Winter Storm Warnings in Green Bay, Wisconsin
Green Bay sits in northeastern Wisconsin, where cold air funneling off Lake Michigan and the broader Great Lakes region makes for a reliably snowy winter season. Analyzing 13 years of data from 2012 through 2024, the city averages 39.5 inches (100.4 cm) of snowfall per year — enough to keep residents well acquainted with shovels and salt spreaders. The bulk of that snow arrives during December, February, and January, in that order, meaning the heart of winter stays active well past the new year.
Days with genuinely heavy snowfall are relatively uncommon here — the historical average works out to roughly one significant heavy-snow event every two years. Even so, when those events do arrive, they carry real impact on travel and infrastructure across the region.
A winter storm warning issued for Green Bay signals that hazardous conditions are imminent or already occurring — typically a combination of heavy snow accumulation, blowing snow, and dangerously cold temperatures. Average winter overnight lows hover around 14.9°F (−9.5°C), which means any significant snowfall can quickly become a serious safety concern. It's worth noting that warning thresholds differ by region; the National Weather Service office serving your area sets the specific accumulation criteria that trigger a warning, so those cutoffs may not match what applies elsewhere in the country.
| Years analyzed | 13 winters (2012–2024) |
|---|---|
| Avg. annual snowfall | 39.5 in (100.4 cm) |
| Snowiest months | December, February, January |
| Avg. winter overnight low | 14.9°F (−9.5°C) |
| Heavy-snow days per year | 0.5 |
Climatology figures are approximate estimates for the period shown and may differ from official local records.
Watch vs warning: a winter storm watch means a major storm is possible in Green Bay within 12–48 hours (be prepared); a winter storm warning means it is happening or about to (take action now). For full definitions, see the complete winter storm warning guide.
Green Bay winter storm FAQ
Is there a winter storm warning in Green Bay right now?
The live status at the top of this page shows whether a winter storm warning, watch, or advisory is currently in effect for Green Bay, Wisconsin. It checks live forecast and alert data automatically and refreshes every time the page loads.
Does Green Bay get winter storm warnings often?
Green Bay sees significant snowfall in most winters, and winter storm warnings are issued in a typical season. The frequency varies year to year with the track of major storm systems.
How much snow triggers a winter storm warning in Green Bay?
There is no single national trigger: warning criteria are set by each local National Weather Service office, ranging from a couple of inches of snow in areas where snow is rare up to 6 inches or more in snow-belt regions, and significant ice accumulation can warrant a warning on its own.
What should I do during a winter storm warning in Green Bay?
Avoid travel if possible, stay indoors and keep warm, prepare for power outages, keep an emergency kit, and check on elderly or vulnerable neighbours. Follow guidance from Wisconsin authorities and the National Weather Service (NWS).
Winter storm warnings in nearby locations
- Winter storm warning in Milwaukee, WI
- Winter storm warning in Madison, WI
- Winter storm warning in Marquette, MI
- Winter storm warning in Rockford, IL
- Winter storm warning in Chicago, IL
- Winter storm warning in Grand Rapids, MI
See all locations, read the latest winter weather news, or the full winter storm warning guide. Definitions follow the National Weather Service (NWS) criteria; thresholds vary by region.