El Paso’s average temperature last month was 79.5 degrees, tying for the second-hottest May on record.

The only hotter May came in 1996, when the average temperature was 80.1. May 2018 also had an average temperature of 79.5.

El Paso’s temperatures have climbed rapidly in recent decades as a result of climate change and the urban heat island effect. From 1897 to 1999, the average May temperature for El Paso was 72.3 degrees. Since 2000, the average May temperature has been 75.4 degrees, a 4.3 percent increase.

Here is the average May temperature for El Paso by year, according to National Weather Service records.

Robert Moore is the founder and CEO of El Paso Matters. He has been a journalist in the Texas Borderlands since 1986.