Up here, in Wisconsin, it is _already_ less than a month til the normal first frost. Much of July was hot up here.
When we have these sorts of cool summers, it typically heats up the end of August through the middle of September,light frost comes at the regular time (9/20-9/24) and then we have a warm 3 weeks until about October 15 or so. If we cover the garden when frost is predicted, things will continue to grow some for a couple more weeks.
This sort of late Spring, cool Summer has happened before.
Undoubtedly.
However, my 80yr old dad who farmed was shocked at the frost in May. That hasn’t happened in his lifetime. It broke a record from the late 1890’s.
I’d love to see the temps and first/last frost dates around here from the Dalton Minimum.