Here's The Earliest Accumulating Snow In More Than 5 Dozen US Cities

Here Are The Winter Storm Names For 2024-25

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S​nowfall has coated parts of the mountain West and higher elevations in the East already this fall, but for some major U.S. cities, the record earliest snow has happened even earlier on the calendar.

Simple factors determine how early it snows in a given year. Northern geographic and higher-elevation locations are, of course, most favored for early snows. The deciding factor is how the weather pattern we see each fall shapes up and whether it's conducive to snowfall in a given region or not.

Map of earliest accumulating snow shows this pattern. Plotted below is the month when the earliest measurable snow was recorded for select cities across the Lower 48 states. The National Weather Service considers measurable snow an accumulation of 0.1 inches or more.

For some, the earliest snow on record is in September or even late August, while others haven't seen their record-earliest first flakes fly until November.

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September is when parts of the West and northern tier have seen their earliest accumulating snow. Many locations from the Rockies to the northern Plains, northern Great Lakes and northern New England have received their earliest measurable snow in the month. One outlier is Amarillo, Texas, which had its earliest first accumulation on the next to last day of the month in 1984.

Although it's not shown, Great Falls, Montana, once received measurable snow as early as Aug. 22, 1992. And it wasn't just a dusting – it was an 8-inch snowstorm.

October is when many cities from the Midwest to the Northeast have received their earliest accumulating snow. M​uch of the Northeast's Interstate 95 corridor from Boston to Washington, D.C., saw its earliest first measurable snow on Oct. 10, 1979. The exception is New York City, where the record was set nearly 150 years ago on Oct. 15.

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November is when much of the South has had its earliest measurable snow on record. Many cities along the interstates 20 and 40 corridors have received accumulating snow as early as November.

Imagine kicking off the month with a coating of snow in Dallas-Fort Worth or a 3-inch blanket of snow in the South Carolina capital before Thanksgiving.

The average first accumulating snow typically arrives later in the season. Of course, all of the dates mentioned above are on the record-breaking early end of the spectrum.

By October, areas from the higher elevations of the West into the Northern Plains, northern Michigan and northern new England typically see the first measurable snow.

An even larger portion of the country experiences its first measurable snowfall by the end of November or early December, including from the Northeast into the Midwest and Southern Rockies.

The South doesn't see accumulating snow every year, but on average, January and February are the most favored months for at least a coating of snow.

Chris Dolce has been a senior meteorologist with weather.com for over 10 years after beginning his career with The Weather Channel in the early 2000s.