You may prune your fruit trees even in frosty weather. If you have the time to do it, go for it.
You should not make use of tree wound paint after pruning, it can slow down regeneration and promote decay.
Wisteria can be pruned now. So why not get at it?
Nesting season should be over now, that means that you can now start to prune hedges.
July is a good month so summer prune apple trees. So if you have one, why not get at it?
You should not prune your plants when the conditions are really dry. It just puts the plant under more stress.
Silver-leafed plants should be pruned this month, that way they will stay thick and bushy.