| 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 | 1999 | 1999 | 1999 | 1999 | 1999 | 1999 | 1999 | 1999 | 1999 | 1999 | 1999 | 1999 | 1999 |
| 1 | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 6 | 12 | 0 | 0 | 0 | |
| 2 | 0 | 0 | 0 | 9 | 0 | 0 | 18 | 6 | 17 | 0 | 0 | 0 | |
| 3 | 0 | 0 | 0 | 4 | 1 | 0 | 20 | 12 | 16 | 0 | 0 | 0 | |
| 4 | 0 | 0 | 0 | 0 | 5 | 3 | 21 | 7 | 17 | 0 | 0 | 0 | |
| 5 | 0 | 0 | 0 | 0 | 3 | 13 | 21 | 5 | 17 | 0 | 0 | 0 | |
| 6 | 0 | 0 | 0 | 0 | 0 | 15 | 10 | 15 | 2 | 0 | 0 | 0 | |
| 7 | 0 | 0 | 0 | 0 | 0 | 11 | 13 | 8 | 6 | 0 | 0 | 0 | |
| 8 | 0 | 0 | 0 | 0 | 0 | 14 | 16 | 1 | 6 | 0 | 0 | 0 | |
| 9 | 0 | 0 | 0 | 0 | 0 | 18 | 12 | 10 | 0 | 0 | 2 | 0 | |
| 10 | 0 | 0 | 0 | 0 | 0 | 17 | 2 | 13 | 0 | 0 | 0 | 0 | |
| 11 | 0 | 0 | 0 | 0 | 3 | 16 | 5 | 9 | 9 | 0 | 0 | 0 | |
| 12 | 0 | 0 | 0 | 0 | 0 | 15 | 7 | 6 | 4 | 1 | 0 | 0 | |
| 13 | 0 | 0 | 0 | 0 | 0 | 3 | 10 | 10 | 0 | 0 | 0 | 0 | |
| 14 | 0 | 0 | 0 | 0 | 0 | 0 | 12 | 1 | 0 | 0 | 0 | 0 | |
| 15 | 0 | 0 | 0 | 0 | 0 | 0 | 14 | 7 | 0 | 3 | 0 | 0 | |
| 16 | 0 | 0 | 0 | 0 | 5 | 0 | 19 | 13 | 0 | 0 | 0 | 0 | |
| 17 | 0 | 0 | 0 | 0 | 2 | 0 | 10 | 12 | 0 | 0 | 0 | 0 | |
| 18 | 0 | 0 | 0 | 0 | 0 | 2 | 13 | 4 | 4 | 0 | 0 | 0 | |
| 19 | 0 | 0 | 0 | 0 | 0 | 5 | 16 | 5 | 4 | 0 | 0 | 0 | |
| 20 | 0 | 0 | 0 | 0 | 6 | 8 | 15 | 1 | 0 | 0 | 0 | 0 | |
| 21 | 0 | 0 | 0 | 0 | 0 | 12 | 20 | 3 | 0 | 0 | 0 | 0 | |
| 22 | 0 | 0 | 0 | 0 | 0 | 12 | 19 | 9 | 0 | 0 | 0 | 0 | |
| 23 | 0 | 0 | 0 | 0 | 0 | 14 | 18 | 8 | 4 | 0 | 0 | 0 | |
| 24 | 0 | 0 | 0 | 0 | 0 | 11 | 22 | 6 | 0 | 0 | 0 | 0 | |
| 25 | 0 | 0 | 0 | 0 | 0 | 13 | 21 | 5 | 8 | 0 | 0 | 0 | |
| 26 | 0 | 0 | 0 | 0 | 0 | 16 | 16 | 7 | 12 | 0 | 0 | 0 | |
| 27 | 0 | 0 | 0 | 0 | 4 | 15 | 17 | 16 | 6 | 0 | 0 | 0 | |
| 28 | 0 | 0 | 0 | 0 | 8 | 9 | 19 | 17 | 2 | 2 | 0 | 0 | |
| 29 | 0 | 0 | 0 | 0 | 7 | 0 | 25 | 0 | 0 | 4 | 0 | 0 | |
| 30 | 0 | 0 | 2 | 0 | 15 | 8 | 28 | 0 | 0 | 2 | 0 | 0 | |
| 31 | 0 | 0 | 3 | 0 | 5 | 0 | 18 | 6 | 0 | 0 | 0 | 0 | |
| Total | 0 | 0 | 5 | 13 | 64 | 250 | 487 | 228 | 146 | 12 | 2 | 0 | 1,207 |
| Normal | 0 | 0 | 0 | 0 | 64 | 173 | 285 | 235 | 87 | 13 | 0 | 0 | 857 |
| Deviation | |||||||||||||
| From Normal | 0 | 0 | 5 | 13 | 0 | 77 | 202 | (7) | 59 | (1) | 2 | 0 | 350 |
| Zone 1= Hammond, Gary, Crown Point, Hobart, Monticello | |||||||||||||