Northeast

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When can you expect the season's first measurable snow?

We've plotted National Weather Service 30-year average dates of the season's first measurable snow, the earliest-in-season snow on record and average annual snowfall for dozens of cities on the interactive map above.

Click on a snowflake icon in the interactive map to see when you'll typically see the season's first measurable snow,climatologically speaking. You'll also see the record earliest measurable snow date and the season's average snowfall.

We have interactive maps for other regions of the U.S., including the,and, as well.

Keep in mind, these are averages of data that include early and late snowfalls. Any given season can produce the season's first snowfall either very early or very late.

October is typically the month's first snow in the mountains of northern New England, Adirondacks, and the higher peaks of northwest Pennsylvania and the central Appalachians. Most of the rest of the interior Northeast joins in during November, while the I-95 corridor from Providence, R.I. to Virginia typically waits until December to see their first plowable snowfall of the season.

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Midwest

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Click on a snowflake icon in the interactive map to see when you'll typically see the season's first measurable snow,climatologically speaking. You'll also see the record earliest measurable snow date and the season's average snowfall.

The season's first snow in the Midwest typically occurs in October along the northern tier of states, from northern Michigan to the northern to western Dakotas.

In November, states in much of the Ohio Valley, the rest of the Great Lakes, Corn Belt and western Kansas join the ranks.

Parts of eastern and southern Kansas, southern Missouri and the Lower Ohio Valley typically have to wait until December to see their first accumulating flakes.

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West

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Click on a snowflake icon in the interactive map to see when you'll typically see the season's first measurable snow,climatologically speaking. You'll also see the record earliest measurable snow date and the season's average snowfall.

Of course, snow can fall over the highest peaks of the Rockies even in late summer. September snow is considered average in the Washington Cascades, the Bitterroots and highest peaks of Colorado.

Otherwise, October typically heralds the arrival of the first flakes in lower elevations of Montana, Wyoming, eastern Idaho, the Wasatch, Colorado's foothills and mountain valleys, and the mountains of northern New Mexico.

November first snow is typical from the plains of southeast Colorado into the rest of northern New Mexico, northeast Arizona (Flagstaff), most of the Great Basin and interior Northwest.

The threat of snow is not usually a factor in places like Seattle and Portland, Ore., until late December.

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South

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Click on a snowflake icon in the interactive map to see when you'll typically see the season's first measurable snow,climatologically speaking. You'll also see the record earliest measurable snow date and the season's average snowfall.

Yes, parts of the South do occasionally see snow, but not necessarily every year.

In the Texas Panhandle and highest elevations of the southern Appalachians, you can expect your first snow in November.

Valley locations of the southern Appalachians, parts of northern and Middle Tennessee, northern Arkansas, central and eastern Oklahoma, as well as much of West Texas north of Interstate 10 will see their first dusting of snow sometime in December, if at all.

For more southern locations, such as Atlanta and Dallas, instead of mentioning an average first date of measurable snow, we specify an average timeframe during which you can expect the "best chance" of measurable snow each year, typically in January-February from the Carolinas to north Texas.

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