Winter Weather in Union, South Dakota

Winter Weather December 13, 2025 · Union, South Dakota

What the National Weather Service wrote

Snowfall totaled 5.1 inches 2 miles west-northwest of Jefferson.

The wider storm

A clipper system brought a band of light to moderate snowfall across southeast South Dakota, northeast Nebraska, and northwest Iowa during the early morning through midday hours of December 13. With northerly winds as much as 15 to 30 mph, a strong arctic high-pressure area plunged through the Northern Plains through December 14 with dangerously cold conditions and wind chills as low as -20 degrees F to -35 degrees F.

Source: NOAA Storm Events Database, event 1307186. Narratives are written by the National Weather Service forecast office that issued the report.

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