Evapotranspiration Calculations
Grafton Airport - August 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) |
| 01/08/2026 | 2.2 | 0.0 | | 21.0 | 4.4 | 96 | 51 | 2.29 | 12.92 |
| 02/08/2026 | 1.8 | 0.0 | | 21.9 | 9.0 | 97 | 51 | 1.00 | 12.42 |
| 03/08/2026 | 2.0 | 0.0 | | 22.8 | 4.3 | 98 | 43 | 1.06 | 14.97 |
| 04/08/2026 | 2.0 | 0.0 | | 24.9 | 4.4 | 98 | 35 | 0.88 | 13.33 |
| 05/08/2026 | 2.6 | 0.0 | | 24.7 | 3.5 | 97 | 30 | 1.62 | 15.44 |
| 06/08/2026 | 2.0 | 0.0 | | 22.3 | 6.3 | 97 | 51 | 1.21 | 14.02 |
| 07/08/2026 | 2.0 | 0.0 | | 22.4 | 2.8 | 98 | 34 | 0.85 | 15.56 |
| 08/08/2026 | 2.1 | 0.0 | | 22.5 | 4.0 | 98 | 48 | 1.32 | 14.83 |
| 09/08/2026 | 1.3 | 0.0 | | 19.3 | 6.9 | 98 | 64 | 0.43 | 9.88 |
| 10/08/2026 | | 0.0 | | | 9.9 | 98 | 27 | 2.40 | 11.73 |
| 11/08/2026 | 3.2 | 1.4 | | 24.9 | 8.5 | 94 | 27 | 2.32 | 16.18 |
| 12/08/2026 | 1.8 | 0.0 | | 20.6 | 4.1 | 96 | 41 | 1.28 | 9.97 |
| 13/08/2026 | 2.4 | 0.0 | | 23.1 | 4.0 | 96 | 35 | 1.26 | 16.35 |
| 14/08/2026 | 2.4 | 0.0 | | 23.0 | 3.4 | 98 | 42 | 1.37 | 15.78 |
| 15/08/2026 | 2.6 | 0.0 | | 21.3 | 6.9 | 97 | 48 | 3.43 | 11.86 |
| 16/08/2026 | 2.5 | 0.2 | | 22.5 | 6.8 | 96 | 47 | 2.08 | 13.43 |
| 17/08/2026 | 2.1 | 4.2 | | 20.4 | 11.1 | 97 | 64 | 2.44 | 12.87 |
| 18/08/2026 | | 6.8 | | | 9.6 | 98 | 57 | 1.99 | 14.00 |
| 19/08/2026 | 2.5 | 4.2 | | 22.0 | 9.5 | 98 | 48 | 1.82 | 14.80 |
| 20/08/2026 | 2.3 | 1.8 | | 22.7 | 8.3 | 98 | 49 | 1.31 | 14.31 |
| 21/08/2026 | 2.6 | 0.0 | | 24.2 | 8.5 | 98 | 40 | 1.32 | 16.70 |
| 22/08/2026 | 2.2 | 0.0 | | 24.3 | 11.0 | 96 | 44 | 1.03 | 12.81 |
| 23/08/2026 | 3.2 | 0.0 | | 24.0 | 10.5 | 95 | 46 | 3.05 | 15.60 |
| 24/08/2026 | 2.3 | 0.0 | | 24.6 | 9.4 | 98 | 52 | 0.91 | 14.96 |
| 25/08/2026 | 2.9 | 0.0 | | 26.7 | 9.8 | 98 | 48 | 1.75 | 16.03 |
| 26/08/2026 | 2.4 | 11.6 | | 25.5 | 14.8 | 97 | 53 | 1.57 | 11.88 |
| Totals: | 55.4 | 30.2 | | | | | | | |
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