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
Day	2005	2005	2005	2005	2005	2005	2005	2005	2005	2005	2005	2005	Total
1	27	45	44	20	21	0	1	0	0	0	20	40	218
2	23	44	45	23	24	0	0	0	0	0	9	44	212
3	29	39	41	20	26	0	0	0	1	0	4	40	200
4	31	35	30	6	16	0	0	0	0	0	6	46	170
5	40	26	30	1	11	0	0	0	0	0	4	53	165
6	42	24	14	3	2	0	0	0	0	11	21	54	171
7	38	27	28	19	3	0	0	0	0	15	13	58	201
8	36	35	44	14	0	0	0	0	0	20	6	46	201
9	32	38	44	8	0	0	0	0	0	11	18	49	200
10	32	41	36	1	0	0	0	0	0	9	27	38	184
11	30	34	36	8	9	0	0	0	0	9	17	40	183
12	10	28	44	20	16	0	0	0	0	6	5	43	172
13	37	23	42	16	2	0	0	0	0	4	21	40	185
14	50	26	35	15	13	0	0	0	1	4	21	34	199
15	48	27	36	13	16	3	0	0	2	12	19	36	212
16	56	37	29	3	15	2	0	0	8	17	41	45	253
17	59	44	31	2	5	5	0	0	2	8	43	49	248
18	46	44	22	0	1	2	0	0	0	7	32	55	209
19	39	31	27	0	8	0	0	0	0	14	24	59	202
20	47	30	33	11	6	0	0	0	0	18	25	45	215
21	49	32	30	15	3	0	0	0	0	16	26	46	217
22	56	36	27	24	1	0	0	2	0	19	35	31	231
23	54	35	34	31	8	0	0	2	1	21	30	28	244
24	40	36	24	26	9	0	0	0	0	21	48	30	234
25	30	34	31	12	7	0	0	0	0	22	39	30	205
26	48	37	29	19	4	0	0	0	6	22	23	32	220
27	57	32	24	20	5	0	2	0	3	22	13	25	203
28	45	35	21	17	7	0	0	0	4	25	16	27	197
29	41		7	18	3	0	0	0	15	20	36	32	172
30	44		4	22	4	0	0	0	7	10	40	30	161
31	43		23		0		0	0		13		32	111
Total	1,259	955	945	407	245	12	3	4	50	376	682	1,257	6,195
Normal	1,259	1,037	829	483	195	38	1	6	110	390	710	1097	6155
Deviation From Normal	0	(82)	116	(76)	50	(26)	2	(2)	(60)	(14)	(28)	160	40