Evapotranspiration Calculations
Grafton Airport - January 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) |
|---|---|---|---|---|---|---|---|---|---|
| 01/01/2026 | 5.1 | 0.0 | 29.9 | 17.2 | 95 | 51 | 3.00 | 21.91 | |
| 02/01/2026 | 3.3 | 0.6 | 25.3 | 19.4 | 92 | 55 | 2.79 | 12.53 | |
| 03/01/2026 | 4.8 | 0.0 | 30.7 | 18.4 | 85 | 53 | 1.60 | 22.04 | |
| 04/01/2026 | 5.1 | 0.0 | 32.2 | 17.9 | 95 | 49 | 2.17 | 21.90 | |
| 05/01/2026 | 4.7 | 14.4 | 31.8 | 18.1 | 97 | 50 | 1.84 | 20.14 | |
| 06/01/2026 | 6.0 | 0.2 | 31.3 | 18.7 | 96 | 51 | 2.23 | 28.91 | |
| 07/01/2026 | 6.1 | 0.0 | 31.4 | 17.6 | 97 | 46 | 1.92 | 29.79 | |
| 08/01/2026 | 6.1 | 0.0 | 32.0 | 16.4 | 97 | 43 | 1.81 | 29.93 | |
| 09/01/2026 | 6.4 | 0.0 | 32.1 | 16.4 | 97 | 41 | 2.63 | 29.07 | |
| Totals: | 47.6 | 15.2 |
