Analysis of Climate Variability and Trends for Climate-Resilient Maize Farming System in Major Agroecology Zones of Ethiopia

Table 3

Rainfall anomaly index of 10-point data at each agroecology zones and number of years (1987–2018).

Agro.eo. zones	RAI range	RAI class
		RAI average value	Extreme wet	Very wet	Moderately wet	Slightly wet	Near normal	Slightly dry	Modernly dry	Very dry	Extremely dry
			≥3.00	2.00 to 2.99	1.00 to 1.99	0.5 to 0.99	0.49 to −0.49	−0.5 to −0.99	−1.00 to −1.99	−2.00 to −2.99	≤ −3.00
LPZ	−5.57 to 4.71	−3.215	5	3	3	3	4	1	4	5	4
MPZ	−4.83 to 5.21	−2.225	3	5	3	5	5	1	5	0	5
HPZ	−4.47 to 5.99	−1.475	5	0	3	3	7	3	3	5	3

Agro.eo. = Agroecology, LPZ = low productive agroecology zone, HPZ = high productive agroecology zone, MPZ = medium maize productive agroecology zone, RAI = rainfall anomaly index.