SUMMER (Dec. 21st - March 20th)           
Mild cold weather during the day; very cold nights.

FALL (March 21st - June 20th)
Very cold weather during the day, and harsh cold nights (Minimum average temperatures below 0ºC).

WINTER (June 21st - Sept. 20th)
Harsh cold weather during the day, with very intense harsh cold weather at nights (minimum average temperatures below 0ºC).

SPRING (Sept. 21st - Dec. 20th)
Mild cold weather during the day; very cold nights.