NORTHERN INDIANA PUBLIC SERVICE COMPANY
Daily Heating Degree Days VALPARAISO Weather Zone
ZONE 1
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Day	2006	2006	2006	2006	2006	2006	2006	2006	2006	2006	2006	2006	Total
1	23	26	26	22	9	1	0	0	2	0	33	41	183
2	23	26	33	13	7	0	0	0	1	0	38	42	183
3	23	28	37	26	0	2	0	0	1	0	32	50	199
4	26	38	38	20	7	0	0	0	1	9	21	46	206
5	33	40	33	19	14	0	0	0	2	17	17	35	210
6	36	39	36	11	16	0	0	0	0	17	14	39	208
7	30	38	25	25	6	0	0	0	0	11	14	54	203
8	27	41	14	31	0	0	0	0	0	7	11	44	175
9	31	37	17	20	0	7	0	0	1	6	16	32	167
10	27	35	20	8	4	9	0	0	6	9	20	23	161
11	28	36	8	0	21	6	0	0	1	24	27	21	172
12	16	41	10	3	22	6	0	0	0	29	30	22	179
13	30	37	26	0	19	3	0	0	2	24	26	25	192
14	36	22	30	1	15	0	0	0	3	26	24	20	177
15	31	28	30	6	15	0	0	0	0	17	23	30	180
16	24	29	30	11	13	0	0	0	0	14	26	16	163
17	36	50	33	16	11	0	0	0	0	11	30	23	210
18	34	62	36	8	14	0	0	0	8	12	26	34	234
19	17	50	33	3	15	0	0	0	16	24	31	35	224
20	30	39	33	3	5	0	0	0	16	18	30	29	203
21	36	32	36	7	18	0	0	0	5	14	30	17	195
22	33	30	28	10	14	0	0	0	1	29	26	22	193
23	35	33	29	16	3	0	0	0	3	29	24	30	202
24	29	27	31	12	0	0	0	0	13	29	19	31	191
25	37	39	30	25	0	0	0	0	6	23	13	28	201
26	30	34	31	15	0	0	0	0	4	24	12	36	186
27	22	35	22	12	0	0	0	0	9	23	10	29	162
28	15	34	23	8	0	0	0	0	19	22	6	24	151
29	22		20	9	0	1	0	1	13	18	15	19	118
30	32		3	10	0	0	0	0	11	5	31	19	111
31	31		11		0		0	0		27		21	90
Total	883	1,006	812	370	248	35	0	1	144	518	675	937	5,629
Normal	1,259	1,036	831	489	201	42	1	7	113	389	710	1,097	6175
Deviation From Normal	(376)	(30)	(19)	(119)	47	(7)	(1)	(6)	31	129	(35)	(160)	(546)
Zone 1 = Hammond, Gary, Crown Point, Hobart, Valparaiso, Monticello