As weather.com reports:
On the final two days of April, Amarillo, Texas saw temperatures rise well into the 90s. A record high temperature of 97 degrees was set on April 30. A little more than 24 hours later on the evening of May 1, temperatures in this Texas Panhandle city plummeted into the 30s before bottoming out at 33 degrees on the morning of May 2. The wind chill at the time was 19 degrees.