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	2009	2009	2009	2009	2009	2009	2009	2009	2009	2009	2009	2009	Total
1	37	38	49	19	15	4	5						167
2	43	47	50	17	10	7	0						174
3	32	49	39	28	7	12	0						167
4	41	58	25	24	7	8	1						164
5	44	52	8	28	8	0	0						140
6	37	27	13	31	4	0	0						112
7	47	22	23	27	2	0	0						121
8	50	33	23	22	3	0	2						133
9	40	19	25	17	17	5	0						123
10	41	12	21	26	14	0	0						114
11	45	25	40	28	14	5	0						157
12	41	33	44	19	5	0	0						142
13	59	35	34	26	3	3	0						160
14	60	39	26	25	6	0	0						156
15	78	39	17	21	7	0	0						162
16	66	37	15	16	15	0	0						149
17	46	28	5	9	16	2	3						109
18	50	39	19	3	7	0	2						120
19	48	49	35	16	0	0	4						152
20	45	43	29	22	0	0	0						139
21	39	44	19	25	0	0	0						127
22	34	46	16	19	0	0	0						115
23	44	44	17	4	0	0	0						109
24	61	32	7	0	3	0	0						103
25	58	25	20	7	1	0	0						111
26	51	23	19	0	0	0	0						93
27	47	42	30	5	0	0	0						124
28	50	40	26	17	9	0	0						142
29	47		32	11	8	0	0						98
30	56		20	4	3	2	0						85
31	35		21		0		0						56
Total	1,472	1,020	767	516	184	48	17	0	0	0	0	0	4,024
Normal	1,274	1,034	833	475	212	39	0						3867
Deviation From Normal	198	(14)	(66)	41	(28)	9	17	0	0	0	0	0	157
Zone 1 = Hammond, Gary, Crown Point, Hobart, Valparaiso, Monticello