Things associated with winter with U
- Under the weather
 - ugly sweater
 - undergarments
 - Under the tree
 - Undercoat
 - undershirt
 - Under the snow
 - Uniform
 - Under the covers
 - Under garments
 - Under clothes
 - underclothes
 - Ugly Christmas sweater
 - Urn
 - under snow
 - Underground
 - Ugliness
 - Upset
 - Upper
 - unicycle
 - Unhappiness
 - Undies
 - Underwear thermal
 - Under the Christmas tree
 - under the blanket
 - Under shirt
 - underpants
 - Undergarment
 - Under covers
 - Under armour
 - Ukulele
 - Under wear
 - Uncomfortable
 - uncle
 - Umber
 - ulcers
 
The words in the list Things associated with winter with U come from players of the word game City, Country, River.