Prediction of Precipitation in the Western Mountainous Regions of China Using a Statistical Model

Table 2

Predicted and observed summer rainfall anomaly (units: mm) and relative bias (units: 100%) of independent sample return test from 2009 to 2018.

Year	Observation	Prediction	Relative bias
2009	−51.3	−57.9	−1.3
2010	56.6	42.3	−2.8
2011	−49.2	−98.4	−9.5
2012	−75.3	−42.5	6.3
2013	−74	−58.2	3.1
2014	−100.6	−54.4	8.9
2015	−103	22.2	24.2
2016	23.5	156	25.6
2017	−27.8	5	6.3
2018	−101	−80.6	3.9