| NORTHERN INDIANA PUBLIC SERVICE COMPANY | |||||||||||||
| Daily Cooling Degree Days HAMMOND Weather Zone | |||||||||||||
| ZONE 1 | |||||||||||||
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total | |
| Day | 1997 | 1997 | 1997 | 1997 | 1997 | 1997 | 1997 | 1997 | 1997 | 1997 | 1997 | 1997 | 1997 |
| 1 | 0 | 0 | 0 | 0 | 0 | 0 | 20 | 13 | 13 | 0 | 0 | 0 | |
| 2 | 0 | 0 | 0 | 0 | 0 | 0 | 14 | 15 | 4 | 0 | 0 | 0 | |
| 3 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 13 | 0 | 11 | 0 | 0 | |
| 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 0 | 3 | 0 | 0 | |
| 5 | 0 | 0 | 0 | 0 | 0 | 2 | 4 | 0 | 1 | 10 | 0 | 0 | |
| 6 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 3 | 10 | 9 | 0 | 0 | |
| 7 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 5 | 5 | 11 | 0 | 0 | |
| 8 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 10 | 4 | 10 | 0 | 0 | |
| 9 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 1 | 0 | 0 | 0 | |
| 10 | 0 | 0 | 0 | 0 | 0 | 4 | 2 | 7 | 0 | 0 | 0 | 0 | |
| 11 | 0 | 0 | 0 | 0 | 0 | 5 | 9 | 0 | 0 | 1 | 0 | 0 | |
| 12 | 0 | 0 | 0 | 0 | 0 | 4 | 15 | 7 | 0 | 4 | 0 | 0 | |
| 13 | 0 | 0 | 0 | 0 | 0 | 5 | 21 | 1 | 4 | 0 | 0 | 0 | |
| 14 | 0 | 0 | 0 | 0 | 0 | 0 | 15 | 6 | 5 | 0 | 0 | 0 | |
| 15 | 0 | 0 | 0 | 0 | 0 | 7 | 16 | 13 | 10 | 0 | 0 | 0 | |
| 16 | 0 | 0 | 0 | 0 | 0 | 2 | 20 | 13 | 12 | 0 | 0 | 0 | |
| 17 | 0 | 0 | 0 | 0 | 0 | 0 | 18 | 5 | 5 | 0 | 0 | 0 | |
| 18 | 0 | 0 | 0 | 0 | 3 | 4 | 14 | 0 | 9 | 0 | 0 | 0 | |
| 19 | 0 | 0 | 0 | 0 | 0 | 16 | 10 | 3 | 8 | 0 | 0 | 0 | |
| 20 | 0 | 0 | 0 | 0 | 0 | 14 | 14 | 1 | 0 | 0 | 0 | 0 | |
| 21 | 0 | 0 | 0 | 0 | 0 | 10 | 9 | 0 | 0 | 0 | 0 | 0 | |
| 22 | 0 | 0 | 0 | 0 | 0 | 16 | 4 | 0 | 0 | 0 | 0 | 0 | |
| 23 | 0 | 0 | 0 | 0 | 0 | 19 | 5 | 4 | 0 | 0 | 0 | 0 | |
| 24 | 0 | 0 | 0 | 0 | 0 | 18 | 9 | 7 | 0 | 0 | 0 | 0 | |
| 25 | 0 | 0 | 0 | 0 | 0 | 14 | 17 | 2 | 3 | 0 | 0 | 0 | |
| 26 | 0 | 0 | 0 | 0 | 0 | 6 | 19 | 10 | 0 | 0 | 0 | 0 | |
| 27 | 0 | 0 | 0 | 0 | 0 | 11 | 17 | 11 | 2 | 0 | 0 | 0 | |
| 28 | 0 | 0 | 0 | 0 | 0 | 12 | 5 | 2 | 0 | 0 | 0 | 0 | |
| 29 | 0 | 0 | 0 | 0 | 0 | 15 | 2 | 3 | 2 | 0 | 0 | 0 | |
| 30 | 0 | 0 | 0 | 0 | 0 | 12 | 3 | 6 | 0 | 0 | 0 | 0 | |
| 31 | 0 | 0 | 0 | 0 | 0 | 0 | 8 | 3 | 0 | 0 | 0 | 0 | |
| Total | 0 | 0 | 0 | 0 | 3 | 196 | 309 | 175 | 98 | 59 | 0 | 0 | 840 |
| Normal | 0 | 0 | 0 | 0 | 64 | 173 | 285 | 235 | 87 | 13 | 0 | 0 | 857 |
| Deviation | |||||||||||||
| From Normal | 0 | 0 | 0 | 0 | (61) | 23 | 24 | (60) | 11 | 46 | 0 | 0 | (17) |
| Zone 1= Hammond, Gary, Crown Point, Hobart, Monticello | |||||||||||||