Evapotranspiration Calculations
Toowoomba Airport - September 2025 daily calculations
| Date | Evapotrans- piration (mm) 0000- 2400 | Rain (mm) 0900- 0900 | Pan Evaporation (mm) 0900- 0900 | Max Temp | Min Temp | Max Rel Hum (%) | Min Rel Hum (%) | Average 10m Wind Speed (m/sec) | Solar Radiation (MJ/sq m) |
|---|---|---|---|---|---|---|---|---|---|
| 01/09/2025 | 3.2 | 0.0 | 17.9 | 10.0 | 89 | 50 | 5.55 | 15.40 | |
| 02/09/2025 | 3.1 | 0.0 | 19.5 | 8.0 | 96 | 47 | 3.91 | 16.19 | |
| 03/09/2025 | 3.6 | 0.0 | 21.4 | 10.8 | 99 | 35 | 3.44 | 18.36 | |
| 04/09/2025 | 3.4 | 0.0 | 21.1 | 11.6 | 96 | 44 | 3.71 | 16.81 | |
| 05/09/2025 | 4.4 | 0.0 | 23.8 | 11.0 | 97 | 29 | 4.61 | 16.70 | |
| 06/09/2025 | 3.9 | 0.0 | 19.6 | 11.1 | 88 | 54 | 8.45 | 20.18 | |
| 07/09/2025 | 3.9 | 0.0 | 19.5 | 9.3 | 90 | 49 | 7.09 | 20.50 | |
| 08/09/2025 | 4.0 | 0.0 | 22.3 | 9.5 | 94 | 43 | 4.23 | 20.87 | |
| 09/09/2025 | 4.1 | 0.0 | 23.9 | 10.7 | 91 | 43 | 3.64 | 20.50 | |
| 10/09/2025 | 3.1 | 0.0 | 23.2 | 14.6 | 97 | 55 | 4.55 | 11.51 | |
| 11/09/2025 | 3.7 | 5.0 | 16.2 | 8.0 | 96 | 44 | 8.88 | 21.19 | |
| 12/09/2025 | 3.7 | 0.0 | 19.8 | 4.8 | 94 | 43 | 4.31 | 20.61 | |
| 13/09/2025 | 3.6 | 0.0 | 20.4 | 11.5 | 97 | 48 | 5.33 | 17.08 | |
| 14/09/2025 | 4.1 | 1.4 | 20.5 | 10.6 | 99 | 40 | 4.98 | 21.45 | |
| 15/09/2025 | 4.4 | 0.2 | 21.7 | 9.9 | 96 | 35 | 4.60 | 21.86 | |
| 16/09/2025 | 4.3 | 0.0 | 23.4 | 9.3 | 97 | 39 | 4.12 | 20.41 | |
| 17/09/2025 | 4.8 | 0.0 | 27.9 | 12.9 | 98 | 34 | 3.48 | 20.49 | |
| 18/09/2025 | 5.7 | 0.0 | 29.3 | 16.4 | 98 | 26 | 4.46 | 21.14 | |
| 19/09/2025 | 0.0 | 15.5 | 99 | 35 | 5.02 | 21.70 | |||
| 20/09/2025 | 18.2 | 98 | 67 | 4.81 | 11.40 | ||||
| Totals: | 71.0 | 6.6 |
