Arizona Weather

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Arizona is best known for its deserts and hot, dry cities, but these areas make up only the low mountain ranges and arid valleys of the southwestern part of the state. It is here that temperatures can reach a blistering 125 degrees F and the precipitation is as low as 4 inches per year. But while most of the state is a semiarid region with long periods of little to no precipitation, is far from one big, baking desert.

The high plateau in the northeastern part of the state sees the most precipitation (in the form of rain and melted snowfall), with 25 to 30 inches a year. The mountainous regions in the southeast get less precipitation at 10 inches. Both regions receive periodic cold air masses that cause temperatures to drop below zero during winter months. High temperatures are common throughout the state, with averages of 86 degrees to 92 degrees. Temperatures also tend to drop as much as 50 degrees from day to night.