People don't get climate period. I was rather surprised to find out that my parents get a snow storm every year in late February or early March that dumps 1-3

People don't get climate period. I was rather surprised to find out that my parents get a snow storm every year in late February or early March that dumps 1-3 inches of snow that takes several days to melt. They live not 40 minutes from La Jolla, a city in Southern California known for year round perfect weather. They're barely at 3,000 feet elevation and as far as I know, the snow line in the Sierra Nevada mountains, even further north, is over twice that [1]. The nearest town a few miles away and a few hundred feet lower receives no snow whatsoever so we've been completely puzzled by the phenomenon. The funny thing is, I can't find any information about it online - it seems to be a very localized phenomenon in a sparsely populated exurban neighborhood and the locals just shrug about it. [1] https://www.mdpi.com/2073-4441/9/11/899/html https://www.mdpi.com/2073-4441/9/11/899/html