Evapotranspiration Calculations
Learmonth 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 | 5.8 | 0.0 | 29.0 | 11.3 | 73 | 15 | 3.59 | 20.94 | |
| 02/09/2025 | 5.6 | 0.0 | 30.4 | 16.4 | 84 | 21 | 3.30 | 21.59 | |
| 03/09/2025 | 5.7 | 0.0 | 30.8 | 15.5 | 95 | 31 | 4.06 | 22.17 | |
| 04/09/2025 | 5.2 | 0.0 | 28.2 | 15.4 | 92 | 39 | 4.37 | 22.29 | |
| 05/09/2025 | 5.1 | 0.0 | 27.2 | 14.8 | 92 | 46 | 5.76 | 20.93 | |
| 06/09/2025 | 4.7 | 4.2 | 24.1 | 14.0 | 89 | 36 | 5.28 | 17.41 | |
| 07/09/2025 | 5.7 | 0.0 | 25.1 | 10.3 | 84 | 26 | 5.36 | 22.68 | |
| 08/09/2025 | 6.4 | 0.0 | 26.1 | 11.1 | 82 | 21 | 5.93 | 22.86 | |
| 09/09/2025 | 6.8 | 0.0 | 27.9 | 12.1 | 76 | 18 | 5.43 | 22.94 | |
| 10/09/2025 | 6.6 | 0.0 | 29.6 | 11.1 | 64 | 15 | 4.01 | 23.11 | |
| 11/09/2025 | 5.7 | 0.0 | 27.6 | 12.7 | 84 | 24 | 3.98 | 23.19 | |
| 12/09/2025 | 5.3 | 0.0 | 27.8 | 12.4 | 95 | 29 | 3.68 | 23.31 | |
| 13/09/2025 | 5.9 | 0.0 | 31.2 | 12.5 | 92 | 19 | 3.18 | 23.24 | |
| 14/09/2025 | 3.7 | 0.0 | 27.1 | 18.6 | 89 | 61 | 4.21 | 14.50 | |
| 15/09/2025 | 6.5 | 0.0 | 27.6 | 16.6 | 81 | 32 | 6.93 | 20.80 | |
| 16/09/2025 | 7.3 | 0.0 | 27.8 | 12.1 | 76 | 20 | 6.59 | 23.85 | |
| 17/09/2025 | 8.8 | 0.0 | 32.0 | 12.4 | 83 | 15 | 7.04 | 23.96 | |
| 18/09/2025 | 8.9 | 0.0 | 32.4 | 13.5 | 73 | 16 | 6.82 | 24.07 | |
| 19/09/2025 | 8.4 | 0.0 | 34.7 | 14.6 | 79 | 16 | 5.17 | 24.17 | |
| 20/09/2025 | 5.7 | 0.0 | 30.7 | 15.0 | 95 | 33 | 3.51 | 24.07 | |
| Totals: | 123.8 | 4.2 |
