Evapotranspiration Calculations
Katanning - 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 | 2.8 | 0.0 | 17.6 | 2.8 | 95 | 46 | 3.66 | 17.11 | |
| 02/09/2025 | 2.1 | 1.0 | 15.8 | 7.5 | 98 | 57 | 2.05 | 14.46 | |
| 03/09/2025 | 2.2 | 0.0 | 16.7 | 4.5 | 97 | 54 | 2.08 | 15.84 | |
| 04/09/2025 | 2.3 | 0.0 | 17.1 | 6.6 | 96 | 50 | 2.08 | 15.06 | |
| 05/09/2025 | 1.5 | 0.0 | 15.3 | 5.7 | 97 | 77 | 4.24 | 8.82 | |
| 06/09/2025 | 2.3 | 14.0 | 13.3 | 7.0 | 96 | 61 | 7.85 | 15.14 | |
| 07/09/2025 | 1.8 | 0.4 | 12.8 | 3.9 | 96 | 70 | 4.94 | 12.62 | |
| 08/09/2025 | 1.7 | 1.2 | 11.4 | 1.8 | 94 | 69 | 4.58 | 13.14 | |
| 09/09/2025 | 2.0 | 1.6 | 13.3 | 5.4 | 94 | 62 | 2.59 | 14.17 | |
| 10/09/2025 | 2.2 | 0.0 | 15.8 | 3.0 | 98 | 56 | 1.25 | 18.54 | |
| 11/09/2025 | 2.6 | 0.0 | 17.9 | 3.7 | 98 | 49 | 1.87 | 19.45 | |
| 12/09/2025 | 3.5 | 0.0 | 20.7 | 5.4 | 91 | 40 | 4.02 | 17.03 | |
| 13/09/2025 | 3.1 | 0.0 | 20.4 | 10.5 | 94 | 53 | 5.50 | 12.51 | |
| 14/09/2025 | 1.8 | 8.8 | 13.2 | 10.0 | 96 | 72 | 7.17 | 9.80 | |
| 15/09/2025 | 2.0 | 8.2 | 12.6 | 3.5 | 91 | 68 | 4.74 | 13.90 | |
| 16/09/2025 | 2.5 | 0.6 | 15.2 | 2.7 | 95 | 57 | 3.74 | 17.75 | |
| 17/09/2025 | 2.8 | 0.8 | 17.6 | 7.8 | 96 | 58 | 5.03 | 16.57 | |
| 18/09/2025 | 2.7 | 2.6 | 15.5 | 6.3 | 93 | 55 | 4.73 | 17.02 | |
| 19/09/2025 | 2.5 | 0.0 | 17.9 | 9.7 | 97 | 68 | 3.18 | 16.41 | |
| 20/09/2025 | 2.8 | 0.0 | 19.7 | 8.4 | 98 | 64 | 2.04 | 19.39 | |
| Totals: | 47.2 | 39.2 |
