Field

CPC daily precipitation
CPC unified (gauge-based) precipitation
X axis: whole world in 720 0.50° steps, first point at 0.25° E, last point at 359.75° E
Y axis: regular grid with 360 0.50° steps, first point at 89.75° S, last point at 89.75° N

1-daily data available from 01Jan1979 to 31Dec2024 ( 16836 times)
Variable prcp (precipitation in grid boxes with observations) in mm/dy
Full metadata.

Get grid points, average area or generate subset

Mask:	no mask   add a mask to the list
Latitude:	°N - °N
Longitude:	°E - °E
Year range:	-
Boundaries:	halfway grid points interpolated
Make:	average max min set of grid points subset of the field
Demand at least:	% valid points in this region
Units:	convert to mm/day leave in mm/dy

Create a field with lower time resolution

First fill missing data:	ignore, climatology, trend, persistence.
Then apply:	-day running mean with direction backward centred forward
Then apply new time scale:	keep same time scale annual (Jul-Jun) annual (Jan-Dec) biannual seasonal monthly 10-daily 5-daily
New variable:	mean sd sum sum above sum below number min time of min max time of max first time last time of precipitation
Minimum:	% valid data
Threshold:	no cut less than greater than mm/dy percentile normal 1971-2000

Create a field with lower spatial resolution

Average over blocks of longitude and latitude grid cells

Please consider downloading this field from the authoritative site.
If you really want to get it here, CPC daily precipitation is available as a netcdf file (size 1798.1 MB).

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