Mean Monthly and Annual Precipitation
Puerto Rico

Statistic: 30-year average total precipitation
Time period: 1963-1995
Time interval: monthly
Spatial format: grid
Data format: ARC/Info ASCII GRID

 Projection: Geographic
Spatial resolution: 7.5 arc-seconds (~225 meters)
Spatial Extent: Puerto Rico, Vieques, and Culebra
Units: Millimeters
Date created: November 2002
Methods: The PRISM modeling system and Gaussian filter resolution enhancement. See FGDC-compliant metadata for details.

Examples 
Mean annual precipitation, entire region
Mean annual precipitation, Luquillo Mountain Range
Features
  • Reviewed and approved by regional experts
  • Incorporates topographic effects on precipitation
  • Captures rain shadows in great detail
  • Accounts for the varying ability of terrain features to enhance precipitation
  • Consistent treatment and spatial quality control of station data
  • "Universal" geographic (latitude/longitude) projection allows conversion to any other coordinate system
  • High-resolution, 7.5-second (<250 m) grids
  • Data format allows for easy import into ESRI's GIS products, as well as MAPINFO and Intergraph's GeoMedia

Data used in analysis

  • 109 Stations
  • 108 National Weather Service stations
  • 1 University of Puerto Rico station
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