Evapotranspiration Calculations
Roxby Downs (Olympic Dam Aerodrome) - October 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) |
|---|---|---|---|---|---|---|---|---|---|
| 01/10/2025 | 5.8 | 0.0 | 24.9 | 7.6 | 75 | 20 | 4.53 | 23.42 | |
| 02/10/2025 | 5.4 | 0.0 | 23.9 | 10.6 | 81 | 24 | 4.20 | 24.06 | |
| 03/10/2025 | 5.6 | 0.0 | 29.0 | 7.6 | 53 | 13 | 2.50 | 24.11 | |
| 04/10/2025 | 9.2 | 0.0 | 32.3 | 12.9 | 32 | 9 | 5.63 | 24.25 | |
| 05/10/2025 | 11.8 | 0.0 | 37.1 | 17.7 | 41 | 4 | 7.08 | 24.05 | |
| 06/10/2025 | 5.1 | 0.0 | 23.9 | 18.6 | 68 | 44 | 6.05 | 15.10 | |
| 07/10/2025 | 3.7 | 1.8 | 21.9 | 12.7 | 90 | 44 | 3.28 | 16.89 | |
| 08/10/2025 | 3.5 | 0.4 | 22.4 | 13.4 | 83 | 48 | 3.48 | 13.44 | |
| 09/10/2025 | 5.7 | 0.0 | 24.8 | 12.1 | 80 | 22 | 3.99 | 25.07 | |
| 10/10/2025 | 5.9 | 0.0 | 29.2 | 7.7 | 59 | 17 | 2.66 | 25.43 | |
| 11/10/2025 | 7.3 | 0.0 | 31.8 | 12.7 | 50 | 14 | 3.60 | 25.59 | |
| 12/10/2025 | 6.8 | 0.0 | 27.8 | 15.4 | 83 | 15 | 4.66 | 25.10 | |
| 13/10/2025 | 6.6 | 0.2 | 29.2 | 11.7 | 73 | 11 | 3.48 | 25.65 | |
| 14/10/2025 | 6.9 | 0.0 | 29.9 | 13.4 | 65 | 14 | 3.66 | 25.93 | |
| Totals: | 89.3 | 2.4 |
