NORTHERN INDIANA PUBLIC SERVICE COMPANY
Daily Heating Degree Days Average All Weather Zones
Total Company
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Total
Day	2003	2003	2003	2003	2003	2003	2003	2003	2003	2003	2003	2003	2003
1	35	32	34	5	8	13	0	0	4	20	13	29
2	38	29	46	6	16	10	0	0	1	22	7	33
3	40	25	46	10	16	10	0	0	0	20	7	34
4	41	42	34	24	13	9	0	0	3	17	4	31
5	34	46	39	31	1	4	0	0	4	16	17	30
6	39	40	44	31	6	3	0	0	2	16	27	34
7	35	50	37	32	6	0	0	0	0	5	30	37
8	24	45	33	33	10	1	0	0	0	1	35	30
9	30	44	49	27	0	0	0	0	0	3	33	22
10	43	46	47	21	0	0	0	0	0	0	23	24
11	50	46	33	15	7	3	0	0	0	0	11	38
12	43	49	25	21	13	2	0	0	0	8	16	44
13	41	42	32	15	8	2	0	0	0	7	31	42
14	50	38	26	3	15	1	0	0	0	14	28	38
15	52	44	20	0	12	1	0	0	1	13	23	34
16	48	47	12	7	9	0	0	0	0	17	21	33
17	50	42	12	20	5	0	0	0	0	20	14	41
18	54	38	18	15	1	0	0	0	0	11	10	38
19	47	34	18	1	0	3	0	0	8	11	17	39
20	45	31	10	4	11	5	0	0	7	2	14	40
21	52	31	20	18	14	1	0	0	3	10	17	28
22	54	36	23	24	13	0	0	0	4	18	10	23
23	57	43	14	22	12	0	0	0	7	20	14	31
24	55	49	8	16	11	0	0	0	3	16	33	39
25	44	55	15	17	9	0	0	0	13	16	32	38
26	51	48	18	16	9	0	0	0	8	23	25	33
27	55	45	10	8	4	0	0	0	10	26	24	27
28	39	38	14	3	6	0	0	0	16	21	32	20
29	46	0	32	9	9	0	0	0	16	21	33	25
30	48	0	31	5	7	0	0	0	18	6	22	30
31	34	0	23	0	13	0	0	3	0	4	0	30
Total	1,374	1,155	823	459	264	68	0	3	128	404	623	1,015	6,316
Normal	1,276	1,057	832	481	204	31	3	10	93	373	712	1,107	6,179
Deviation
From Normal	98	98	(9)	(22)	60	37	(3)	(7)	35	31	(89)	(92)	137