The authors show that a lack of such weather systems can thus favor more persistent heat and drought events in summer, and cold spells in winter. (sciencedaily.com)
In cold climates you'd want to charge it a few times every winter to make sure it is fully charged during cold spells. (mechanics.stackexchange.com)
I can remember those days when we'd have an extra cold spell with the temps staying below zero for a time. (whiteonricecouple.com)