of precipitation, on average, 34 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 105 degrees
Winter Low: the January low is 42
Rain: averages 10 inches of rain a year
Snow: averages 0 inches of snow a year

Bestplaces Comfort Index

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

4.3 Summer - 8.7 Winter

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

Climate	Maricopa, Arizona	United States
	9.7 in.	38.1 in.
	0.1 in.	27.8 in.
	33.6 days	106.2 days
	296 days	205 days
	104.8°	85.8°
	42.0°	21.7°
	7.3	7
	6.4	4.3
	1659 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 Maricopa County with an average high temperature of 104.8°, which ranks it as warmer than most places in Arizona. In Maricopa County, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Maricopa County are March, November and April.

In Maricopa County, there are 163.5 days annually when the high temperature is over 90°, which is hotter than most places in Arizona.

December has the coldest nighttime temperatures for Maricopa County with an average of 41.0°. This is warmer than most places in Arizona.

In Maricopa County, there are 6.5 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Arizona.

In Maricopa 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 Maricopa 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.

August is the wettest month in Maricopa County with 1.2 inches of rain, and the driest month is June with 0.0 inches. The wettest season is Spring with 36% of yearly precipitation and 17% occurs in Summer, which is the driest season. The annual rainfall of 9.7 inches in Maricopa County means that it is drier than most places in Arizona.

August is the rainiest month in Maricopa County with 4.2 days of rain, and June is the driest month with only 0.4 rainy days. There are 33.6 rainy days annually in Maricopa County, which is less rainy than most places in Arizona. The rainiest season is Spring when it rains 35% of the time and the driest is Summer with only a 19% chance of a rainy day.

An annual snowfall of 0.1 inches in Maricopa County means that it is less snowy than most places in Arizona. December is the snowiest month in Maricopa County with 0.0 inches of snow, and no months of the year have significant snowfall.

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