Evapotranspiration Calculations
Douglas River Research Farm - 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 | 6.9 | 0.0 | | 35.5 | 14.8 | 72 | 16 | 3.18 | 23.55 |
| 02/09/2025 | 7.1 | 0.0 | | 35.3 | 12.2 | 79 | 13 | 3.37 | 23.70 |
| 03/09/2025 | 6.4 | 0.0 | | 33.7 | 12.4 | 63 | 10 | 2.65 | 23.86 |
| 04/09/2025 | 5.4 | 0.0 | | 35.4 | 7.9 | 89 | 15 | 1.61 | 23.93 |
| 05/09/2025 | 5.4 | 0.0 | | 36.7 | 13.0 | 88 | 26 | 1.57 | 23.93 |
| 06/09/2025 | 4.9 | 0.0 | | 37.2 | 18.9 | 92 | 34 | 1.67 | 19.41 |
| 07/09/2025 | 5.6 | 0.0 | | 38.5 | 21.9 | 94 | 29 | 2.01 | 20.83 |
| 08/09/2025 | 5.5 | 0.0 | | 38.0 | 21.5 | 95 | 31 | 1.91 | 21.34 |
| 09/09/2025 | 5.8 | 0.0 | | 39.0 | 20.2 | 95 | 24 | 1.79 | 22.69 |
| 10/09/2025 | 5.4 | 0.0 | | 37.5 | 22.4 | 95 | 34 | 1.95 | 20.56 |
| 11/09/2025 | 6.2 | 9.2 | | 38.0 | 23.0 | 97 | 30 | 2.55 | 22.27 |
| 12/09/2025 | 4.2 | 19.4 | | 28.6 | 21.0 | 97 | 27 | 3.69 | 10.01 |
| 13/09/2025 | 8.2 | 0.0 | | 34.8 | 17.4 | 72 | 17 | 4.74 | 24.73 |
| 14/09/2025 | 6.8 | 0.0 | | 35.7 | 16.7 | 66 | 21 | 2.83 | 24.94 |
| 15/09/2025 | | 0.0 | | | 17.5 | 93 | 30 | 1.76 | 23.58 |
| 16/09/2025 | | | | | | | | | 22.84 |
| 17/09/2025 | | 0.0 | | 36.0 | 20.1 | | | | 24.11 |
| 18/09/2025 | 6.2 | 0.0 | | 36.8 | 19.9 | 97 | 24 | 2.13 | 24.68 |
| 19/09/2025 | 6.2 | 0.0 | | 38.4 | 20.5 | 96 | 30 | 1.89 | 25.10 |
| 20/09/2025 | 6.7 | 0.0 | | 39.1 | 22.1 | 96 | 29 | 2.30 | 25.51 |
| Totals: | 102.9 | 28.6 | | | | | | | |
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