Our British winters are infamous , we either get crystal clear skies and sharp frosts or deep low pressures bringing wind and rain but with relatively mild temperatures. Wind of course is always a factor in drone operations and we at SkyScene set an operating limit of approximately 10kts - about that , not only is there a safety implication but it becomes more difficult to frame shots.
Another consideration is temperature , the Lipo batteries that our drones use suffer in the cold weather. The flight time is reduced quite significantly , so to combat this situation we use battery heaters. Its takes just a few minutes for the batteries to be brought up to temperature thus increasing the flight time. Rain of course is a no no , delicate electronics and water have never got on well together.
So , in summary , unless its raining or particularly windy - we can fly!