Cold snap is used in two ways to describe climate:
- in meteorology, a period of intensely cold and dry weather, often occurring during an Ice Age
- an unseasonally cold period in spring. This may also be called a blackberry winter as it may coincide with the time when the blackberries bloom. It may also be called a dogwood winter. In Tennessee dogwood winter and blackberry winter are two separate occasions. Dogwood being first and blackberry a couple of weeks later.
- Cold wave