Monthly Climatological Precipitation
Click for options and more information
Data: CAMS_OPI monthly precipitation climatology (mm/month) on a 2.5 x 2.5 deg. lat/lon grid
Base Period for Climatology:  1979-1995
Data Source:  NCEP, Climate Prediction Center USA

Description:
Monthly precipitation (mm/month)  based on satellite precipitation estimates over ocean areas and rain guage data over land regions.  Contours are drawn at 50 mm intervals. 

"CAMS" is an acronym for the "Climate Anomaly Monitoring System" in use at the Climate Prediction Center (CPC) at the US National Centers for Environmental Prediction (NCEP).  "OPI" stands for "Outgoing longwave radiation Precipitation Index" (the statellite precipitation estimates are based on emitted longwave radiation observed by polar-orbiting satellite.)