This is the time of year we expect our coldest temperatures and dipping below zero is nothing significant. However, start counting the hours spent at or below zero, and you'll soon realize the strength of this season's arctic blast.
To start, this latest stretch of at or below zero weather started at 6 a.m. Christmas morning in Sioux Falls and ended Wednesday at 10 a.m. That's 52 hours in a row, a rough stretch to say the least. The last time we spent that much time below zero was January 4-7, 2014. That outbreak featured 57 consecutive hours at or below zero.
In case you've noticed, we have another stretch of below zero weather in the 7-day forecast this weekend. It is very likely that both Saturday and Sunday will stay below zero all day. New Year's Day is also in jeopardy of staying below zero. That means it's possible we could have 72 to 84 hours below zero in Sioux Falls. The last time we had that much subzero weather was January 2004.
Just how cold it gets is another question, but most of us would agree the duration of the severe cold is important and takes a toll the longer it lasts.
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