Data Library
Global
Atm Circulation
Atm Temp
Bulletins
Climatologies
Forecasts
Ocean Temp
Overview
Precipitation
Climatologies
Prcp Frequency
Precip Change
Precip Fraction
Precip Loop
Select a Point
SST Loop
Temp Loop
Vector Winds
help@iri
Printable Page
Seasonal Fraction of Annual Precipitation
December-February
Click for options and more information
January-March
Click for options and more information
February-April
Click for options and more information
March-May
Click for options and more information
April-June
Click for options and more information
May-July
Click for options and more information
June-August
Click for options and more information
July-September
Click for options and more information
August-October
Click for options and more information
September-November
Click for options and more information
October-December
Click for options and more information
November-January
Click for options and more information
Data: CAMS_OPI monthly climatological precipitation 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:
The plot indicates the percentage of annual precipitation that occurs during the indicated season. "Masked" areas in white indicate regions with less than 25 mm of precipitation during the 3-month season shown. Regions shaded in green indicate areas that receive more than 30% of their annual precipitation, while areas shaded in brown receive less than 20% of their annual rainfall during the indicated season. Light blue represents 20 to 30%. The contours are drawn at intervals of 10%.