We rarely get fog here in the desert. I only remember seeing it a couple of times in the 40 years we've been here. I grew up in a suburb of Los Angeles and I remember fog as a kid, but the desert has two 10,000 foot mountains blocking the pass from the coast and a range of 8,000 feet (plus) blocking the western edge. So, if we get fog, it comes up from the south.
Anyway, I was so excited to see it that I ran out with my camera before breakfast and then hopped in my car after breakfast and I drove around town (Temecula, Old Town). It was so delightful to see the town enveloped with fog!