| NORTHERN INDIANA PUBLIC SERVICE COMPANY | |||||||||||||
| Daily Heating Degree Days SOUTH BEND Weather Zone | |||||||||||||
| ZONE 3 | |||||||||||||
| 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 | 28 | 30 | 15 | 25 | 21 | 7 | 0 | 0 | 0 | 17 | 14 | 29 | |
| 2 | 16 | 34 | 28 | 15 | 18 | 5 | 0 | 0 | 0 | 11 | 26 | 28 | |
| 3 | 13 | 33 | 32 | 9 | 18 | 1 | 0 | 0 | 7 | 0 | 30 | 28 | |
| 4 | 12 | 29 | 24 | 3 | 17 | 5 | 8 | 0 | 10 | 5 | 28 | 32 | |
| 5 | 33 | 34 | 30 | 4 | 9 | 3 | 3 | 1 | 6 | 0 | 24 | 39 | |
| 6 | 48 | 39 | 37 | 15 | 15 | 2 | 0 | 3 | 0 | 0 | 20 | 37 | |
| 7 | 48 | 38 | 35 | 30 | 14 | 4 | 0 | 0 | 0 | 0 | 23 | 34 | |
| 8 | 47 | 34 | 27 | 36 | 5 | 2 | 0 | 0 | 0 | 0 | 23 | 37 | |
| 9 | 42 | 36 | 27 | 38 | 17 | 0 | 1 | 0 | 0 | 1 | 28 | 34 | |
| 10 | 50 | 36 | 42 | 36 | 18 | 0 | 1 | 0 | 4 | 11 | 30 | 33 | |
| 11 | 62 | 39 | 31 | 28 | 10 | 0 | 0 | 0 | 8 | 7 | 32 | 37 | |
| 12 | 67 | 48 | 33 | 27 | 14 | 0 | 0 | 0 | 5 | 0 | 36 | 37 | |
| 13 | 65 | 50 | 29 | 29 | 22 | 0 | 0 | 0 | 3 | 5 | 36 | 41 | |
| 14 | 56 | 42 | 38 | 27 | 14 | 5 | 0 | 2 | 0 | 19 | 32 | 39 | |
| 15 | 45 | 42 | 45 | 17 | 24 | 3 | 0 | 0 | 0 | 18 | 39 | 32 | |
| 16 | 51 | 49 | 42 | 21 | 17 | 0 | 0 | 0 | 0 | 18 | 41 | 29 | |
| 17 | 67 | 42 | 19 | 31 | 8 | 2 | 0 | 0 | 0 | 19 | 43 | 31 | |
| 18 | 59 | 16 | 28 | 26 | 2 | 0 | 0 | 2 | 0 | 20 | 36 | 30 | |
| 19 | 56 | 27 | 30 | 20 | 13 | 0 | 0 | 1 | 0 | 18 | 36 | 27 | |
| 20 | 38 | 27 | 22 | 23 | 18 | 0 | 0 | 0 | 6 | 21 | 32 | 32 | |
| 21 | 30 | 20 | 11 | 21 | 18 | 0 | 0 | 4 | 13 | 23 | 26 | 34 | |
| 22 | 28 | 39 | 27 | 22 | 17 | 0 | 0 | 3 | 10 | 29 | 27 | 32 | |
| 23 | 38 | 36 | 35 | 20 | 9 | 0 | 0 | 3 | 7 | 26 | 35 | 31 | |
| 24 | 34 | 45 | 33 | 20 | 0 | 0 | 0 | 0 | 10 | 21 | 37 | 31 | |
| 25 | 47 | 41 | 21 | 22 | 6 | 0 | 0 | 0 | 6 | 21 | 20 | 31 | |
| 26 | 54 | 28 | 21 | 20 | 12 | 0 | 0 | 0 | 8 | 28 | 24 | 35 | |
| 27 | 41 | 23 | 7 | 13 | 9 | 0 | 0 | 0 | 5 | 29 | 28 | 38 | |
| 28 | 56 | 28 | 10 | 18 | 6 | 0 | 0 | 0 | 2 | 27 | 16 | 39 | |
| 29 | 57 | 0 | 19 | 9 | 4 | 0 | 0 | 1 | 2 | 21 | 16 | 32 | |
| 30 | 46 | 0 | 31 | 6 | 2 | 0 | 0 | 0 | 8 | 16 | 23 | 38 | |
| 31 | 34 | 0 | 33 | 0 | 6 | 0 | 0 | 0 | 0 | 9 | 0 | 50 | |
| Total | 1,368 | 985 | 862 | 631 | 383 | 39 | 13 | 20 | 120 | 440 | 861 | 1,057 | 6,779 |
| Normal | 1,293 | 1,081 | 856 | 489 | 233 | 28 | 7 | 22 | 85 | 395 | 723 | 1,119 | 6,331 |
| Deviation | |||||||||||||
| From Normal | 75 | (96) | 6 | 142 | 150 | 11 | 6 | (2) | 35 | 45 | 138 | (62) | 448 |
| Zone 3= Elkhart, LaPorte, Warsaw, Goshen, Angola, South Bend | |||||||||||||