Winter Storm Warnings in Portland, Maine
Portland sits along the southern Maine coast where cold Atlantic air, nor'easters, and inland cold snaps combine to produce some of New England's most punishing winter weather. Analyzing thirteen years of data from 2012 through 2024, the city averages 54.3 inches (137.9 cm) of snowfall annually — a figure that underscores just how seriously residents need to take winter preparedness. The bulk of that snow tends to pile up during February, January, and December, when storm tracks are most favorable and temperatures stay consistently below freezing.
On average, Portland sees roughly 2.1 heavy-snow days per year, meaning events capable of significantly disrupting travel and daily life are a near-certainty each season rather than a rare surprise. Average winter overnight lows hover around 21°F (−6.1°C), cold enough that snow accumulates quickly and lingers for days.
A winter storm warning in Portland signals that hazardous snow, sleet, or mixed precipitation is imminent or already occurring at levels that pose serious danger to life and property. It's important to understand that warning thresholds are not universal — the National Weather Service sets them regionally, so the snowfall totals that trigger a warning here in coastal Maine may differ considerably from thresholds used in the Midwest, the South, or higher-elevation areas of New England.
| Years analyzed | 13 winters (2012–2024) |
|---|---|
| Avg. annual snowfall | 54.3 in (137.9 cm) |
| Snowiest months | February, January, December |
| Avg. winter overnight low | 21°F (−6.1°C) |
| Heavy-snow days per year | 2.1 |
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 Portland 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.
Portland winter storm FAQ
Is there a winter storm warning in Portland 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 Portland, Maine. It checks live forecast and alert data automatically and refreshes every time the page loads.
Does Portland get winter storm warnings often?
Portland 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 Portland?
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 Portland?
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 Maine authorities and the National Weather Service (NWS).
Winter storm warnings in nearby locations
- Winter storm warning in Augusta, ME
- Winter storm warning in Concord, NH
- Winter storm warning in Manchester, NH
- Winter storm warning in Nashua, NH
- Winter storm warning in Boston, MA
- Winter storm warning in Bangor, ME
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.