Evapotranspiration Calculations
Rolleston Airport - December 2025 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) |
| 01/12/2025 | | 0.0 | | | 17.4 | 59 | 9 | 2.89 | 30.68 |
| 02/12/2025 | 8.6 | 0.0 | | 29.9 | 19.4 | 42 | 13 | 4.31 | 30.67 |
| 03/12/2025 | 7.6 | 0.0 | | 32.8 | 11.9 | 55 | 9 | 2.70 | 30.75 |
| 04/12/2025 | 7.4 | 0.0 | | 32.9 | 15.8 | 81 | 22 | 2.96 | 30.78 |
| 05/12/2025 | 7.4 | 0.0 | | 34.7 | 16.2 | 67 | 18 | 2.33 | 30.90 |
| 06/12/2025 | 7.2 | 0.0 | | 36.0 | 16.3 | 63 | 18 | 1.97 | 30.84 |
| 07/12/2025 | 7.7 | 0.0 | | 37.1 | 19.8 | 84 | 21 | 2.36 | 30.86 |
| 08/12/2025 | 7.9 | 0.0 | | 37.0 | 22.4 | 69 | 27 | 2.64 | 30.17 |
| 09/12/2025 | 7.7 | 0.2 | | 36.8 | 22.4 | 79 | 26 | 2.51 | 30.30 |
| 10/12/2025 | 8.1 | 0.0 | | 37.5 | 21.1 | 67 | 20 | 2.65 | 30.57 |
| 11/12/2025 | 7.7 | 0.0 | | 35.7 | 21.9 | 74 | 20 | 2.94 | 28.05 |
| 12/12/2025 | 6.1 | 0.0 | | 34.4 | 22.1 | 73 | 28 | 1.85 | 24.12 |
| 13/12/2025 | 7.3 | 0.0 | | 36.6 | 21.1 | 78 | 21 | 2.21 | 28.82 |
| 14/12/2025 | 7.4 | 0.0 | | 38.0 | 24.5 | 93 | 25 | 3.51 | 23.08 |
| 15/12/2025 | 6.0 | 8.6 | | 34.3 | 21.7 | 100 | 42 | 2.70 | 23.82 |
| 16/12/2025 | 3.0 | 51.6 | | 29.9 | 19.4 | 100 | 58 | 2.29 | 10.00 |
| 17/12/2025 | 6.0 | 6.6 | | 31.8 | 20.0 | 100 | 46 | 3.62 | 25.12 |
| 18/12/2025 | 7.3 | 0.2 | | 33.7 | 18.3 | 98 | 25 | 2.67 | 30.93 |
| Totals: | 120.4 | 67.2 | | | | | | | |
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