what are the dates used to measure annual snowfall

Are you eager for the first snow of the flavor? Take you already waxed your skis? Are you dreaming of snow days or dreading shoveling your driveway?

We've researched National Weather Service xxx-yr boilerplate data to find the date by which the season's first measurable snow – divers every bit 0.1 inch or more than – typically occurs to compile the map above.

Keep in mind, these are averages of seasons that include early and tardily snowfalls. Whatsoever given season can produce the flavour's first snowfall either very early on or very late, depending on the weather pattern at the fourth dimension.

The tables below list average first dates, the primeval first flavor snow on tape, and boilerplate seasonal snowfall for a list of cities in each region of the U.S.

For more southern locations, such as Atlanta and Dallas, snow may non fall every season. Therefore, instead of mentioning an boilerplate first date of measurable snowfall, we specify an average timeframe during which yous can await the "best adventure" of measurable snow each year.

Month of the average first accumulating (0.1 inch or greater) snowfall of the season, according to xxx-yr average statistics.

(NOAA/NWS/NCEI)

Northeast

October is typically the month'south first snowfall in the mountains of northern New England, the Adirondacks, and the higher peaks of northwest Pennsylvania and the central Appalachians. Most of the rest of the interior Northeast joins in during Nov, while the I-95 corridor from Providence, Rhode Island, to Virginia typically waits until Dec to meet their first accumulating snowfall of the season.

	Avg. First Snow By...	Earliest Commencement Snowfall	Avg. Flavor Snow
Caribou	Oct. 23	Sep. 29, 1991	111.8 inches
Burlington	Nov. iv	Sep. 30, 1992	82.two inches
Syracuse	November. 5	Oct. 1, 1946	124.seven inches
Buffalo	Nov. five	Oct. vi, 1991	92.5 inches
Pittsburgh	November. 14	Oct. 18, 1992	41.4 inches
Albany	Nov. 16	Oct. 4, 1987	59.2 inches
Concord	November. 22	Oct. x, 1979	63.five inches
Charleston	Nov. 24	Oct. 19, 1972	36.two inches
Hartford	November. 28	Oct. 10, 1979	42.eight inches
Boston	Nov. 29	October. x, 1979	43.five inches
Baltimore	Dec. 14	Oct. 10, 1979	20.1 inches
New York	Dec. fourteen	Oct. 21, 1952	25.3 inches
Philadelphia	Dec. 17	Oct. 10, 1979	21.8 inches
Washington	Dec. eighteen	Oct. 10, 1979	15.four inches
Atlantic Urban center	Dec. 21	Nov. five, 1973	15.6 inches

Midwest

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

In November, much of the Ohio Valley, the residue 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 take to wait until Dec to encounter their first accumulating flakes.

	Avg. Commencement Snow By...	Earliest Outset Snow	Avg. Season Snow
Marquette	Oct. 13	Sep. xiii, 1923	203.6 inches
Rapid City	Oct. 16	Sep. 13, 1970	41.half-dozen inches
Int'50 Falls	Oct. xviii	Sep. 14, 1964	71.viii inches
Duluth	Oct. 21	Sep. 18, 1991	81.5 inches
Bismarck	Oct. 26	Sep. 12, 1903	50.1 inches
Sioux Falls	October. 31	Sep. 25, 1939	43.iv inches
Mpls./St. Paul	November. ii	Sep. 24, 1985	53.4 inches
Fargo	Nov. two	Sep. 25, 1912	49.five inches
Omaha	Nov. 10	Sep. 29, 1985	28.iv inches
Cleveland	November. 10	Oct. two, 2003	68.three inches
Des Moines	Nov. 10	Oct. 10, 2009	36.viii inches
Milwaukee	Nov. 13	Oct. 6, 1889	49.3 inches
Detroit	November. 15	October. 12, 2006	43.8 inches
Chicago	Nov. sixteen	October. 12, 2006	37.1 inches
Columbus	Nov. 20	October. x, 1906	27.one inches
Indianapolis	Nov. 23	October. 18, 1989	25.5 inches
Kansas Urban center	Nov. 27	Oct. 17, 1898	18.2 inches
Cincinnati	Nov. 28	Oct. xix, 1989	21.3 inches
St. Louis	Dec. 3	October. 20, 1916	17.7 inches
Wichita	Dec. 3	October. 22, 1996	15 inches
Louisville	December. viii	Oct. 19, 1989	13.iv inches

West

Snow can fall over the highest peaks of the Rockies even in belatedly summer. September snowfall is considered average in the Washington Cascades, the Bitterroots and highest peaks of Colorado.

