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1901
Johan Egeberg Mellbye, who ran Grefsheim from 1889, took a keen interest in the weather. He had already measured the farm's rainfall for many years when in 1901 he became an observer for the Norwegian Meteorological Institute.
The family has kept up the readings ever since, at the same spot in the farmyard.
The old logbooks survive. The entry for 3 July 1936 reads: «another hot day with thunder, followed by 45.77 mm of rain».
More than a hundred years of rain, snow and changing weather have been written down at Grefsheim.
Source: Feature in connection with the book Værfolk by Hugo Lauritz Jenssen and Guri Dahl. The logbooks in Grefsheim's collection.