Evapotranspiration Calculations
Grafton Airport - September 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) |
|---|---|---|---|---|---|---|---|---|---|
| 01/09/2026 | 2.9 | 0.0 | 25.3 | 6.5 | 98 | 47 | 1.26 | 18.91 | |
| 02/09/2026 | 2.9 | 0.0 | 28.9 | 8.4 | 98 | 33 | 0.71 | 18.15 | |
| 03/09/2026 | 4.0 | 0.0 | 33.1 | 9.8 | 98 | 20 | 1.50 | 18.32 | |
| 04/09/2026 | 3.7 | 0.0 | 27.0 | 11.0 | 97 | 42 | 2.14 | 19.48 | |
| 05/09/2026 | 3.5 | 0.0 | 30.9 | 9.9 | 98 | 33 | 1.15 | 19.30 | |
| 06/09/2026 | 4.6 | 0.0 | 31.3 | 11.7 | 97 | 31 | 2.55 | 19.76 | |
| 07/09/2026 | 3.3 | 0.0 | 25.5 | 7.5 | 96 | 39 | 1.62 | 19.49 | |
| 08/09/2026 | 3.6 | 0.0 | 23.7 | 11.0 | 97 | 43 | 3.67 | 16.79 | |
| 09/09/2026 | 3.5 | 0.0 | 25.6 | 6.3 | 98 | 41 | 1.87 | 19.65 | |
| 10/09/2026 | 4.2 | 0.0 | 22.2 | 14.8 | 84 | 40 | 4.48 | 18.82 | |
| 11/09/2026 | 3.2 | 0.0 | 22.8 | 10.1 | 96 | 53 | 2.79 | 17.44 | |
| 12/09/2026 | 3.3 | 0.6 | 23.8 | 9.5 | 97 | 48 | 2.46 | 17.54 | |
| 13/09/2026 | 3.6 | 0.2 | 24.4 | 9.5 | 96 | 40 | 1.89 | 20.84 | |
| 14/09/2026 | 3.6 | 0.0 | 25.7 | 5.8 | 97 | 37 | 1.73 | 21.10 | |
| 15/09/2026 | 3.8 | 0.0 | 29.0 | 8.6 | 98 | 37 | 1.34 | 21.20 | |
| Totals: | 53.7 | 0.8 |
