After the temperature tied a daily record high of 118 degrees in Needles on Aug. 13, a small storm rolled into the area, dropping rain with a temperature that had only cooled to 115 degrees at 3:56 p.m. PDT Monday.
According to weather records researcher Maximiliano Herrera, that's the hottest rain ever recorded, Dr. Jeff Masters, co-founder of the website Weather Underground, reported.
The previous record for hottest rain was a rain shower at 109 degrees earlier this year in Mecca, Saudi Arabia on June 5 and in Marrakech, Morocco on July 10, 2010, according to the National Weather Service (NWS).
"Associated weather conditions were perfect for such an event, as maximum diurnal surface heating during a record-level low desert heat wave combined with the arrival of residual raindrops from a dissipating upwind thunderstorm," said Dr. Warren Blier of the NWS Monterey, Calif. office.
Satellite imagery over California and Arizona taken at 1:25 p.m. PDT Monday, captured the developing thunderstorms around the town of Needles.
That wasn't the only record shattered with the unusual precipitation.
The rain fell within a very dry air mass at just 11 percent humidity, setting another world record for the lowest humidity that rain has ever occurred.
As a result of the dry air, only a small amount of the super-hot rain droplets actually made it to the surface.
Rain gauges in the area only recorded a trace of precipitation.