Concerned American
Diamond Member
That is our usual climate here in NE WA, on occasion we get into the 90s and a couple of days of triple digits in July/Aug. so maybe they are local.Better put: they like carrots are a cool-season crop. Hot weather makes things like brussel sprouts, cauliflower and broccoli to bolt (the plant turns to all stem, shoots up and goes to flower instead of producing a big vegetable).
But if you have weather in the upper 50s, 60s and lower 70s, you can grow them any time of year.