| 22 | 2100 TUE AUG 12 | Tropical Depression Guillermo | 16.3N | 140.6W | W | 17 (15) | 1008 (29.77) | 29 (25) |
| 21 | 1500 TUE AUG 12 | Tropical Depression Guillermo | 16.4N | 139.1W | W | 17 (15) | 1007 (29.74) | 34 (30) |
| 20 | 0900 TUE AUG 12 | Tropical Depression Guillermo | 16.3N | 137.2W | W | 16 (14) | 1007 (29.74) | 34 (30) |
| 19 | 0300 TUE AUG 12 | Tropical Depression Guillermo | 16.4N | 135.5W | W | 15 (13) | 1007 (29.74) | 34 (30) |
| 18 | 2100 MON AUG 11 | Tropical Depression Guillermo | 16.2N | 134W | W | 15 (13) | 1007 (29.74) | 34 (30) |
| 17 | 1500 MON AUG 11 | Tropical Depression Guillermo | 16N | 132.6W | W | 15 (13) | 1006 (29.71) | 34 (30) |
| 16 | 0900 MON AUG 11 | Tropical Depression Guillermo | 15.8N | 131.2W | W | 14 (12) | 1006 (29.71) | 34 (30) |
| 15 | 0300 MON AUG 11 | Tropical Depression Guillermo | 15.5N | 130W | W | 16 (14) | 1006 (29.71) | 34 (30) |
| 14 | 2100 SUN AUG 10 | Tropical Storm Guillermo | 15.4N | 128.4W | W | 13 (11) | 1005 (29.68) | 40 (35) |
| 13 | 1500 SUN AUG 10 | Tropical Storm Guillermo | 15.3N | 127.5W | W | 14 (12) | 1002 (29.59) | 46 (40) |
| 11 | 0300 SUN AUG 10 | Tropical Storm Guillermo | 15.4N | 125.2W | W | 14 (12) | 1000 (29.53) | 52 (45) |
| 10 | 2100 SAT AUG 09 | Tropical Storm Guillermo | 15.4N | 124W | W | 14 (12) | 1000 (29.53) | 52 (45) |
| 9 | 1500 SAT AUG 09 | Tropical Storm Guillermo | 15.7N | 122.8W | W | 14 (12) | 997 (29.44) | 58 (50) |
| 7 | 0300 SAT AUG 09 | Tropical Storm Guillermo | 16.1N | 120.3W | W | 9 (8) | 997 (29.44) | 58 (50) |
| 6 | 2100 FRI AUG 08 | Tropical Storm Guillermo | 16N | 119.6W | WSW | 8 (7) | 997 (29.44) | 58 (50) |
| 5 | 1500 FRI AUG 08 | Tropical Storm Guillermo | 16.6N | 118.7W | W | 7 (6) | 1000 (29.53) | 52 (45) |
| 4 | 0900 FRI AUG 08 | Tropical Storm Guillermo | 16.6N | 118.2W | W | 7 (6) | 1003 (29.62) | 46 (40) |
| 3 | 0300 FRI AUG 08 | Tropical Storm Guillermo | 16.7N | 117.5W | W | 7 (6) | 1003 (29.62) | 46 (40) |
| 2 | 2100 THU AUG 07 | Tropical Depression Seven-E | 17N | 117.2W | WNW | 9 (8) | 1008 (29.77) | 34 (30) |
| 1 | 1500 THU AUG 07 | Tropical Depression Seven-E | 16.5N | 116.5W | WNW | 9 (8) | 1009 (29.8) | 29 (25) |