I don't have hard data to back this up, but a number of my coworkers including a weekend sailor all feel that the general coastal climate and wind patterns have

I don't have hard data to back this up, but a number of my coworkers including a weekend sailor all feel that the general coastal climate and wind patterns have changed compared to what we remember from 20 years ago. There seems to be much less of the strongly seasonal offshore flow (the Santa Ana winds) reaching us at the coast. This used to be a regular thing ramping up in the late summer and fall with huge wind gusts damaging local trees etc. Now, it seems like we hear about winds up in the mountains but they run out of energy (or lift above the surface?) before reaching the coast, while we can definitely feel the grit and see the brown, dirty layer of air extend out over the ocean. Similarly, we have all commented on the disturbance in the strongly seasonal pattern of onshore flow (June Gloom). We remember more contrast between foggy mornings with the marine layer reaching many miles inland on some mornings but retreating and burning off, tending to blue skies in mid summer. In recent years, the marine layer seems to visit randomly throughout the year and it often seems to just park slightly off shore or mere blocks inland, with haze and humidity instead of sharp boundary between blue sky and fog. In our coastal area between LAX and Santa Monica, we haven't had the obvious wildfire smoke impact that I saw during visits to the S.F. Bay Area this year.