This may be a stupid question. But how on earth does the majority of the United states and north Mexico, the UK and pretty much all of North West Europe manage to be below or well below average in terms of temperatures, when everywhere around the said locations is show positive values? more especially areas north/North West/North East of the mentioned? where is the cold coming from?
Presumably it is just because it's a long range average?
Then again, I guess Canada, and north of us as well as Russia, warmer overall is still Cold in winter. I'll have another cup of coffee before I post in the morning next time it think