Probably a combination of the two. Climate will only take you so far.
You would not know that we are 8a though. From sunup till nightfall Sunday, the temperature is supposed to continue dropping and the high won't get out of the 30's. Monday morning is going to be doggone cold, 17F! Wow
Every morning for the rest of the week is supposed to be in the mid-20's. Double-Wow.