Evapotranspiration Calculations
Gunnedah 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 | 0.0 | 5.9 | 92 | 45 | 2.79 | 18.52 | |||
| 02/09/2026 | 3.5 | 0.2 | 24.8 | 5.7 | 97 | 41 | 2.96 | 17.12 | |
| 03/09/2026 | 4.9 | 0.0 | 27.3 | 10.2 | 93 | 34 | 4.71 | 18.99 | |
| 04/09/2026 | 3.0 | 0.0 | 23.7 | 2.5 | 98 | 33 | 1.35 | 19.19 | |
| 05/09/2026 | 4.5 | 0.0 | 28.6 | 5.7 | 93 | 31 | 3.38 | 16.25 | |
| 06/09/2026 | 4.2 | 0.0 | 23.7 | 10.8 | 88 | 28 | 3.36 | 19.48 | |
| 07/09/2026 | 4.2 | 0.0 | 24.2 | 3.4 | 96 | 29 | 3.37 | 19.58 | |
| 08/09/2026 | 4.2 | 0.0 | 21.8 | 4.0 | 92 | 36 | 4.84 | 19.70 | |
| 09/09/2026 | 4.3 | 0.0 | 24.0 | 3.1 | 97 | 34 | 4.22 | 18.40 | |
| 10/09/2026 | 5.3 | 0.0 | 22.0 | 9.4 | 71 | 30 | 6.59 | 19.92 | |
| 11/09/2026 | 4.0 | 0.0 | 23.1 | 3.4 | 94 | 39 | 3.90 | 20.04 | |
| 12/09/2026 | 4.0 | 0.0 | 24.1 | 7.5 | 89 | 30 | 2.66 | 20.16 | |
| 13/09/2026 | 3.7 | 0.0 | 25.1 | 7.3 | 90 | 30 | 1.98 | 18.91 | |
| 14/09/2026 | 4.0 | 0.0 | 26.6 | 5.5 | 95 | 29 | 2.27 | 19.79 | |
| 15/09/2026 | 5.4 | 0.0 | 28.7 | 8.4 | 85 | 28 | 4.08 | 19.77 | |
| Totals: | 59.2 | 0.2 |
