| NORTHERN INDIANA PUBLIC SERVICE COMPANY | |||||||||||||
| Daily Heating Degree Days HAMMOND Weather Zone | |||||||||||||
| ZONE 1 | |||||||||||||
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total | |
| Day | 1998 | 1998 | 1998 | 1998 | 1998 | 1998 | 1998 | 1998 | 1998 | 1998 | 1998 | 1998 | 1998 |
| 1 | 30 | 26 | 32 | 24 | 6 | 0 | 0 | 0 | 0 | 13 | 14 | 18 | |
| 2 | 18 | 29 | 31 | 20 | 11 | 6 | 0 | 0 | 0 | 12 | 21 | 9 | |
| 3 | 19 | 31 | 33 | 23 | 16 | 11 | 0 | 0 | 0 | 13 | 26 | 3 | |
| 4 | 19 | 33 | 31 | 26 | 5 | 9 | 0 | 0 | 0 | 6 | 28 | 3 | |
| 5 | 18 | 34 | 30 | 23 | 0 | 15 | 0 | 0 | 0 | 0 | 29 | 6 | |
| 6 | 21 | 32 | 30 | 12 | 0 | 11 | 0 | 0 | 0 | 1 | 29 | 17 | |
| 7 | 30 | 29 | 26 | 11 | 9 | 7 | 0 | 0 | 2 | 7 | 27 | 27 | |
| 8 | 33 | 32 | 30 | 18 | 11 | 2 | 0 | 0 | 6 | 14 | 27 | 28 | |
| 9 | 44 | 28 | 43 | 23 | 10 | 2 | 0 | 0 | 6 | 12 | 14 | 26 | |
| 10 | 51 | 26 | 45 | 20 | 11 | 0 | 0 | 0 | 0 | 8 | 19 | 30 | |
| 11 | 44 | 25 | 50 | 6 | 5 | 0 | 0 | 0 | 0 | 4 | 24 | 27 | |
| 12 | 47 | 31 | 46 | 1 | 0 | 0 | 0 | 0 | 0 | 8 | 21 | 27 | |
| 13 | 55 | 31 | 34 | 4 | 1 | 0 | 0 | 0 | 0 | 18 | 17 | 26 | |
| 14 | 43 | 29 | 38 | 8 | 0 | 0 | 0 | 0 | 0 | 12 | 15 | 24 | |
| 15 | 37 | 21 | 36 | 9 | 0 | 0 | 0 | 0 | 0 | 7 | 23 | 20 | |
| 16 | 39 | 23 | 32 | 25 | 0 | 0 | 0 | 0 | 0 | 0 | 16 | 29 | |
| 17 | 45 | 26 | 24 | 18 | 0 | 0 | 0 | 0 | 0 | 2 | 22 | 31 | |
| 18 | 43 | 29 | 18 | 13 | 0 | 0 | 0 | 0 | 0 | 18 | 15 | 21 | |
| 19 | 43 | 28 | 30 | 13 | 0 | 0 | 0 | 0 | 0 | 11 | 30 | 28 | |
| 20 | 39 | 29 | 31 | 9 | 0 | 0 | 0 | 0 | 0 | 12 | 36 | 31 | |
| 21 | 35 | 26 | 33 | 16 | 0 | 0 | 0 | 0 | 0 | 18 | 29 | 46 | |
| 22 | 35 | 23 | 27 | 15 | 4 | 0 | 0 | 0 | 10 | 18 | 14 | 57 | |
| 23 | 39 | 24 | 29 | 4 | 4 | 0 | 0 | 0 | 7 | 13 | 18 | 50 | |
| 24 | 38 | 21 | 22 | 5 | 3 | 0 | 0 | 0 | 5 | 8 | 16 | 46 | |
| 25 | 36 | 19 | 12 | 4 | 6 | 0 | 0 | 0 | 0 | 4 | 19 | 41 | |
| 26 | 32 | 12 | 0 | 13 | 0 | 0 | 0 | 0 | 0 | 0 | 16 | 38 | |
| 27 | 34 | 23 | 1 | 21 | 0 | 0 | 0 | 0 | 0 | 0 | 11 | 32 | |
| 28 | 30 | 23 | 7 | 15 | 0 | 0 | 0 | 0 | 0 | 13 | 7 | 32 | |
| 29 | 33 | 0 | 0 | 9 | 0 | 0 | 0 | 0 | 0 | 10 | 2 | 47 | |
| 30 | 34 | 0 | 1 | 8 | 0 | 0 | 0 | 0 | 3 | 6 | 18 | 56 | |
| 31 | 29 | 0 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 0 | 52 | |
| Total | 1,093 | 743 | 812 | 416 | 102 | 63 | 0 | 0 | 39 | 278 | 603 | 928 | 5,077 |
| Normal | 1,280 | 1,053 | 818 | 466 | 212 | 23 | 0 | 8 | 57 | 332 | 684 | 1,110 | 6,043 |
| Deviation | |||||||||||||
| From Normal | (187) | (310) | (6) | (50) | (110) | 40 | 0 | (8) | (18) | (54) | (81) | (182) | (966) |
| Zone 1= Hammond, Gary, Crown Point, Hobart, Monticello | |||||||||||||