I concur with that assessment. It was cold and windy here yesterday, and most people (probably all) would have been darn uncomfortable outdoors after less than half a minute -- unless well bundled up. I know I was uncomfortable just unoading groceries w/o gloves.
Granted, Northern Maine is --much-- more severe, weatherwise, but outdoor decks won't be any help to limit reduction in business due to restricting smoking to the outdoors.