seedcorn, it's our unpredictable summers on the coast, June can be cool and wet, temps are mostly in the 60-70 range during the day dropping at night. During July and August mostly low to mid 70's, temps cooling off at night (right now it's 51F in my greenhouse). In the 80's maybe for a few days, up to a week or two sometimes even the odd 90 in July -August. When this happens you'll find me hiding in the house under a fan, not sure if the whining sound is coming out of me or the fan LOL.
September used to be a cool rainy month ( good for putting in a new lawn, same goes for April) but the last few years we've had some really nice ones. Some years we jump from winter right into summer, no spring to speak of, or, if we had one I didn't notice it. Occasionally we have a decent spring, gradually warming up into a warm not too hot summer climaxed with a warm dry fall right through October. I think it's the lack of heat as far as tomatoes go but the beans sure love our weather. Our last frost date used to be the end of March some years back but now it's more like the end of April. One year we had a killing frost in August, other years not until November, UNPREDICTABLE.
Annette