Evapotranspiration Calculations
Roxby Downs (Olympic Dam Aerodrome) - April 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) |
| 01/04/2026 | 5.3 | 0.0 | | 29.9 | 18.9 | 68 | 36 | 3.72 | 18.98 |
| 02/04/2026 | 5.7 | 0.0 | | 30.2 | 16.0 | 81 | 19 | 3.60 | 20.16 |
| 03/04/2026 | 5.2 | 0.0 | | 30.8 | 14.8 | 76 | 31 | 3.14 | 20.04 |
| 04/04/2026 | 5.2 | 0.0 | | 32.0 | 18.5 | 69 | 30 | 2.74 | 19.95 |
| 05/04/2026 | 6.2 | 0.0 | | 33.5 | 18.6 | 63 | 22 | 3.61 | 19.81 |
| 06/04/2026 | 6.4 | 0.0 | | 35.2 | 19.0 | 63 | 21 | 3.56 | 19.66 |
| 07/04/2026 | 6.0 | 0.0 | | 33.2 | 19.8 | 81 | 32 | 4.35 | 18.83 |
| 08/04/2026 | 4.7 | 0.0 | | 30.9 | 21.0 | 64 | 31 | 3.56 | 10.04 |
| 09/04/2026 | 4.8 | 0.0 | | 31.9 | 21.7 | 74 | 27 | 3.75 | 8.70 |
| 10/04/2026 | 4.9 | 0.0 | | 24.3 | 15.3 | 82 | 36 | 5.67 | 19.01 |
| 11/04/2026 | 3.6 | 0.0 | | 21.0 | 11.1 | 86 | 42 | 4.99 | 13.76 |
| 12/04/2026 | 4.0 | 0.0 | | 22.0 | 9.0 | 83 | 33 | 3.93 | 18.69 |
| 13/04/2026 | 3.6 | 0.0 | | 24.6 | 8.4 | 88 | 33 | 2.39 | 18.53 |
| 14/04/2026 | 3.5 | 0.0 | | 26.2 | 8.6 | 84 | 29 | 1.96 | 18.20 |
| 15/04/2026 | 3.6 | 0.0 | | 27.7 | 9.6 | 82 | 25 | 1.79 | 18.22 |
| 16/04/2026 | 3.8 | 0.0 | | 29.7 | 10.1 | 74 | 20 | 1.76 | 18.07 |
| 17/04/2026 | 4.4 | 0.0 | | 30.4 | 11.0 | 66 | 19 | 2.29 | 17.90 |
| 18/04/2026 | 5.0 | 0.0 | | 29.9 | 15.5 | 74 | 25 | 3.49 | 16.83 |
| 19/04/2026 | 4.8 | 0.0 | | 30.5 | 15.5 | 61 | 22 | 2.93 | 16.37 |
| 20/04/2026 | 4.3 | 0.0 | | 31.3 | 12.6 | 71 | 19 | 2.16 | 17.43 |
| 21/04/2026 | 6.2 | 0.0 | | 31.2 | 15.4 | 43 | 15 | 4.01 | 17.02 |
| 22/04/2026 | 4.7 | 0.0 | | 30.3 | 11.5 | 54 | 14 | 2.57 | 17.13 |
| 23/04/2026 | 5.3 | 0.0 | | 29.0 | 11.9 | 54 | 19 | 3.64 | 16.97 |
| 24/04/2026 | 5.0 | 0.0 | | 29.2 | 11.9 | 59 | 18 | 3.38 | 15.00 |
| 25/04/2026 | 5.4 | 0.0 | | 30.4 | 13.1 | 50 | 21 | 3.83 | 13.53 |
| 26/04/2026 | 4.9 | 0.0 | | 26.8 | 16.4 | 66 | 35 | 4.65 | 16.25 |
| Totals: | 126.5 | 0.0 | | | | | | | |
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