Table 5.

Results achieved by ARIMAX and EEMD-ARIMAX using normalized data.

Region	City-Federative unit	ARIMAX			EEMD-ARIMAX
		ME	RMSE	MAE	ME	RMSE	MAE
North	Belém-PA (4,1,1)	3.496	88.611	64.383	0.823	55.300	40.659
	Boa Vista-RR (1,0,1)	7.276	228.034	115.729	−15.266	165.307	100.733
	Macapá-AP (2,1,3)	2.783	129.141	56.598	−0.702	79.429	39.340
	Manaus-AM (4,1,1)	0.796	18.994	12.861	0.005	12.406	8.771
	Palmas-TO (3,1,2)	1.301	49.561	35.493	1.416	35.471	26.719
	Porto Velho-RO (2,1,3)	−0.193	151.779	87.690	−0.024	131.221	19.299
	Rio Branco-AC (2,0,2)	0.287	44.530	29.891	−1.546	28.245	17.304
Northeast	Aracaju-SE (0,1,1)	2.672	103.176	65.999	−2.111	75.438	48.003
	Fortaleza-CE (1,0,1)	7.836	179.518	103.165	0.758	122.469	76.730
	João Pessoa-PB (0,1,4)	2.929	83.694	57.921	0.827	45.635	32.355
	Maceió-AL (0,1,5)	1.645	65.674	43.626	−1.429	42.589	29.490
	Natal-RN (0,1,3)	2.701	155.989	83.457	−12.897	130.216	72.329
	Recife-PE (0,1,5)	2.483	105.509	63.195	−4.679	80.054	50.157
	Salvador-BA (4,1,1)	3.053	195.621	121.726	−7.470	155.119	102.551
	São Luis-MA (0,1,4)	1.747	42.258	31.661	1.173	25.417	18.514
	Teresina-PI (3,1,2)	2.676	59.647	42.921	2.135	47.579	35.588
Midwest	Brasilia-DF (3,1,2)	4.041	135.460	87.941	−1.909	91.309	57.297
	Campo Grande-MS (3,1,2)	3.944	90.317	55.276	−0.974	62.449	40.751
	Cuiabá-MT (2,1,3)	1.410	54.245	37.052	−0.109	35.409	24.553
	Goiânia-GO (3,1,2)	3.249	136.126	88.814	−11.139	100.058	73.351
Southeast	Belo Horizonte-MG (3,1,2)	4.806	156.051	109.193	1.246	114.420	81.809
	Rio de Janeiro-RJ (0,1,5)	8.852	292.669	192.758	−22.889	230.824	159.742
	São Paulo-SP (0,1,5)	12.976	628.305	420.853	−57.823	497.835	314.477
	Vitória-ES (3,1,2)	1.569	56.394	41.890	3.439	44.391	32.097
South	Curitiba-PR (2,1,3)	2.342	99.194	61.001	−7.094	80.935	51.362
	Florianópolis-SC (0,1,3)	18.719	184.337	76.301	−8.676	144.855	68.046
	Porto Alegre-RS (0,1,1)	25.068	325.657	129.257	−2.233	272.542	150.659