Geospatial Analysis of Extreme Weather Events in Nigeria (1985–2015) Using Self-Organizing Maps

Table 3

Summary statistics of the precipitation indices for the period 1985–2015.

Variable	R×5d (mm)	R×1d (mm)	R1 (days)	SDII (mm/day)
Minimum	19.1	8.1	23	3.4
Median	88.5	40.5	108	10.2
Maximum	502	271.2	244	29.1
Mean	96	44.4	110	10.6
Standard deviation	35.8	17.23	35.7	2.4
Skewness	1.96	2.06	0.46	1.03
Kurtosis	6.7	7.43	0.07	2.52