Seasonal Precipitation Anomaly (mm)
Click for options and more information

Select *Alternative Seasons* Below
NOTE: To view other seasons of the year (as well as other years) click on the map after it is displayed.

For Jan-Feb-Mar,  Apr-May-Jun,  Jul-Aug-Sep,  Oct-Nov-Dec click here
For Feb-Mar-Apr,  May-Jun-Jul,  Aug-Sep-Oct,  Nov-Dec-Jan  click here
Data: CAMS_OPI v0208 monthly precipitation anomaly on a 2.5 x 2.5 deg. lat/lon grid
Base Period for Climatology:  1979-2000
Data Source:  NCEP, Climate Prediction Center USA

Description:
The seasonal precipitation anomalies shown are based on satellite precipitation estimates over ocean areas and rain guage data over land regions.  The units are milimeters (mm).  Contours are drawn at +/- 25, 50, 100,200,...,1000.

"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.)