A simple definition of a heat wave is a period of extreme heat that lasts two or more days. Heat wave temperatures are well above the historical averages for a given area. This means what is considered a heat wave in northern Minnesota may be a beautiful summer day in Houston.

How to prepare for a summer heatwave?

Check air filters, maintain the condenser unit, optimize thermostat settings, close curtains and shades, seal leaks and cracks around windows and doors, delay using heat-generating appliances until evening.

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