Observed Weather Observations (compared to long term averages LTA for Brisbane since 1840)
| 2009 | Aug | Sept | Oct | Nov |
| Nett precipitation (Rainfall minus Evaporation) |
–126.4mm | –154.4 mm | –178.0mm | –199.2mm |
| Total rainfall for month | 41.9mm down (91.2% down) |
22.3 mm down (48.8% down) |
18.0mm down (27.9% down) |
65.6mm down (68% down) |
| No. days with rainfall>=1mm | 2 days (50% down) |
2 days (54.5% down) |
7 days (18.6% up) |
5 days (23% down) |
| 9am relative humidity | 1% down | 7% down | 12% down | 5% down |
| 3pm relative humidity | average | 7% down | 6% down | 1% down |