Blue sky day and about an hour after sunrise, I checked the temperature in the greenhouse. It was in the high 40's (9°C).
Outdoors, it was in the 40's by then but had dropped into the 30's, earlier. We are getting back to that after warmer than normal.
I really dislike fretting about the greenhouse temperatures. It helps that the ordeal starts later in recent years. There won't be much choice in a week or so.
Steve
Cat' , you like old thread

. Here's one from 12 years ago when I still had that lower elevation garden, etc. and was making an earlier start of things.
My good south window in the house has just been changed and the finish on the sill has dried so the plants were moved back in and the greenhouse furnace turned off last night. I am able to fit 12 containers with seedlings on that window sill and a table, inches away. With only 7 containers so...
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