It isn't a norm. It does get cold here and there. It used to freeze here two or three times a year, but lately there are records, more days freezing, etc.
At that time you northerners were having record warmth, which is typical as of late.We seem to get opposite weather conditions. In 1996 a thing called the Siberian Express came blowing through here. This was similar. It is unusual for the National Weather Service to screw up so much, so many days in a row.
The Springs are in a river valley that goes sort of NorthEast to SouthWest. That may account for the prevailing winds. Maybe it is more windy there.
Jbee