Global Soil Moisture and Anomalies:

Data Source: NOAA CPC Gridded Soil Moisture Data

Truncated Data Length: Last 14 months

Sample Plot Script (also the executable command): plot_soilw.sh 

Makes call to grads scripts:
monthly soil moisture and Anomalies

Note: The grads scripts can be modified to plot 14 past monthly SST and Anomalie or 12 past seasons (3monthly).