Otherwise, Oct typically heralds the arrival of the flavor's starting time flakes in lower elevations of Montana, Wyoming, eastern Idaho, the Wasatch, Colorado'due south foothills and mountain valleys, and the mountains of northern New Mexico.

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

The threat of snow is non unremarkably a cistron in places like Seattle and Portland, Oregon, until late December.

	Avg. Kickoff Snow By...	Earliest First Snow	Avg. Flavor Snow
Fairbanks	Sep. 27	Aug. 29, 1922	64.2 inches
Great Falls	Oct. 2	Aug. 22, 1992	61.vi inches
Cheyenne	Oct. two	Sep. viii, 1929	60 inches
Crested Butte	Oct. 5	Sep. three, 1961	206.7 inches
Billings	Oct. 12	Sep. 7, 1962	55.6 inches
Anchorage	Oct. 15	Sep. 20, 1947	74.half-dozen inches
Denver	October. 16	Sep. 3, 1961	60.1 inches
Pocatello	Oct. 26	Sep. 16, 1965	43.9 inches
Tahoe Metropolis	Oct. 28	Sep. 11, 1952	179 inches
Juneau	Nov. 4	Oct. ii, 2000	84.7 inches
Salt Lake Metropolis	November. v	Sep. 17, 1965	56 inches
Flagstaff	Nov. 11	Sep. nineteen, 1965	96.4 inches
Spokane	Nov. xiii	Sep. 23, 1926	45.nine inches
Reno	Nov. 15	Sep. 29, 1982	xx.4 inches
Boise	Nov. xix	Oct. 10, 2008	18.viii inches
Large Bear, CA	Nov. 20	Sep. 19, 1989	65.3 inches
Albuquerque	November. 20	Oct. 12, 1986	x.3 inches
Amarillo	November. 24	Sep. 29, 1984	xix.3 inches
El Paso	December. x	Oct. 28, 1980	v.5 inches
Portland, OR	December. 23	Oct. 29, 1935	4 inches
Seattle	Dec. 26	Oct. 27, 1971	five.half dozen inches

South

Yes, parts of the Due south practise occasionally see snow, but non necessarily every year.

The Texas Panhandle and highest elevations of the southern Appalachians are exceptions. Yous can expect your first snow in November in those areas.

Valley locations of the southern Appalachians, parts of northern and Centre Tennessee, northern Arkansas, cardinal and eastern Oklahoma, equally well every bit much of West Texas north of Interstate ten will see their first dusting of snow sometime in December, if at all.

For more southern locations, such equally Atlanta and Dallas, instead of mentioning an boilerplate first date of measurable snowfall, we specify an average timeframe during which you tin wait the "best gamble" of measurable snow each yr, divers by the average outset and last dates of measurable snow. This is typically in January and February from the Carolinas to north Texas.

	Highest Chance of Snow	Avg. Flavor Snow
Norfolk	Jan. 17 - February. 22	4.7 inches
Raleigh	Jan. iv - Feb. xiv	5.9 inches
Charlotte	January. xviii - Feb. 7	4.two inches
Columbia	Jan. 26 - Feb. four	1.5 inches
Atlanta	January. 21 - Feb. viii	2.six inches
Birmingham	Jan. 29 - Feb. 9	1.6 inches
Knoxville	Jan. 3 - Feb. xviii	6.four inches
Nashville	Dec. xxx - February. 27	5 inches
Memphis	Jan. 12 - Feb. 9	3.vii inches
Fiddling Rock	January. 13 - Feb. viii	3.5 inches
Tulsa	Dec. xv - Feb. 22	ix.seven inches
Oklahoma City	Dec. xiii - Feb. 15	eight inches
Dallas	January. xiii - Feb. 9	1.seven inches

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Source: https://weather.com/storms/winter/news/first-snow-average-date

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