Last night. Hehe.
I use the farmers almanac and look through historical weather patterns via NOAA. What I'm trying to do is find a point to start the plants under indoor lighting that is 3-6 weeks away from 50F soil temps, or better, and enough daylight to keep em from doin an early flip/reveg. Mostly I trust my gut and all the metal in my body. I can feel barometric shifts. A barometer works as well. Thinking about buying a little weather station and learning some meteorology.
Thinkin late April an they'll be ready to weather the weather.
Started late Feb last year. I froze em 'n cooked em. It was way too cold to start that early and when I bought my first grow light I fried them due to ignorance. The upside to my dumba$$ness, they stalled and I put them in the garden somwhere around the April-May point (I think?). It'll be in my Growing Log. I wish there was a good way to index my long log. Maybe start another diary thread with chapters and the pg#s & dates that coincide with them. Each time I finish a grow I can make an entry. It'll only work if I can keep people from commenting on it. Oh..oh..oh, I know, I know... Create a thread for each chapter's index. Then it wouldn't matter how many comments were made. All the pertinent info would be in the first post.