This is my theory on that graph. If you live at the 28 parallel You should be a step ahead of that thing. You should start veg on march 22 under flourescent tubes. On April 22 you should transplant. June 22 ripe buds. The spring is The prime temp and alot of rain is the norm although this year has been a drought. The summer gets to hot and rain is far and few between. A plant needs to be established before the intense heat or you will have to water alot.