Isabela Rainfall

At Isabela in Puerto Rico, for a period of record spanning 1971 – 2014
average annual rainfall sum = 1597.4 mm
wettest year on record = 2108.1 mm of rainfall in 2005
driest year on record = 1130.9 mm of rainfall in 1973

wettest month on average = 197.1 mm of rainfall in May
wettest month on record = 498.6 mm of rainfall in May 1982
peak of wet season = Aug. to Oct. on average with an average of 499.8 mm of rainfall
wettest 3-month period on record = 845.6 mm of rainfall in Aug. to Oct. 1984

driest month on average = 69 mm of rainfall in February
driest month on record = 2.8 mm of rainfall in January 1983
peak of dry season on average = Jan. to Mar. with 242.8 mm of rainfall
driest 3-month period on record = 26.4 mm of rainfall in Jan. to Mar. 1983

Below are links to charts of Monthly and Seasonal rainfall values. Click on each of the thumbnail images to see the respective full image.