Grand Forks tied a low minimum temperature this morning at its National Weather Service office in Grand Forks on UND's campus.
The temperature reached 31 degrees, tying the record low temperature for May 26 previously reached in 1961, 1984 and 1993.
At 4:30 a.m. today, it was freezing at the Grand Forks International Airport, three miles west of the city. It dipped to 30 degrees shortly before 6 a.m. before climbing to 35 an hour later, according to the National Weather Service.
The lowest temperature recorded in the region was 26 degrees near Lankin, N.D., near Park River in Walsh County.
The temperature reached down to 30 degrees at the airport in Hallock in the northwesternmost corner of Minnesota at 4:30 a.m., according to the National Weather Service. Hallock remained at 30 degreee until about 6:15 a.m., climbed to 32 degrees in the next 15 minutes, then to 34 degrees shortly before 7 a.m.
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Grand Forks and Hallock appeared to be the coldest spots in the region, based on the weather service's reporting sites.
Wednesday afternoon the weather service issued a freeze warning for most of northeast North Dakota and northern Minnesota, effective from 3 a.m. to 8 a.m. today.
By 2:53 a.m., it was 34 degrees at the airport and at reporting site in town at UND. Points around Grand Forks were warmer, including Langdon,N.D. and Roseau, Minn., and Hallock, Minn., at 36 degrees both at 3 a.m. By 4 a.m., Hallock was pegged at 32 degrees and it dropped to 30 within about 30 minutes.
Bemidji, meanwhile, was a balmy 37 degrees and Fargo was 38 at 4:30 a.m.
The temperature could fall below 30 degrees at some sites in the northern Red River Valley extended, for long enough to damage or even kill some sensitive plants, the weather service said.
Check the Herald's website for updates on the expected freeze.
