Evapotranspiration Calculations
Meekatharra 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 | 5.7 | 0.0 | 26.9 | 9.0 | 43 | 15 | 3.74 | 20.42 | |
| 02/09/2025 | 6.0 | 0.0 | 28.7 | 11.5 | 37 | 15 | 3.77 | 19.54 | |
| 03/09/2025 | 5.8 | 0.0 | 29.6 | 17.1 | 47 | 27 | 4.42 | 13.11 | |
| 04/09/2025 | 4.6 | 0.0 | 22.7 | 12.2 | 77 | 28 | 3.85 | 20.85 | |
| 05/09/2025 | 5.1 | 0.0 | 24.1 | 9.8 | 97 | 30 | 6.37 | 19.08 | |
| 06/09/2025 | 3.8 | 2.8 | 18.9 | 10.5 | 95 | 36 | 5.71 | 17.13 | |
| 07/09/2025 | 3.5 | 0.2 | 19.1 | 6.6 | 98 | 35 | 3.21 | 20.94 | |
| 08/09/2025 | 4.2 | 0.0 | 19.9 | 8.0 | 87 | 32 | 4.50 | 20.83 | |
| 09/09/2025 | 5.5 | 0.0 | 20.5 | 6.4 | 60 | 18 | 5.92 | 21.57 | |
| 10/09/2025 | 5.7 | 0.0 | 22.0 | 8.6 | 57 | 18 | 5.45 | 21.76 | |
| 11/09/2025 | 6.1 | 0.0 | 23.5 | 9.7 | 52 | 14 | 5.11 | 21.86 | |
| 12/09/2025 | 6.3 | 0.0 | 26.1 | 11.0 | 38 | 13 | 4.21 | 22.00 | |
| 13/09/2025 | 7.6 | 0.0 | 30.3 | 11.0 | 37 | 10 | 4.88 | 21.02 | |
| 14/09/2025 | 4.9 | 0.0 | 24.7 | 14.3 | 79 | 33 | 5.07 | 15.98 | |
| 15/09/2025 | 4.9 | 0.0 | 20.8 | 11.6 | 74 | 32 | 5.39 | 21.08 | |
| 16/09/2025 | 4.6 | 0.0 | 20.7 | 9.5 | 69 | 24 | 3.46 | 22.45 | |
| 17/09/2025 | 5.6 | 0.0 | 26.2 | 8.7 | 47 | 16 | 3.36 | 22.74 | |
| 18/09/2025 | 6.0 | 0.0 | 25.9 | 11.4 | 66 | 23 | 4.70 | 22.80 | |
| 19/09/2025 | 0.0 | 11.4 | 58 | 15 | 5.41 | 23.00 | |||
| 20/09/2025 | 28.7 | 23.14 | |||||||
| Totals: | 95.9 | 3.0 |
