Severe Thunderstorms in the Northern Plains and Upper Midwest; Critical Fire Weather in the West; Dangerous Heat in the Central and Eastern U.S.

Severe thunderstorms are likely today across the northern Plains and into the upper Mississippi Valley. Gusty winds and dry conditions will result in widespread critical fire weather through Saturday across parts of the Four Corners region and the Great Basin. A significant and dangerous heat wave will expand from the Central U.S. into the Eastern U.S this weekend through much of next week. Read More >

How often dO Locations across northern Arizona have snow for ChRISTMAS DAY?

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Most people think of white snowy scenes with snow gently falling from the sky when picturing the typical weather during Christmas. But how often does this occur in reality? Over the thirty year period from 1981 to 2010, Flagstaff has recorded at least 1 inch of snow on the ground on Christmas 65% of the time. Measurable snowfall only occurred on Christmas 17% of the time.

The table below shows the historical probability of snow on the ground on Christmas Day at many cities in the United States as compiled over the same thirty year period (1981-2010) using data from the National Centers for Environmental Information.

Location	Historical Probability of snow on the ground for Christmas Day
Phoenix, AZ	0%
Albuquerque, NM	3%
Prescott, AZ	4%
Washington, DC	7%
New York City, NY	8%
Reno, NV	14%
Boise, ID	37%
Chicago, IL	43%
Great Falls, MT	43%
Portland, ME	53%
Flagstaff, AZ	67%
Lander, WY	65%
Salt Lake City, UT	67%
Denver, CO	68%
Madison, WI	77%
Minneapolis, MN	80%
Bismarck, ND	80%
Grand Canyon North Rim	92%
Marquette, MI	94%
Duluth, MN	97%
Blue Canyon, CA	100%
Barrow, AK	100%

What AbOUT OTHER holidays IN Flagstaff?

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When tabulated over the last seventy years the historical probability of snowfall being on the ground at Christmas is around 56% for Flagstaff. The probability of measurable snowfall on Christmas Day is still only 17%. What about on other holidays?

Holiday	Historical Probability of 1" or more snow on the ground	Historical Probability of snowfall occurring	Most amount of snow on the ground	Year
Christmas Day	56%	17%	44 inches	1967
New Years Day	61%	16%	28 inches	1968
Valentine's Day	60%	26%	22 inches	2010
St. Patrick's Day	25%	19%	29 inches	1973
April Fool's Day	17%	24%	31 inches	1973

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Severe Thunderstorms in the Northern Plains and Upper Midwest; Critical Fire Weather in the West; Dangerous Heat in the Central and Eastern U.S.

Holiday Snow in Northern Arizona