What if "there's winter in Spring"? Answer in "Weather Folklore"

from www.almanac.com [ Old Farmer's Almanac online ]

Daffodils That come before the swallow dares, and take The winds of March with beauty. -- William Shakespeare

A peck of March dust and a shower in May, Makes the corn green and the fields gay.

The March Sun raises but dissolves not.

(Meaning that March's Sun won't melt the snow or frost.)

If there's spring in winter and winter in spring, The year won't be good for anything.

If birds of passage arrive early from the north, expect a frost.