Winter Storm Warnings in Boulder, Colorado
Boulder sits at the foot of the Front Range, where cold air funneling out of the Rockies can collide with moisture-laden upslope flow to produce surprisingly heavy snowfall for a city at roughly 5,400 feet. Across the 13 seasons analyzed from 2012 through 2024, Boulder averaged 57.1 inches (145.0 cm) of snowfall per year — a figure that underscores just how snow-prone the area is compared to most of the country.
The snowiest stretch of the calendar runs through March, April, and February, in that order. Spring storms here are a real phenomenon; Boulder regularly sees its biggest accumulations after winter has officially ended elsewhere. On average, the city experiences roughly 0.8 heavy-snow days per year, meaning significant multi-inch events are not guaranteed every season but arrive often enough to demand preparation. Average winter overnight lows dip to around 16.6 °F (−8.6 °C), cold enough for snow to remain dry and wind-driven when storms do strike.
A Winter Storm Warning from the National Weather Service signals that dangerous winter conditions are imminent or already occurring. For Boulder and Boulder County, forecasters weigh snowfall rates, total accumulation, and wind before issuing a warning — but the exact thresholds differ by region and elevation across the country. When a warning is posted here, residents should expect travel disruption, potential power outages, and conditions that can deteriorate quickly as upslope flow intensifies.
| Years analyzed | 13 winters (2012–2024) |
|---|---|
| Avg. annual snowfall | 57.1 in (145 cm) |
| Snowiest months | March, April, February |
| Avg. winter overnight low | 16.6°F (−8.6°C) |
| Heavy-snow days per year | 0.8 |
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 Boulder 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.
Boulder winter storm FAQ
Is there a winter storm warning in Boulder 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 Boulder, Colorado. It checks live forecast and alert data automatically and refreshes every time the page loads.
Does Boulder get winter storm warnings often?
Boulder 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 Boulder?
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 Boulder?
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 Colorado authorities and the National Weather Service (NWS).
Winter storm warnings in nearby locations
- Winter storm warning in Denver, CO
- Winter storm warning in Fort Collins, CO
- Winter storm warning in Cheyenne, WY
- Winter storm warning in Colorado Springs, CO
- Winter storm warning in Laramie, WY
- Winter storm warning in Aspen, CO
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.