Climate in Arizona

Arizona State has a desert climate, with hot summers and mild winters. Average temperatures range from the high 80s in summer to the low 50s in winter. Although precipitation is generally low throughout the year, summer months tend to be wetter due to the monsoon season. Arizona State also experiences a wide variety of weather patterns, including dust storms, thunderstorms, and occasional snowfall in the higher elevations. These climate variations make Arizona State an interesting place to explore and enjoy all year round.

Arizona, Arizona gets 12 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Arizona averages 6 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 286 sunny days per year in Arizona. The US average is 205 sunny days.

Arizona gets some kind of precipitation, on average, 44 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.

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Weather Highlights

Summer High: the July high is around 99 degrees
Winter Low: the January low is 34
Rain: averages 12 inches of rain a year
Snow: averages 6 inches of snow a year

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BESTPLACES COMFORT INDEX

Arizona's annual BestPlaces Comfort Index of 7.5 (10=best) indicates it is one of the most pleasant states in the United States.

April, October and March are the most pleasant months in the state of Arizona, while July and August are the least comfortable months.

July is the hottest month for Arizona with an average high temperature of 99.0°, which ranks it as one of the hottest states. In Arizona, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Arizona are April, October and March.

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Arizona has 119.8 days annually when the high temperature is over 90°, which is one of the hottest states in the U.S.

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December has the coldest nighttime temperatures for Arizona with an average of 33.6°. This is one of the warmest of the U.S. states.

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Arizona has 53.2 days annually when the nighttime low temperature falls below freezing, which is warmer than most states in the U.S.

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Arizona averages 0.4 days annually when the nighttime low temperature falls below freezing, which is warmer than most states in the U.S.

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Humidity in the state of Arizona 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.

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August is the wettest month in Arizona with 1.9 inches of rain, and the driest month is June with 0.2 inches. The wettest season is Autumn with 32% of yearly precipitation and 15% occurs in Summer, which is the driest season. Arizona's average annual rainfall of 11.6 inches indicates that it is one of the driest states in the United States.

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August is the rainiest month in Arizona with 6.9 days of rain, and June is the driest month with only 1.2 rainy days. Arizona's annual average of 44.4 days with measurable rain is one of the least rainy states in the United States. The rainiest season is Autumn when it rains 32% of the time and the driest is Summer with only a 18% chance of a rainy day.

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With an average annual snowfall of 6.0 inches, Arizona is one of the least snowy states in the United States. February is the snowiest month in Arizona with 1.4 inches of snow, and 5 months of the year have significant snowfall.

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