According to the Nissan Leaf website:
Nissan LEAF Electric Car | Nissan USA Official Site
Q:How does driving in cold weather effect[sic] the performance and battery life?
A:Cold weather does not directly affect driving range. Your driving habits and patterns and accessory use (including heat and a/c) all play a role in driving range.
Please note: I did not spell "affect" in the question above, I just cut and pasted. I notice a lot of the questions are grammatically incorrect
. Of course, there are three "ands" in the answer, and punctuation.....ah never mind