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Excessive is about how long cause it's been about 105 degrees for the last couple weeks...
there doing alright,they look really good I think...still growing quite abit despite the heatwave.
Tiny bit of nute burn on the tips,stopped feeding till heatwave is over unless it tells me it needs some.
I think the heatwave should be over in a few days but it stays pretty hot for the rest of summer here...I'm in cali too.
But I'm in centeral california abit inland...kind of smack dab in the middle and slightly south.
Ya that's excessive. Are you growing outdoors? If so try a mister they sell a wand snake type at HD. I can't remember the name but it puts out a very fine mist of water. That will drop the temperature of the plants about 10-15 degrees. The extra moisture will help to keep the plant from transpiring as well. Sometime there is not much you can do about a heat wave but to pray. Watch for signs of hermie balls on the lower parts of the plants. Pick them off as you find them (if you do).