Completely wrong Neil. Here in Reykjavík it hardly ever goes that far below 0°C. Average temps here in January and February are 0 to -2. I dont remember it getting below -13°C here and that low temperatures are far below the average. A branch of The Golf Stream runs around Iceland, so our winters are not so cold at all, although it usually is colder on the north and north/east coast, and also in the highlands. Now it is +6°C here.
I´m so happy for you and glad you found out what it was with your lens. I also hope that you are getting better. I feel spring in the air (just a wish)