Being a southern Cali girl where cold is about 60 and hot isn't much more than 90, lol, even northern California's temps push me...summer high is often over 100 and average cold is around 40 with the occasional night down in the low 30's but we had mid 20's a few nights ago!!
The ocean really makes the temperatures more consistent - I lived less then 10 miles away - which is why there wasn't too much range...now we're inland by a couple hundred miles along with being about 400 miles further north - so we get four seasons now - but I am getting more comfortable with it being wider
Having proper clothes helps too!! I'm perfectly happy with 48F