Evapotranspiration Calculations
Roxby Downs (Olympic Dam Aerodrome) - September 2026 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) |
|---|---|---|---|---|---|---|---|---|---|
| 01/09/2026 | 5.2 | 0.0 | 27.5 | 10.0 | 77 | 21 | 4.35 | 14.62 | |
| 02/09/2026 | 4.4 | 0.0 | 24.5 | 15.0 | 77 | 38 | 4.09 | 18.79 | |
| 03/09/2026 | 3.8 | 0.0 | 23.9 | 6.5 | 89 | 32 | 2.90 | 19.19 | |
| 04/09/2026 | 5.1 | 0.0 | 28.8 | 14.4 | 65 | 30 | 4.36 | 11.80 | |
| 05/09/2026 | 5.0 | 0.4 | 23.3 | 14.8 | 75 | 34 | 5.42 | 19.52 | |
| 06/09/2026 | 4.0 | 0.0 | 23.5 | 6.5 | 87 | 28 | 2.90 | 19.65 | |
| 07/09/2026 | 3.8 | 0.0 | 22.9 | 8.7 | 90 | 33 | 3.30 | 16.74 | |
| 08/09/2026 | 3.3 | 0.0 | 22.1 | 9.9 | 91 | 39 | 3.28 | 13.78 | |
| 09/09/2026 | 3.5 | 3.8 | 19.0 | 11.6 | 90 | 43 | 5.89 | 13.16 | |
| 10/09/2026 | 4.6 | 0.0 | 20.7 | 7.4 | 70 | 26 | 4.48 | 20.28 | |
| 11/09/2026 | 4.9 | 0.0 | 25.0 | 5.3 | 82 | 19 | 3.59 | 20.02 | |
| 12/09/2026 | 4.9 | 0.0 | 28.8 | 11.0 | 64 | 21 | 2.61 | 19.91 | |
| 13/09/2026 | 7.0 | 0.0 | 32.3 | 14.7 | 60 | 26 | 4.91 | 20.42 | |
| 14/09/2026 | 4.7 | 0.0 | 25.0 | 10.2 | 90 | 31 | 3.82 | 20.89 | |
| 15/09/2026 | 4.8 | 0.0 | 22.9 | 10.6 | 86 | 38 | 6.17 | 20.74 | |
| Totals: | 69.0 | 4.2 |
