Evapotranspiration Calculations
South Johnstone Exp Stn - 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 | 3.8 | 0.6 | | 26.6 | 17.1 | 97 | 58 | 1.49 | 21.19 |
| 02/09/2025 | 3.4 | 0.0 | | 27.2 | 18.8 | 95 | 50 | 1.42 | 16.80 |
| 03/09/2025 | 3.0 | 0.0 | | 26.5 | 16.3 | 97 | 63 | 1.50 | 15.58 |
| 04/09/2025 | 3.6 | 0.2 | | 27.2 | 16.5 | 97 | 48 | 1.21 | 19.14 |
| 05/09/2025 | 3.3 | 0.8 | | 27.9 | 19.5 | 97 | 69 | 2.06 | 16.17 |
| 06/09/2025 | 4.1 | 0.4 | | 27.4 | 22.5 | 89 | 61 | 3.15 | 18.82 |
| 07/09/2025 | 2.5 | 1.0 | | 25.6 | 21.8 | 93 | 74 | 2.95 | 10.34 |
| 08/09/2025 | 3.8 | 1.4 | | 26.7 | 21.6 | 94 | 64 | 2.59 | 18.48 |
| 09/09/2025 | 4.2 | 8.0 | | 27.0 | 17.7 | 97 | 56 | 2.13 | 22.36 |
| 10/09/2025 | 4.4 | 0.6 | | 28.6 | 18.9 | 97 | 50 | 1.44 | 23.25 |
| 11/09/2025 | 4.5 | 0.0 | | 29.2 | 17.1 | 97 | 55 | 1.66 | 23.98 |
| 12/09/2025 | 4.0 | 0.0 | | 28.7 | 16.0 | 96 | 61 | 2.15 | 20.87 |
| 13/09/2025 | 1.8 | 74.2 | | 22.4 | 20.8 | 96 | 73 | 2.81 | 6.11 |
| 14/09/2025 | 2.8 | 58.6 | | 24.6 | 18.3 | 96 | 76 | 2.02 | 15.06 |
| 15/09/2025 | | 8.0 | | | 18.8 | 97 | 82 | 2.95 | 17.25 |
| 16/09/2025 | | | | | | | | | 14.87 |
| 17/09/2025 | | 43.0 | | 25.8 | 22.4 | | | | 11.04 |
| 18/09/2025 | 4.0 | 5.2 | | 28.7 | 22.4 | 97 | 72 | 2.48 | 19.94 |
| 19/09/2025 | 4.2 | 2.2 | | 28.2 | 21.6 | 97 | 67 | 1.93 | 21.69 |
| 20/09/2025 | 4.2 | 0.2 | | 28.6 | 18.4 | 97 | 61 | 1.07 | 22.97 |
| Totals: | 61.6 | 204.4 | | | | | | | |
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