Category
page 1Winter phenomena
winter solstice
astronomical phenomenon that occurs in December in Northern Hemisphere and in June in Southern Hemisphere
winter storm
event in which the varieties of precipitation are formed that only occur at low temperatures
thaw
rise in temperature after freezing weather
vernalization
thumb|Many species of henbane require vernalization before flowering.

overwintering
thumb|Migration of cranes
Overwintering is the process by which some organisms pass through or wait out the winter season, or pass through that period of the year when "winter" conditions (cold or sub-zero temperatures, ice, snow, limited food supplies) make normal activity or even survival difficult or near impossible. In some cases "winter" is characterized not necessarily by cold but by dry conditions; passing through such periods could likewise be called overwintering.
winter rest
annual state for some plants and animals