| 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 | 1998 | 1998 | 1998 | 1998 | 1998 | 1998 | 1998 | 1998 | 1998 | 1998 | 1998 | 1998 | 1998 |
| 1 | 0 | 0 | 0 | 0 | 0 | 6 | 4 | 9 | 9 | 0 | 0 | 0 | |
| 2 | 0 | 0 | 0 | 0 | 0 | 0 | 12 | 12 | 2 | 0 | 0 | 0 | |
| 3 | 0 | 0 | 0 | 0 | 0 | 0 | 14 | 11 | 11 | 0 | 0 | 0 | |
| 4 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 9 | 3 | 0 | 0 | 0 | |
| 5 | 0 | 0 | 0 | 0 | 0 | 0 | 9 | 13 | 16 | 0 | 0 | 0 | |
| 6 | 0 | 0 | 0 | 0 | 2 | 0 | 15 | 13 | 15 | 0 | 0 | 0 | |
| 7 | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 11 | 0 | 0 | 0 | 0 | |
| 8 | 0 | 0 | 0 | 0 | 0 | 0 | 9 | 13 | 0 | 0 | 0 | 0 | |
| 9 | 0 | 0 | 0 | 0 | 0 | 0 | 9 | 16 | 0 | 0 | 0 | 0 | |
| 10 | 0 | 0 | 0 | 0 | 0 | 5 | 8 | 13 | 2 | 0 | 0 | 0 | |
| 11 | 0 | 0 | 0 | 0 | 0 | 6 | 6 | 8 | 7 | 0 | 0 | 0 | |
| 12 | 0 | 0 | 0 | 0 | 7 | 8 | 10 | 5 | 10 | 0 | 0 | 0 | |
| 13 | 0 | 0 | 0 | 0 | 0 | 4 | 12 | 8 | 16 | 0 | 0 | 0 | |
| 14 | 0 | 0 | 0 | 0 | 12 | 7 | 15 | 11 | 17 | 0 | 0 | 0 | |
| 15 | 0 | 0 | 0 | 0 | 12 | 3 | 14 | 9 | 8 | 0 | 0 | 0 | |
| 16 | 0 | 0 | 0 | 0 | 5 | 6 | 11 | 13 | 5 | 6 | 0 | 0 | |
| 17 | 0 | 0 | 0 | 0 | 11 | 16 | 12 | 13 | 6 | 0 | 0 | 0 | |
| 18 | 0 | 0 | 0 | 0 | 16 | 12 | 13 | 5 | 5 | 0 | 0 | 0 | |
| 19 | 0 | 0 | 0 | 0 | 12 | 10 | 17 | 6 | 14 | 0 | 0 | 0 | |
| 20 | 0 | 0 | 0 | 0 | 0 | 14 | 18 | 9 | 13 | 0 | 0 | 0 | |
| 21 | 0 | 0 | 0 | 0 | 3 | 14 | 18 | 17 | 3 | 0 | 0 | 0 | |
| 22 | 0 | 0 | 0 | 0 | 0 | 12 | 11 | 16 | 0 | 0 | 0 | 0 | |
| 23 | 0 | 0 | 0 | 0 | 0 | 14 | 6 | 20 | 0 | 0 | 0 | 0 | |
| 24 | 0 | 0 | 0 | 0 | 0 | 23 | 5 | 13 | 0 | 0 | 0 | 0 | |
| 25 | 0 | 0 | 0 | 0 | 0 | 18 | 7 | 9 | 8 | 0 | 0 | 0 | |
| 26 | 0 | 0 | 2 | 0 | 0 | 15 | 9 | 11 | 17 | 1 | 0 | 0 | |
| 27 | 0 | 0 | 0 | 0 | 9 | 17 | 10 | 10 | 3 | 0 | 0 | 0 | |
| 28 | 0 | 0 | 0 | 0 | 14 | 17 | 15 | 5 | 2 | 0 | 0 | 0 | |
| 29 | 0 | 0 | 3 | 0 | 8 | 12 | 8 | 11 | 3 | 0 | 0 | 0 | |
| 30 | 0 | 0 | 0 | 0 | 13 | 9 | 9 | 7 | 0 | 0 | 0 | 0 | |
| 31 | 0 | 0 | 0 | 0 | 6 | 0 | 5 | 6 | 0 | 0 | 0 | 0 | |
| Total | 0 | 0 | 5 | 0 | 130 | 248 | 323 | 332 | 195 | 7 | 0 | 0 | 1,240 |
| Normal | 0 | 0 | 0 | 0 | 64 | 173 | 285 | 235 | 87 | 13 | 0 | 0 | 857 |
| Deviation | |||||||||||||
| From Normal | 0 | 0 | 5 | 0 | 66 | 75 | 38 | 97 | 108 | (6) | 0 | 0 | 383 |
| Zone 1= Hammond, Gary, Crown Point, Hobart, Monticello | |||||||||||||