Wilmington, DE – Delaware will start December with a surge of colder air as an Arctic Blast moves into the Mid-Atlantic from Monday, Dec. 1 through Friday, Dec. 5, shifting the region into a Cold December pattern with falling temperatures and light snow chances.
According to the National Weather Service, early-week disturbances will bring a mix of rain and snow showers, primarily Monday night into Tuesday as colder air deepens behind a passing front. While accumulations should remain light, brief periods of flurries or wet snow may occur—especially across northern and inland sections of the state.
Temperatures are expected to fall into the mid to upper 20s, with teens possible in interior pockets. Gusty winds may drop wind chills even lower, adding to the winterlike feel settling in across the region.
NOAA’s 6–10 Day Temperature Outlook places Delaware in the below-normal temperature category for Dec. 1–5, consistent with the broader cold surge sweeping the Mid-Atlantic. Light snow or mixed precipitation may revisit the area mid-week as additional disturbances track nearby.
Forecasters say no major storm appears likely at this time, but residents should be prepared for intermittent flurries, colder temperatures, and pockets of slick travel, especially during morning and evening commutes.
