For driedstick in Idaho. That is why we ask for locations to give us an idea about climate and altitude.
In your case, unfortunately, I am too ignorant of geography to know your altitude. Here is a guide, tho:
It is not always that we can recalibrate a thermometer, but rather that we can make mental adjustments or allowances?
I never trust one therm. I always double check with two.
Then again, there are times to go with knowledge and experience, but that is very difficult and even dangerous to try to teach to other people who might be reading the forum, so I won't go there.
Good luck and good smoking.