Evapotranspiration Calculations
Robe Airfield - 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 | | 0.0 | | 21.0 | | 88 | 57 | 6.25 | 31.51 |
| 02/01/2026 | 5.6 | 0.0 | | 23.5 | 11.0 | 93 | 49 | 4.85 | 31.69 |
| 03/01/2026 | 4.3 | 0.0 | | 20.8 | 13.1 | 93 | 64 | 6.23 | 25.65 |
| 04/01/2026 | 5.0 | 0.0 | | 21.3 | 13.8 | 89 | 57 | 6.17 | 29.07 |
| 05/01/2026 | 5.2 | 0.0 | | 23.4 | 9.4 | 94 | 54 | 3.85 | 31.43 |
| 06/01/2026 | 6.5 | 0.0 | | 32.0 | 10.1 | 95 | 25 | 1.95 | 31.37 |
| 07/01/2026 | 8.2 | 0.0 | | 36.1 | 14.5 | 74 | 21 | 3.79 | 26.39 |
| 08/01/2026 | 7.5 | 0.0 | | 31.5 | 17.3 | 89 | 37 | 5.85 | 27.08 |
| 09/01/2026 | 3.2 | 0.0 | | 21.0 | 16.5 | 88 | 67 | 4.56 | 14.35 |
| 10/01/2026 | 5.0 | 0.0 | | 20.3 | 15.0 | 80 | 60 | 6.45 | 28.21 |
| 11/01/2026 | 5.2 | 0.2 | | 19.5 | 12.3 | 79 | 48 | 5.74 | 29.65 |
| 12/01/2026 | 4.6 | 0.0 | | 20.0 | 9.5 | 100 | 55 | 5.40 | 30.29 |
| 13/01/2026 | 5.0 | 0.0 | | 20.6 | 14.2 | 81 | 59 | 6.65 | 27.85 |
| 14/01/2026 | 5.3 | 0.0 | | 22.8 | 12.1 | 89 | 53 | 5.90 | 29.83 |
| 15/01/2026 | 3.6 | 0.0 | | 21.0 | 15.1 | 90 | 70 | 8.63 | 18.66 |
| 16/01/2026 | 4.5 | 0.0 | | 21.2 | 15.0 | 86 | 67 | 8.63 | 26.57 |
| 17/01/2026 | 6.7 | 0.0 | | 28.1 | 13.3 | 89 | 40 | 5.20 | 29.84 |
| 18/01/2026 | 8.1 | 0.0 | | 34.6 | 17.3 | 71 | 23 | 4.49 | 24.43 |
| 19/01/2026 | 7.4 | 0.0 | | 33.7 | 20.7 | 72 | 34 | 4.27 | 24.51 |
| 20/01/2026 | 6.1 | 0.0 | | 27.1 | 16.3 | 89 | 54 | 5.97 | 29.54 |
| 21/01/2026 | 4.3 | 0.0 | | 21.0 | 15.9 | 91 | 59 | 7.78 | 21.48 |
| 22/01/2026 | 4.7 | 0.0 | | 20.1 | 7.3 | 90 | 49 | 5.12 | 28.61 |
| 23/01/2026 | 6.9 | 0.0 | | 30.7 | 8.7 | 85 | 21 | 3.12 | 29.24 |
| 24/01/2026 | | 0.0 | | | 13.6 | 100 | 13 | 6.11 | 25.40 |
| 25/01/2026 | 5.2 | 0.0 | | 22.7 | 14.8 | 90 | 55 | 5.92 | 28.93 |
| 26/01/2026 | 7.4 | 0.0 | | 34.2 | 11.2 | 93 | 21 | 3.16 | 29.02 |
| 27/01/2026 | 8.9 | 0.0 | | 36.7 | 17.9 | 90 | 19 | 4.67 | 27.78 |
| 28/01/2026 | 4.6 | 0.0 | | 23.9 | 16.6 | 96 | 58 | 6.16 | 22.64 |
| 29/01/2026 | 3.7 | 0.0 | | 24.8 | 15.9 | 79 | 57 | 4.38 | 11.67 |
| 30/01/2026 | 4.1 | 0.0 | | 24.0 | 15.2 | 90 | 44 | 5.22 | 12.68 |
| Totals: | 156.8 | 0.2 | | | | | | | |
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