The reason I ask (and yes Atomic I was serious - tho I could not help the pun
) is that it would make a big difference. If you are hot smoking it would simply be a case of adjusting the heat of the coals to maintain the desired temperature. With cold smoking though there is potentially a real problem depending on where the smoker is located. As it happens, today I was logging the internal temperature of my smoker and for most of the day it was in the shade. At about 3 pm though the sun was in a position where it shone directly on the smoker itself
For most of the day, whilst the smoker was in the shade, the IT was only about 2-3 Deg F hotter than outside. However as soon as the sun was able to shine directly on it the IT increased to 10 Deg F above the outside temperature. This logging was purely to see the effect of the sun and there was no fire and no smoke generator present.
Now this was a reflective stainless steel smoker on a relatively average UK spring day. If this was a black smoker in midsummer on a hot day (e.g. in Phoenix) then the IT temperature differential is likely to get a great deal larger. Then the safety of the food when "cold" smoking would need to be the prime consideration.