Folklore tells us that the wooly bear caterpillar (the larva of the Isabella tiger moth or Pyrrharctia Isabella) can predict how harsh a winter is in store. If the brown band in the middle is large, it will be a mild winter; if narrow, a severe one. Severe winters are also forecasted by:
- an abundance of acorns
- very dense feathers on chickens or thick coats on raccoons
- Very thick skins on onions or corn husks
- Crickets in the chimney or on the hearth
- Frequent halos around the sun or the moon.