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Published September 29, 2009, 08:07 AM

Frost? Grand Forks airport reported 29 degrees, NWS office in GF 33 degrees

UPDATED 8:52 A.M.
Did you scrape your vehicle windshield this morning? Many cold-sensitive plants are covered this morning in the Red River region, and the ones that aren't might have been at risk. There was frost advisory until 9 a.m. The temperature at the Grand Forks airport reached 29 degrees, while the reading in town at the National Weather Service office dipped to 33 degrees.

By: Herald and Forum Staff Reports, Grand Forks Herald

Many cold-sensitive plants are covered this morning in the Red River region, and the ones that aren't might have been at risk.

A frost advisory for the region ended at 9 this morning.

The temperature at the Grand Forks airport reached 29 degrees, while the reading in town at the National Weather Service office dipped to 33 degrees, according to the weather service.

Grand Forks had climbed to 37 degrees by 9 a.m.

The reading at Agassiz National Wildlife Refuge also reached 29 degrees this morning, the weather service said.

Hallock, Minn., reported 30 degrees shortly before 7 a.m.,, but was back up to 32 degrees an hour later. The next coldest spot was Wakish, Minn., at 32 degrees, before its temperature jumped an hour later to 36 degrees.

Fargo reached a low of 34 degrees, the weather service said.

Frost can form on or near the ground even if the reported temperature is above freezing, because the air temperature is measured at 6 feet above ground level, the weather service said.

Frost was widespread in the northern Red River Valley and spotty in the southern half around Fargo-Moorhead and Wahpeton-Breckenridge, said Vince Godon, meteorologist at the weather service in Grand Forks.

From 1971 to 2000, the average day for the first fall freeze was Sept. 27 in Fargo and Sept. 20 at the Grand Forks airport, according to the weather service.

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