Temperature Map: It's 75 in Santa Monica, 100+ in the Valley
A reader took a look at Weather Underground's Interactive Radar and Weather Station map and overlayed these red arrows pointing out the differences in temperatures around the Southland. He had one word to say: "Wow."
The differences are not so surprising, but still are fascinating to look at it. You can thank the them to a very strong high pressure ridge to the East, prompting heat, and chilly ocean waters to the West combined with a lack of the heat-gifting Santa Ana winds keeping the coast cooler, according to a National Weather Service spokesperson.
But don't get too excited about that 66 degree marking in Santa Monica, unless you're going to take a dip -- it's a sea surface temperature. Still, temps in the 70s on a day like this is nothing to complain about.