Evapotranspiration Calculations
Grafton Airport - 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 | 4.0 | 0.0 | | 29.7 | 16.0 | 93 | 46 | 2.41 | 18.16 |
| 02/04/2026 | 3.3 | 0.0 | | 28.6 | 14.9 | 96 | 49 | 1.85 | 15.52 |
| 03/04/2026 | 3.4 | 0.8 | | 29.7 | 13.4 | 98 | 53 | 1.87 | 16.23 |
| 04/04/2026 | 4.2 | 0.0 | | 29.1 | 15.7 | 97 | 46 | 3.69 | 16.97 |
| 05/04/2026 | 4.8 | 0.2 | | 28.3 | 17.4 | 90 | 40 | 4.37 | 18.37 |
| 06/04/2026 | 3.8 | 0.0 | | 28.8 | 14.0 | 95 | 39 | 1.90 | 18.54 |
| 07/04/2026 | 3.9 | 0.0 | | 34.0 | 11.5 | 97 | 30 | 1.36 | 18.74 |
| 08/04/2026 | 4.5 | 0.0 | | 35.9 | 12.8 | 96 | 26 | 1.62 | 19.45 |
| 09/04/2026 | 4.4 | 0.0 | | 33.4 | 16.9 | 95 | 36 | 2.18 | 18.92 |
| 10/04/2026 | 4.5 | 0.0 | | 33.7 | 18.8 | 96 | 41 | 2.45 | 18.81 |
| 11/04/2026 | 5.1 | 0.0 | | 36.5 | 16.6 | 97 | 25 | 2.49 | 17.87 |
| 12/04/2026 | 4.2 | 0.0 | | 29.9 | 16.4 | 96 | 22 | 2.06 | 18.75 |
| 13/04/2026 | 3.3 | 0.0 | | 26.9 | 6.2 | 97 | 23 | 1.46 | 18.64 |
| 14/04/2026 | 3.1 | 0.0 | | 28.2 | 6.5 | 97 | 27 | 1.13 | 18.45 |
| 15/04/2026 | 3.7 | 0.0 | | 31.0 | 8.1 | 97 | 25 | 1.48 | 18.27 |
| 16/04/2026 | 3.5 | 0.0 | | 32.0 | 11.4 | 98 | 27 | 1.19 | 18.10 |
| 17/04/2026 | 3.3 | 0.0 | | 33.1 | 11.7 | 98 | 23 | 0.97 | 17.98 |
| 18/04/2026 | 3.8 | 0.0 | | 27.5 | 12.0 | 91 | 35 | 2.59 | 17.03 |
| 19/04/2026 | 3.6 | 0.0 | | 27.0 | 10.6 | 92 | 34 | 2.22 | 17.46 |
| 20/04/2026 | 3.8 | 0.0 | | 26.9 | 7.7 | 97 | 34 | 2.79 | 17.51 |
| 21/04/2026 | 3.8 | 0.0 | | 26.8 | 12.0 | 87 | 37 | 3.16 | 16.00 |
| 22/04/2026 | 3.4 | 0.0 | | 26.1 | 10.7 | 91 | 40 | 3.08 | 13.47 |
| 23/04/2026 | 3.8 | 0.0 | | 26.3 | 12.4 | 85 | 42 | 3.70 | 14.90 |
| 24/04/2026 | 2.7 | 0.2 | | 25.1 | 13.8 | 96 | 54 | 3.68 | 8.65 |
| 25/04/2026 | 3.5 | 5.6 | | 25.8 | 14.0 | 96 | 41 | 3.66 | 13.28 |
| 26/04/2026 | 2.2 | 0.2 | | 23.8 | 12.7 | 96 | 63 | 2.36 | 10.64 |
| Totals: | 97.6 | 7.0 | | | | | | | |
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