I know that cement(the main ingredient in concrete) won't fully cure at less than 55F.
Some mixes have additives that allow the cement/water chemical reaction to cure at lower temps. Cement that has been stored in a moist environment can absorb enough moisture to lock up the catalyst capacity.
Sorry, trivia that I learned when doing concrete sculpture.
But you might be fine for post anchoring.
How far down will you dig?
Do over do yourself!
Take pics!
Some mixes have additives that allow the cement/water chemical reaction to cure at lower temps. Cement that has been stored in a moist environment can absorb enough moisture to lock up the catalyst capacity.
Sorry, trivia that I learned when doing concrete sculpture.
But you might be fine for post anchoring.
How far down will you dig?
Do over do yourself!
Take pics!