Gliding Downhill From Summer To (Briefly) Early Spring. How Rare Is Mountain Snow In Late May?

It can snow this late in the season on New England's 
mountaintops. Photo is of eight inches of snow atop
Mount Washington, New Hampshire, June 11, 2023

 Tuesday was a classic summer day. Yes, it's still May but work with me here. Highs in the 80s, sunshine and a slight haze really made me think of July. 

Soon enough, we'll think it's March again.

The forecast hasn't changed much since yesterday. Today will be another sunny one, but slightly cooler with highs in the 70s to low 80s. 

We start to really feel the cool air tomorrow as highs only reach the 60s.  The cold air aloft will bring us a slight chance of light showers.  Friday will be cooler yet as the showers arrive in earnest in the afternoon. 

The core of the cold air - a bowling ball of frigidity from near the North Pole - will arrive in New England Friday night and early Saturday. Yes, it will be cold enough for snow in the mountains. Pretty high up, actually.  Probably at elevations of 4,000 feet and higher.

That means the tippy tops of Vermont's highest peaks could easily turn white. So too, the summits of New York's Adirondacks and New Hampshire's White Mountains. 

The rest of us will endure cold rain showers and temperatures hover in the low to mid 40s Saturday morning. 

HOW UNUSUAL?

Snow so late in the season is pretty unusual for this time of year. Except at places like the summit of Mount Washington, New Hampshire. I believe it has snowed every month of the year up there. 

Late May and June snows are in New England's history quite liberally. According to the Vermont Weather Book:

There is, of course, the famous Year Without a Summer in 1816. On June 7, snow covered the ground all day in Montpelier and drifts reached 20 inches deep in Danville. 

Even more remarkably, a bigger snowstorm hit Vermont on June 11, 1842. Irasburg reported 10 inches of sow and Bennington had four inches. 

In 1884, a large snowfall hit Vermont's mountains, with accumulating even in the valleys. Lunenburg had two inches of snow. 

There hasn't been anything as dramatic as those examples in modern times, but it does snow this time of year. The latest in the season snow flurry in Burlington on record hit on May 31, 1945. Don't worry, Burlington is safe from snow with this go around Friday night and Saturday. 

On May 24-25, 2013, snow fell at elevations as low as 750 above sea level in Vermont. Mount Mansfield received 13.2 inches of snow, its greatest snow fall for so late in the season. Whiteface Mountain, New York came in with a whopping 34 inches. 

I wish I could find information on the following but I can't. I seem to remember snow falling at elevations as low as 600 feet in the early 1990s. The Bolton 'Valley ski area got a couple inches, I believe. 

On June 10, 2023, Mount Washington, New Hampshire had over eight inches of snow, making it their snowiest June on record. It didn't get quite cold enough on Vermont peaks to snow that day.   The cold and snow hit on what was otherwise a very hot summer.

CAN'T STAY COLD

Even when the forces of nature say otherwise, it really can't stay cold, or at least not that cold, this time of year. 

Saturday should stay in the nippy 50s. But despite that cold air coming from Canada, highs should be in the 60s daily Sunday through Tuesday. That's cool for this time of year but still comfortable. It should warm up more later next week. Summer is definitely not canceled.