Yes, there is a correlation, albeit one that cannot be trusted or confirmed w/out testing the air temp. Whether or not it is actually within a degree or two requires testing the air temp. This would be fine if "close enough" was what one needed; in many instances, it would be fine. There are lots of ways that laser thermometers can be a great help, & there are a few ways that they can mislead and/or misinterpret results. If you want to know air temp, a $4 thermometer will tell you.
Kurt You are getting to sound just like your good buddy Jerry.[:-bigeyes] And I'm not going to ask you where I should put this 4 buck thermometer.[:-bulb]