So cool its not cool?

Among a small shower of rain-related names, this pure version can have a cool, refreshing image.

Most of the notable Rivers have been male, but this nature name certainly flows as well for a girl. The name River is still rising for both genders, with about 3500 baby boys receiving the name last year vs. 1900 baby girls.

Sebastian is an ancient martyr's name turned literary, and Little Mermaid hero—think Sebastian the Crab—that's more popular than ever, as a classic-yet-unconventional compatriot for fellow British favorites T Theodore and Oliver.

Vienna is one of the more popular of the European place-names, with a particularly pleasant sound, evoking elegant images of the Blue Danube, of castles and cafes, sweets and sausages and Strauss waltzes—and Sigmund Freud. It could be a possible substitute for the popular Sienna.

This is a classic Italian name for boys, but despite the success of Luca and Matteo, has yet to catch on in the US. Vincenzo has made the charts in the US in only a couple years throughout the 20th century, but has been consistently on the charts since 2000. As Enzo becomes one of the hottest boys names in recent years, the elaborated Vincenzo may follow suit.

Fresher, brisker and, yes, cooler than Summer or Autumn or Spring, Winter is now a full-fledged female choice, especially since Nicole Richie and Joel Madden used it for daughter Harlow's middle name, and Gretchen Mol picked it as her daughter's first, as did media mogul Sean Parker. Winter continues to be the preferred spelling and has risen in popularity significantly over the past few years.