Southern California is not only sweltering under extreme heat, the city of Imperial actually witnessed rainfall when it was a scorching 119 degrees Fahrenheit outside on July 24, weather experts observed.

The bizarre event set "a new world record for the hottest temperature ever measured while rain was falling," Dr. Jeff Masters, meteorologist and co-founder of Weather Underground, wrote in blog post.

It's pretty rare for rainfall to occur above 100 degrees Fahrenheit, Masters noted, but NOAA weather records show that at 3:53 p.m. local time, light rain started to fall and continued for four hours straight.

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So what does rain on scorching hot day feel like? After ringing up a few city offices and businesses, one Imperial resident told Masters that the rain "made it difficult to breathe" and it felt hard on their heart.

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