Heat wave in US cities has shattered temperature records

Weather records across the U.S. are being shattered as a heat wave blankets parts of the country, leaving parts of Arizona, Texas, Oklahoma and more under excessive heat advisories.

Throughout July, temperatures have continually been high globally. Last week, over 110 million Americans were under a heat alert of some kind, which stretched from the West Coast to Louisiana. Earlier this month, the Earth saw its hottest day on record, hitting 63 degrees Fahrenheit.

As temperatures continue to climb in various parts of the U.S., here’s what you need to know about the records that have already been challenged.

Where have heat records been broken?

Arizona

In Arizona, Phoenix has seen 18 days in a row with temperatures recording at least 110 degrees Fahrenheit, tying the all-time record. If temperatures hit 110 degrees on Tuesday, it will break the record, setting a new one of 19 straight days.

Additionally, temperatures have not gone below 90 degrees in the city for the past nine days. According to AccuWeather‘s forecast, people can expect temperatures above 110 degrees for the rest of the week and into the weekend.

If the temperature should reach Tuesday’s forecasted high of 116 degrees, it would also break the record high for July 18, set in 1989. Thursday’s forecast high is 117 degrees, which would break a 1978 record.