Last summer was a steamy one for much of North America, and 2019 promises much of the same. The National Weather Service is predicting higher-than-average temperatures for large swaths of the West and Southwest, as well as much of New England. Only the upper Midwest is expected to feel like an average summer. Meteorologists are also predicting high summer humidity and precipitation throughout the Southeast, with an above average hurricane season and higher potential for early tropical storms, according the AccuWeather. When it gets hot and muggy outside, your home air conditioning system is your refuge. But it can really run up your energy bills during the hottest months unless you adopt a few smart energy-saving habits.