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On February 1, 2018, Florida-based researchers Martha A. Scholl, Maoya Bassiouni, and Angel J. Torres-Sánchez ______climate data from several sites in Puerto Rico's Luquillo Mountains. At 8:30 a.m., the air temperature was 16°C at site CC1, the site with the highest elevation, and it had shifted to 16.8°C by 11:00 p.m.