If you're into astrophotography, do NOT ever, EVER move to NE Ohio. Besides the semi-permanent lake-effect clouds in wintertime, there's also this issue--when you DO get a clear winter night here in NE Ohio, it's typically very, very cold. It requires a strong arctic high pressure system to typically scour and dry out all layers of the atmosphere. Our nighttime lows in winter are typically 15 - 20°F, but the typical CLEAR winter's night is often colder than that.
That being said...suppose it's clear and cold. Let's say 10°F (-12°C) or colder.
First issue is the battery on the camera dying quickly. Do you (a) bring along a spare battery, (b) failing that, keep the battery in your pocket until the very last minute when it's time to image? Also, © if you elect to go with (b), will the relative warmth of the battery skew the temperature matching for the dark frames?
...which brings about the second question...
...do you need dark frames at these temperatures for a Canon T6?