Regina Rainfall At Regina in French Guiana, for a period of record spanning 1971 – 2014 average annual rainfall sum = 4240.8 mm wettest year on record = 5767.1 mm of rainfall in 1990 driest year on record = 2951.8 mm of rainfall in 1998 wettest month on average = 658.5 mm of rainfall in May … Continue reading Regina Rainfall