Evapotranspiration Calculations
Roxby Downs (Olympic Dam Aerodrome) - December 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) |
|---|---|---|---|---|---|---|---|---|---|
| 01/12/2025 | 7.8 | 0.0 | 25.9 | 13.8 | 67 | 28 | 7.29 | 30.28 | |
| 02/12/2025 | 7.1 | 0.0 | 28.6 | 13.0 | 69 | 20 | 3.17 | 31.49 | |
| 03/12/2025 | 8.5 | 0.0 | 34.7 | 14.2 | 55 | 8 | 3.28 | 30.74 | |
| 04/12/2025 | 11.7 | 0.0 | 39.9 | 18.9 | 26 | 5 | 4.83 | 31.45 | |
| 05/12/2025 | 14.5 | 0.0 | 44.0 | 22.6 | 26 | 4 | 6.56 | 28.48 | |
| 06/12/2025 | 9.1 | 0.0 | 34.2 | 25.0 | 55 | 17 | 6.35 | 15.82 | |
| 07/12/2025 | 9.3 | 0.0 | 30.2 | 15.2 | 56 | 8 | 5.42 | 31.16 | |
| 08/12/2025 | 7.4 | 0.0 | 35.3 | 12.0 | 26 | 5 | 2.01 | 31.79 | |
| 09/12/2025 | 9.5 | 0.0 | 38.6 | 16.9 | 32 | 4 | 3.37 | 29.41 | |
| 10/12/2025 | 10.3 | 0.0 | 40.7 | 21.4 | 34 | 5 | 3.92 | 27.41 | |
| 11/12/2025 | 13.4 | 0.0 | 41.7 | 25.7 | 24 | 7 | 6.26 | 27.82 | |
| 12/12/2025 | 16.1 | 0.0 | 43.9 | 26.8 | 23 | 6 | 7.94 | 30.60 | |
| 13/12/2025 | 12.5 | 0.0 | 35.8 | 24.3 | 40 | 10 | 7.72 | 27.90 | |
| 14/12/2025 | 11.0 | 0.0 | 33.5 | 17.3 | 58 | 11 | 6.88 | 31.78 | |
| 15/12/2025 | 10.0 | 0.0 | 31.4 | 16.6 | 65 | 9 | 6.28 | 31.78 | |
| 16/12/2025 | 9.8 | 0.0 | 33.7 | 17.5 | 46 | 10 | 4.68 | 31.80 | |
| 17/12/2025 | 10.6 | 0.0 | 40.3 | 15.6 | 31 | 9 | 3.92 | 31.83 | |
| 18/12/2025 | 11.5 | 0.0 | 40.2 | 25.9 | 43 | 18 | 5.13 | 31.69 | |
| Totals: | 190.1 | 0.0 |
