Dumb questions I know, but....when getting our tire pressure reading, it's supposed to be a 'cold' reading, correct? If my fronts are supposed to be 110lbs, it's before I go down the road, right?

Now it's hot where I am, and one day before a run I took my pressure readings, one side was a little higher than the other, could the outside temprature and/or sun play that big of a roll in tire pressure? Should I take the readings at first light so daylight doesn't effect them?

Sometimes I realy feel stupid, this is one of those times.