Evapotranspiration Calculations
Roxby Downs (Olympic Dam Aerodrome) - January 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) |
|---|---|---|---|---|---|---|---|---|---|
| 01/01/2026 | 9.9 | 0.0 | 37.1 | 17.5 | 56 | 9 | 4.10 | 31.59 | |
| 02/01/2026 | 10.1 | 0.0 | 39.2 | 17.9 | 36 | 8 | 3.69 | 31.52 | |
| 03/01/2026 | 10.5 | 0.0 | 38.3 | 23.6 | 36 | 9 | 4.54 | 28.18 | |
| 04/01/2026 | 10.9 | 0.0 | 34.6 | 18.8 | 61 | 9 | 6.26 | 31.46 | |
| 05/01/2026 | 10.2 | 0.0 | 37.6 | 18.2 | 63 | 11 | 4.50 | 31.45 | |
| 06/01/2026 | 10.4 | 0.0 | 41.8 | 21.0 | 30 | 6 | 3.53 | 31.38 | |
| 07/01/2026 | 10.8 | 0.0 | 45.3 | 20.7 | 18 | 7 | 3.34 | 31.39 | |
| 08/01/2026 | 13.9 | 0.0 | 45.7 | 31.9 | 19 | 8 | 5.54 | 31.39 | |
| 09/01/2026 | 16.0 | 0.0 | 47.4 | 29.4 | 24 | 9 | 7.13 | 29.92 | |
| 10/01/2026 | 11.4 | 0.0 | 31.9 | 20.2 | 54 | 14 | 8.73 | 30.84 | |
| 11/01/2026 | 10.6 | 0.0 | 32.4 | 16.7 | 60 | 10 | 6.95 | 31.10 | |
| 12/01/2026 | 0.0 | 17.5 | 57 | 9 | 4.21 | 31.02 | |||
| 13/01/2026 | 100 | 7 | 3.86 | 31.04 | |||||
| 14/01/2026 | 41.3 | 44 | 10 | 4.03 | 30.71 | ||||
| Totals: | 124.7 | 0.0 |
