“dislike heat and humidity” = you’re screwed 
I mean, LA can be hot, but the summer I spent there, it was NOT humid at all. Anywhere in the DC metro area - well, almost anywhere in the eastern half of the country - and humidity is an issue. Fortunately, we all have air conditioning.
Traffic sucks. It’s on a par with the LA area, if not quite as widespread. From memory, there were 5-traffic-lane superhighways in near-gridlock, 60-70 miles away from LA, when we were there. Here, if you’re that far away from the city, traffic will be fine (except for I-95 south of DC: Richmond Virginia is 90 miles from my house and I’ve had it take 3-4 hours).
Speaking of 95: It is not “The 95”. We don’t put “the” in front of interstate highway names on this coast. I can always tell when a TV or movie was written by someone from California, because a character says “the 95”. Named roads may be prefaced with “the”, e.g. “the Fairfax County Parkway” or “The Intercounty Connector”. Saying “the 95” will get you looked at funny and probably laughed at :D.
The nice thing about the area is that while we do indeed have weather, the winters aren’t (usually) as bad as further north, and the summers - while as hot and muggy as further south - are not as hot/muggy for as long. My in-laws live in Florida and it starts getting vile there in April. Our weather can be changeable as well - last week there were days where it didn’t break 70, but the week before it broke 90 several days in a row.
No earthquakes. Um, actually that’s not quite true, we had one about 3 years ago - but they’re so rare as to be a complete bafflement. We do get nasty storms sometimes - at least 3 hurricanes in the past 12+ years, and there are nasty non-hurricane rainstorms a couple times a year.
Mass transit is generally decent if you live closer in. Further out, and you’d have a hard time getting by without a car. Even closer in, it’s much easier to have a car for evening / weekend stuff - my neighborhood only has rush-hour buses on weekdays, and nothing on the weekends.