I'm currently working in Resolute Bay, Nunavut Territory, in Canada's Arctic Islands. We are the second most northern community in Canada, about 74'42" north on Cornwallis Island. Last weekend (March 17) when I flew my Mavic Pro (with platinum blades) we were the coldest spot in Canada. The wind had stopped so the daytime temp at flight time was -26 Celsius, about -15 Fahrenheit. I learned a few things about flying in cold weather. I use my iPhone on the controller. I started with fingerless gloves so I could use the touch screen. After about 5 minutes my fingertips froze so wouldn't work on the screen anyway. After thawing my fingers in the truck I wore my seal fur mitts taking one off to touch screen and then mitt back on. Using the control sticks and buttons on the controller with mitts is also a challenge. Stick control is fine, but button activation means take the mitt off. I've ordered electric heated glove liners with touch screen operable fingertips for future flights. Since Resolute is 2 days travel by air from my home base down south I calibrated IMU before going outside, and calibrated compass at flight location. We are close to the north magnetic pole but the compass did calibrate. Next question was how many GPS satellites could I pick up this far north. No problem, never had less than ten and as many as 17 at one point. My takeoff/landing area was frozen hard packed snow so I used a multi coloured quilt as a landing pad for contrast. The first flight had a strong shimmy in flight, hovering at about 6' AGL. I landed and ran the motors until they warmed up and the shimmy stopped. Flight control had delays in reaction from control inputs and video link also had image delays. The first flight ended with frozen fingertips after 4 minutes. The second flight lasted over 8 minutes until the iPhone screen went black (frozen). Since I had the drone in view at all times return flight was controlled and landed without problem. The iPhone blackout occurred with 50% drone battery left, 80% controller battery left and 85% iPhone battery left. So the weak link in the system is the iPhone. I have electric hand warmers for the iPhone for next test flights. Just waiting for my electric glove liners to arrive and the wind to stop.