Evapotranspiration Calculations
Ballina Airport - October 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) |
|---|---|---|---|---|---|---|---|---|---|
| 01/10/2026 | 4.0 | 0.0 | 23.1 | 9.1 | 98 | 52 | 3.29 | 23.20 | |
| 02/10/2026 | 4.2 | 0.0 | 23.7 | 10.3 | 98 | 54 | 3.81 | 24.39 | |
| 03/10/2026 | 4.0 | 0.0 | 23.7 | 11.0 | 98 | 56 | 4.40 | 21.54 | |
| 04/10/2026 | 4.4 | 0.0 | 25.3 | 15.6 | 93 | 60 | 5.14 | 22.28 | |
| 05/10/2026 | 3.6 | 0.0 | 26.1 | 19.0 | 88 | 59 | 4.50 | 12.50 | |
| 06/10/2026 | 4.7 | 3.4 | 28.8 | 17.6 | 93 | 48 | 3.75 | 19.13 | |
| 07/10/2026 | 4.0 | 0.0 | 24.1 | 17.0 | 94 | 65 | 6.80 | 20.26 | |
| 08/10/2026 | 3.0 | 6.0 | 21.3 | 14.0 | 97 | 68 | 3.34 | 16.36 | |
| 09/10/2026 | 4.7 | 0.0 | 26.2 | 15.9 | 91 | 55 | 3.72 | 23.42 | |
| 10/10/2026 | 4.1 | 0.0 | 28.1 | 18.5 | 96 | 48 | 3.66 | 15.18 | |
| 11/10/2026 | 5.4 | 0.0 | 29.7 | 14.7 | 98 | 47 | 3.46 | 25.70 | |
| 12/10/2026 | 5.3 | 0.0 | 29.6 | 17.5 | 97 | 60 | 4.59 | 25.84 | |
| 13/10/2026 | 2.6 | 0.0 | 27.1 | 20.5 | 96 | 65 | 3.25 | 8.65 | |
| 14/10/2026 | 2.9 | 2.4 | 21.4 | 17.7 | 95 | 70 | 5.86 | 13.58 | |
| 15/10/2026 | 3.5 | 7.8 | 21.6 | 15.3 | 94 | 51 | 4.66 | 13.94 | |
| 16/10/2026 | 2.8 | 6.8 | 21.4 | 14.2 | 95 | 69 | 3.15 | 14.95 | |
| 17/10/2026 | 4.2 | 9.8 | 22.7 | 15.1 | 94 | 54 | 4.15 | 21.74 | |
| 18/10/2026 | 3.8 | 1.2 | 22.9 | 14.0 | 93 | 57 | 4.15 | 18.84 | |
| 19/10/2026 | 1.9 | 22.6 | 19.8 | 15.7 | 97 | 74 | 2.96 | 8.51 | |
| 20/10/2026 | 2.6 | 35.8 | 22.3 | 15.8 | 97 | 78 | 2.40 | 14.37 | |
| 21/10/2026 | 3.5 | 7.0 | 23.7 | 15.7 | 98 | 74 | 3.26 | 20.13 | |
| 22/10/2026 | 2.4 | 54.2 | 21.3 | 18.4 | 96 | 76 | 6.48 | 10.04 | |
| 23/10/2026 | 2.9 | 41.4 | 23.9 | 18.2 | 96 | 81 | 4.86 | 15.79 | |
| 24/10/2026 | 2.8 | 7.6 | 23.9 | 18.0 | 96 | 81 | 4.92 | 14.52 | |
| 25/10/2026 | 3.1 | 4.2 | 25.2 | 19.9 | 92 | 79 | 6.17 | 14.21 | |
| 26/10/2026 | 6.0 | 2.8 | 32.2 | 20.1 | 96 | 49 | 3.72 | 25.16 | |
| Totals: | 96.4 | 213.0 |
