Louboutin likes to conceive summer collections in warm locales, and winter collections in cold ones.

NEWYORKER: Sole Mate

Not every spring day is going to be warm, and not every winter's day cold.

NPR: Not All Seasons Are Created Equal

Ideally, bats need a warm spring followed by a summer without heavy rain and high winds and a steady cold winter so they remain in hibernation.

BBC: NEWS | UK | Scotland | Highlands and Islands | Baby bats hit by cold, wet summer