Winter is a wonderful, but sometimes challenging, season to visit Maine. In this article, we’ve assembled a little overview of what Maine’s winter climate and weather look like, followed by some practical tips on traveling around the state this time of year. Let’s get to it!
A Snapshot of Maine’s Winter Climatology
You might associate Maine in winter with cold and snow—and you wouldn’t necessarily be wrong! Certainly an average Maine winter is, generally speaking, indeed nippy and indeed snowy.
But Vacationland manifests more climatic diversity than you might think, as former state climatologist Gregory Zielinski notes in his (much-recommended) Conditions May Vary: A Guide to Maine’s Weather. In that book, he points out that the presence of four different U.S. Department of Agriculture plant hardiness zones—gardening-oriented schemes based on average minimum winter temperature—within Maine suggests how significantly winter’s punch varies across this big state that makes up almost half of New England’s total area.
Far southern and coastal Maine are the balmiest parts of the state. The tempering oceanic influence of the North Atlantic and Gulf of Maine keeps the seaboard cooler in summer and warmer in winter than points inland. Winters are increasingly severe the deeper into the interior you go, with the harshest expression being found in far northern Maine as well as in the western highlands. The coldest winter temperatures along the Maine coast rarely drop too far below 0 degrees, while in the far north and Appalachian high country, they may plunge to 30 or 40 below.
Snowfall is generally heaviest in the north and west, too, though (as we’ll shortly discuss) coastal storms—namely “nor’easters”—can dump hefty amounts in a short period of time along the seaboard.
Winter’s actually the driest season in Maine, with a state average of about 10 inches of precipitation. But the precipitation that falls, of course, can stick around awhile in the form of fallen snow. The far north of Maine (as Zielinski explains in Conditions May Vary) typically experiences its first measurable snowfall in the last week of October or so, while the coast may not record it until upwards of a month later. The last measurable snowfall of the season tends to land sometime in April, though it’s certainly not unheard of to have falls of the white stuff in May.
Major Winter Weather: Cold Fronts & Nor’easters
Major winter weather in Maine often comes in the form of a strong cold front marching across the state, potentially generating precipitation, stiff northwesterly winds, and frigid air behind it. Certainly some of the strongest and most impactful storms affecting the state are the legendary Nor’easters, extratropical cyclones—aka intense low-pressure disturbances with counter-clockwise-rotating circulation—named for the typical northeasterly direction of their winds.
Nor’easters typically brew up off the Southeastern or Mid-Atlantic seaboards, birthed by the clash of cold continental air masses from the North American interior and warmer oceanic air associated with balmy Gulf Stream waters. Anywhere you have such a sharp contrast in temperatures, you’ve got major energetic potential for a weather disturbance, including the strong lows that form the core of a Nor’easter.
These cyclonic storms then track northward, gaining strength and typically peaking in intensity off New England and Canada’s Maritime Provinces. Possessing abundant North Atlantic moisture and packing powerful northeasterly gales, Nor’easters can slam Maine’s coast with heavy snows, whipping gusts, and heaving surf, sometimes resulting in significant coastal flooding. The associated precipitation and windiness can extend well inland, with Nor’easters among the most significant snowmakers (and high-wind generators) of New England’s weather systems.
Because they’re fueled by that mashup of very cold continental and much warmer maritime air masses, Nor’easters are most common between fall and spring. A rough average of one to three such storms impact the Maine coast each winter.
Some Notable Maine Winter Storms & Other Weather Events
It’s no surprise, given what we’ve covered above, that some of the most significant winter storms to impact Maine have been those howling Nor’easters. That includes the infamous Blizzard of 1978, which brought decent snowfall but, more significantly, resulted in big-time coastal flooding, with seawater inundating several feet above the normal high-tide mark. (During that early February ’78 storm, Portland recorded tides of 14.17 feet—a record that held until January 13, 2024, when they reached 14.57 feet in the city.)
Another notable Nor’easter impacted Maine in February 2013, during which the town of Gorham received 35.5 inches of snow and the islet of Mount Desert Rock recorded a wind gust just shy of 90 miles per hour.
Other legendary snowstorms include the Great Blizzard of 1888—a mid-March Nor’easter that pummeled a huge swath of the East Coast—and the New Year’s Blizzard of 1962 (sometimes called the “Down East Blizzard”), which dumped 25.5 inches in Bangor over a one-day period and even more in some other locations.
