The top of Mt. Washington just set a new United States record for coldest wind chill ever, breaking a previous record from Alaska: https://www.washingtonpost.com/weather/2023/02/04/mount-washington-wind-chill-record/ "Ever" in this case meaning "since meteorologists defined and started calculating wind chill," which was in the mid-20th century.
At about the same time, Boston (Logan Airport) had the coldest temperature since the 1950s. It's above freezing now, and I will probably leave the house today. #weather #winter #WindChill