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Emergency Management

Seasonal News

Monsoon Season

During the monsoon, or summer thunderstorm season, Arizona experiences more severe weather than many other states. These summer thunderstorms can be dangerous. Monsoon is a weather condition that is actually defined as a season. In Arizona, we typically experience monsoon storms during the summer. Humidity levels increase and the season is marked by wind storms, dust storms, and periods of heavy desert rains. On rare occasions, a severe storm may even spawn a tornado. More often, we experience high winds, dust storms and severe downpours resulting in flash floods during this season.

In Phoenix, the monsoon is considered to have arrived when we have three consecutive days of dew point averages of 55 degrees or higher. The average starting date of the monsoon is July 7. The average ending date of the monsoon is September 13. In Phoenix, normal rainfall during July, August and September is 2.65 inches. For the latest Arizona forecast, watches and warnings, please visit the National Weather Service.

Heat Warnings

We've all heard the phrase "It's a dry heat" and it's true that heat here in our desert is dry, but it's also deceptively dangerous. Heat is the single most dangerous natural phenomenon in Arizona. Each year, between 30 and 50 residents die from excessive exposure to heat. What makes a very hot day a "heat emergency?" It's more than a high temperature. To determine heat levels, view the following chart.

In the summer heat it is more important than ever to keep hydrated, therefore Maricopa County has established water hydration stations throughout the County where people can go to for water, refuge or both. The map also provides refuge locations should an emergency occur and you need to seek shelter. Additionally, there are collections and donations sites that are collecting bottled water and other donations such as clothing, unopened sun block, and food items for those who are in need.


When a life-threatening emergency exists or is imminent.


When a life-threatening heat emergency may occur in the next 24-48 hours.


When the temperature is forecast to be unusually hot but not life-threatening.


For more information on Arizona heat and your health, please visit the Maricopa County website.

Living in Desert Heat

Sign up for a free course on how to live in the desert. Information will be sent directly to you and will cover an array of topics related to handling the hot summer months including how to conform your home, your health, your car, your pets, and more.


Last Updated: 8/21/2012

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City of Goodyear • 190 N. Litchfield Road • Goodyear AZ 85338 • Phone 623-932-3910 • Toll-Free 1-800-872-1749
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