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Fri, Jan. 24

Winter dry spell breaks after 39 days
Lack of rain or snow leaves northern Arizona behind

After a 39-day dry spell, snow finally dusts the streets of Williams Feb. 3. Ryan Williams/WGCN

After a 39-day dry spell, snow finally dusts the streets of Williams Feb. 3. Ryan Williams/WGCN

After one of the longest winter dry spells on record, northern Arizona received trace amounts of snowfall on Jan. 30 to end the streak.

The dry spell started on Dec. 22 and lasted 39 days, tying the record for the longest winter dry spell set with another 39-day streak starting Dec. 1, 1917.

"We have other times of the year that it's more common to go long stretches, but during the wintertime it's pretty unusual to go over a month without measurable precipitation," said Megan Schwitzer, a meteorologist with the National Weather Service in Bellemont.

A large ridge of high pressure positioned over the West Coast caused the dry spell.

"The ridge was strong enough that any system coming out of the Pacific couldn't really penetrate the ridge, just kind of ride up and over, and so it was just really a blocking mechanism," Schwitzer said.

Without a daily weather observer in Williams, the National Weather Service provided data from nearby Bellemont for this story. After receiving trace amounts of snow on Jan. 30 to end the dry spell, Bellemont received 0.2 of an inch of precipitation and 0.5 of an inch of snow on Jan. 31. On Feb. 1, Bellemont received 0.06 of an inch of precipitation and 0.7 of an inch of snow.

January also saw above average high temperatures, although the low temperatures were about average. The high temperatures in the region ranged from 5 to 8 degrees above normal for the monthly average maximum temperatures.

"When we have such dry conditions, it's really easy for the atmosphere to radiate heat at night, and so when we see the largest temperature swings from low temperature to high temperature, it's during really dry weather," Schwitzer said.

As of press time, snowfall to date for the season in Flagstaff was at 31.6 inches, compared to 53.9 inches for a normal season to date.

"Had it been a normal January we probably would have been okay, but having nothing puts us quite behind," Schwitzer said.

Based on data from other dry spell years, Schwitzer said the lack of precipitation did not necessarily predict a pattern for the rest of the season.

"It really wasn't an indication as to what the following months would look like," she said. "A few good storms could help us get closer to normal and it maybe won't have as much of an impact on fire season and things like that."

As of press time, forecasters predicted a 60-70 percent chance of snow for Friday.

Updated forecast information is available at

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