The manufacturer gives the operating temperature range for the Hawk Eye at 35-105-degrees F. However, many of our customers report using them at temperatures well below and above these ranges. One customer in Canada wrote "We have left our cameras out in our falcon boxes all winter. It has been -22 to -36 F. and the are still working."
The point to remember is that, as with any electronics, the more protection you can give the cameras the better. If not inside a sheltered birdhouse, a simple 6" square board, or plastic cup over the top to keep rain and snow off, is a must. Please see the "Weatherize your Hawk Eye," Q&A below for easy ways to protect against the weather.