Winter Weather — Lyon, Iowa

2025-12-13 · Lyon, Iowa

Event narrative

Snowfall totaled 3.5 inches 1 mile north-northeast of Larchwood and 2.3 inches in Rock Rapids.

Wider weather episode

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_id 1307210. Narrative written by the NWS forecast office that issued the report.