Oh, sorry, let me mention what we want to plant -- tomatoes and peppers, mostly. Maybe some zucchini.

70's and 50's......sigh......doesn't get much better than that here during some summers...guess I better let the SoCal folks answer.

I found the following web site to be most helpful to me. It was so confusing to read all of the different planting dates. In our particular growing zone, with different temperature variations, it is reassuring to me to refer to this schedule from time to time:

www.digitalseed.com/gardener/schedule/vegetable.html

Sorry I still don't know how to post a link, hope you can copy and paste.

Just my 2 c's.

Bejay

Yes, you can set out tomato and pepper starts now; they will begin growth in ernest once night temps average 55F or greater. Have some milk jugs--bottoms cut out--ready to set over the seedlings should you expect a frost. Your proximity to the ocean makes frost unlikely, however. Perhaps wait another few weeks to put in beans or zucchini. By the way, you are likely in USDA zone 9b.

Here is a link that might be useful: HarvestToTable.com

Yep, set them out now if you don't mind covering in case of frost. I'm a zone (or half a zone) cooler than you are and we've been selling tomato and pepper starts at the nursery for two weeks to people who want to get an early jump and don't mind covering when temps drop.

I also agree with the advice to wait a bit longer for beans, squash, etc. Our last average frost date is March 15. Since that means that half the time we won't get a frost after that date and half the time we will, I'm waiting 'til the beginning of April for those things to up my chances I won't have to drag covers over everything. I'll probably set out a few tomatoes and peppers before that though ~ it's hard to fight the urge to have the first ripe tomato in the neighborhood. ;)