Evapotranspiration Calculations
Roxby Downs (Olympic Dam Aerodrome) - May 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) |
|---|---|---|---|---|---|---|---|---|---|
| 01/05/2026 | 7.1 | 0.0 | 30.7 | 16.9 | 50 | 22 | 6.30 | 14.42 | |
| 02/05/2026 | 4.3 | 0.0 | 24.5 | 20.7 | 78 | 32 | 5.06 | 10.33 | |
| 03/05/2026 | 4.0 | 0.4 | 22.4 | 8.1 | 78 | 26 | 4.25 | 15.38 | |
| 04/05/2026 | 3.3 | 0.0 | 21.9 | 8.5 | 84 | 38 | 3.91 | 13.07 | |
| 05/05/2026 | 3.0 | 0.0 | 21.7 | 10.7 | 92 | 39 | 3.38 | 14.30 | |
| 06/05/2026 | 3.0 | 0.0 | 21.7 | 7.0 | 87 | 36 | 3.21 | 13.96 | |
| 07/05/2026 | 3.9 | 0.0 | 19.3 | 12.6 | 78 | 32 | 5.90 | 14.84 | |
| 08/05/2026 | 3.0 | 0.0 | 19.8 | 5.5 | 81 | 40 | 3.92 | 14.77 | |
| 09/05/2026 | 2.8 | 0.0 | 21.2 | 9.7 | 96 | 45 | 3.54 | 14.65 | |
| 10/05/2026 | 2.1 | 0.0 | 19.7 | 5.9 | 92 | 39 | 2.10 | 9.51 | |
| 11/05/2026 | 2.7 | 0.0 | 22.9 | 6.2 | 87 | 36 | 2.35 | 14.27 | |
| 12/05/2026 | 3.8 | 0.0 | 25.9 | 11.3 | 71 | 29 | 3.26 | 14.27 | |
| 13/05/2026 | 3.7 | 0.0 | 26.3 | 13.4 | 78 | 35 | 3.64 | 13.57 | |
| 14/05/2026 | 3.1 | 0.0 | 24.9 | 12.1 | 79 | 42 | 3.29 | 11.58 | |
| 15/05/2026 | 3.4 | 0.0 | 24.8 | 17.4 | 95 | 39 | 5.06 | 8.84 | |
| 16/05/2026 | 2.4 | 22.0 | 23.8 | 15.6 | 98 | 61 | 3.43 | 13.27 | |
| 17/05/2026 | 1.9 | 6.0 | 21.4 | 14.0 | 100 | 61 | 2.22 | 11.90 | |
| Totals: | 57.5 | 28.4 |
