Precipitation climatology from Xie-Arkin

This page presents a monthly mean climatology of precipitation estimates from Xie-Arkin averaged over 1979-98. It is based on rain gauges over land and satellite-based estimates over ocean. Substantial differences in magnitude from GPCP estimates can be found over Indonesia and a few other regions. The patterns however are very similar.

Mean precipitation Standard deviation of 20 monthly means Mean plus one standard deviation Mean minus one standard deviation
January January January January
February February February February
March March March March
April April April April
May May May May
June June June June
July July July July
August August August August
September September September September
October October October October
November November November November
December December December December