Precipitation Frequency for Puerto Rico and the US Virgin Islands - NOAA Atlas 14 Volume 3

This GIS grid atlas contains precipitation frequency estimates for Puerto Rico and the U.S. Virgin Islands is based on precipitation data collected between 1/1899-12/2004. This atlas is an updated version of Technical Paper 42 Generalized Estimates of Probable Maximum Precipitation and Rainfall-Frequency Data for Puerto Rico and Virgin Islands and Technical Paper 53, Two-to-Ten-Day Precipitation for Return Periods of 2 to 100 Years in Puerto Rico and Virgin Islands (1965). The grids provide information for durations from 5 minutes through 60 days, and for recurrence intervals of 1 year through 1000 years. All grids are in geographic coordinate system (WGS72 horizontal datum) and units are in 1000th of inches.