You’ll see a couple of records from that 1962 storm on the following list of the top five 24-hour snowfall totals documented in Maine history (which’ll maybe be useful for your next trivia night!):
(1) 41.8 inches (Franklin County—Dec. 22, 2008)
(2) 40 inches (Penobscot County—December 30, 1962)
(3) 38 inches (Oxford County—March 13, 1939)
(4) 32 inches (Piscataquis County—December 31, 1962)
(5) 30 inches (Somerset County—February 26, 1969)
(6) 29.1 inches (Cumberland County—January 9, 2013)
(7) 28.6 inches (Aroostook County—March 14, 1984)
(8) [TIE] 28 inches (Androscoggin County—January 28, 2015)
(9) [TIE] 28 inches (Hancock County—February 1, 1998)
(10) 27 inches (York County—January 28, 2015)
Winter Travel Hazards in Maine
Winter precipitation can create sketchy travel conditions even if it’s not coming down in a strong storm. Snow limits visibility and can absolutely make roadways treacherous, but in many respects it’s easier to deal with than freezing rain, which creates an icy sheen upon hitting surfaces.
Ice storms, which occur when temperatures hover around freezing, are among the most disruptive and dangerous winter-weather events of all, making travel virtually impossible and downing trees and powerlines due to the crushing weight of accumulated glaze.
A particularly insidious winter travel hazard is the dreaded black ice. This phenomenon is clear, patchy ice that can be difficult or impossible to see on roadways. It forms when precipitation, snowmelt, or some other sheen of moisture on the road freezes as temperatures drop, which often happens overnight or in early morning, but may also occur during the day as a cold front moves through or major windchills set in. Black ice is also common on bridges and overpasses, as the road surface on such structures chills more quickly. Expect the potential for black ice whenever temperatures are around or below freezing, even if roads look entirely bare!
Travel Safety Tips for Wintertime Maine
Some tips for winterizing your Maine sightseeing and adventuring vehicle:
- It’s best to have actual winter/snow tires on your car when tooling around Maine this time of year. All-season tires are OK but can’t compare to snow tires in terms of performance. Regardless of what kind of tires you’ve got, make sure they’re properly inflated.
- Check your windshield wipers to ensure they’re in good condition and replace them if they’re not. And keep your washer fluid reservoir full.
- Keep an emergency kit in your vehicle, with essentials such as extra warm clothing and blankets, winter boots, a shovel, sand or kitty litter (for traction), a snowbrush/ice scraper, snacks and water, and jumper cables or a jump battery.
- Keep your gas tank near full in case you’re stranded and need to run your vehicle for heat.
- Make sure you brush and scrape off snow and ice from your vehicle, including your headlights. Snow left on top of your car or on the hood can slide forward and obstruct your windshield or lights; it could also fall off behind you and affect other drivers’ sightlines.
How about some of the nuts-and-bolts of winter driving in Maine? If a winter storm or major snow or freezing rain is expected, it’s best to stay off the roads altogether if you can avoid it. Pay close attention to weather forecasts and any weather/travel advisories issued by the National Weather Service, Maine Department of Transportation, and other authorities.
If you do need to travel during inclement weather, be mindful of the presence of plow trucks. The Maine Department of Transportation has a hardworking fleet of 400-odd snowplows that help keep thousands of miles of state roadways clear and safe. Maintain a safe distance behind these plow trucks. Avoid passing them unless it’s absolutely necessary; if you must pass, do so with extreme caution, cognizant of the plow operator’s significant blind spots, the likelihood of a billowing snow cloud flanking the truck, and the fact that snowplows may extend over the centerline of the road.
Slow down on wet, icy, or snowy roads. A good rule of thumb, as the Maine Transportation Safety Coalition notes, is to reduce your speed by five to 10 miles per hour on a wet road; slow to half-speed when driving on packed snow; and slow to a crawl on ice. As mentioned, stay aware of the fact that black ice may be present and essentially invisible even on clear-looking roads, especially at night or early in the morning and on shady stretches and bridges.
Maintain extra room between yourself and other vehicles when driving on snow or ice or when precipitation is falling. And be careful about pulling over to snow-covered road shoulders, as it’s easy to get bogged down in unexpectedly deep snow or a hidden ditch.
A Few Words About Snowmobile Safety
Many snowmobile accidents, including fatalities, occur every year, and a significant proportion of these involve snowmobiling on frozen waterbodies and waterways. It’s always safest to stay off frozen lakes, ponds, and rivers!
Remember that ice needs to be at least five inches and ideally thicker to support a snowmachine—and that’s for “new,” clear ice. White, or “snow,” ice is half as strong as new ice, requiring that the thickness guidelines be doubled. Visible cracks, leads, or other breaks and openings in the ice are warning signs; so is visibly flowing water at the edge, just below, or on top of ice.
Safe Travels on a Winter Visit to the Pine Tree State
The Maine winter is breathtaking to behold firsthand. Just practice caution and follow common-sense safety protocols when doing so!
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