Evapotranspiration Calculations
Perisher Valley - 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 | 1.1 | 24.6 | 1.8 | 0.1 | 100 | 80 | 5.42 | 9.93 | |
| 02/12/2025 | 3.1 | 15.2 | 8.9 | -2.5 | 96 | 51 | 3.52 | 26.86 | |
| 03/12/2025 | 4.6 | 0.2 | 15.9 | 0.7 | 91 | 42 | 5.26 | 31.46 | |
| 04/12/2025 | 6.1 | 0.0 | 19.0 | 8.7 | 50 | 25 | 4.71 | 30.05 | |
| 05/12/2025 | 6.6 | 0.0 | 23.1 | 11.1 | 29 | 15 | 3.02 | 30.74 | |
| 06/12/2025 | 3.9 | 0.2 | 17.9 | 12.4 | 92 | 21 | 5.41 | 9.76 | |
| 07/12/2025 | 4.6 | 15.8 | 13.2 | 2.5 | 91 | 28 | 4.16 | 31.71 | |
| 08/12/2025 | 5.7 | 0.0 | 15.9 | 2.1 | 51 | 21 | 7.92 | 26.18 | |
| 09/12/2025 | 5.3 | 0.0 | 19.7 | 6.5 | 100 | 30 | 3.04 | 31.04 | |
| 10/12/2025 | 4.6 | 0.0 | 19.7 | 3.6 | 100 | 28 | 2.15 | 26.66 | |
| 11/12/2025 | 3.4 | 5.0 | 17.7 | 6.7 | 100 | 51 | 2.62 | 18.96 | |
| 12/12/2025 | 4.4 | 0.0 | 19.2 | 5.0 | 100 | 42 | 2.90 | 26.10 | |
| 13/12/2025 | 3.2 | 0.0 | 17.0 | 4.8 | 100 | 58 | 3.72 | 18.15 | |
| 14/12/2025 | 3.7 | 0.0 | 13.7 | 7.8 | 100 | 42 | 7.08 | 21.80 | |
| 15/12/2025 | 5.0 | 0.0 | 17.2 | -1.7 | 96 | 13 | 2.60 | 31.81 | |
| 16/12/2025 | 5.0 | 0.0 | 20.3 | -1.3 | 100 | 28 | 1.95 | 32.15 | |
| 17/12/2025 | 6.3 | 0.0 | 24.2 | 2.6 | 100 | 28 | 4.37 | 32.17 | |
| 18/12/2025 | 7.0 | 0.0 | 24.8 | 9.5 | 70 | 20 | 4.00 | 32.12 | |
| Totals: | 83.6 | 61.0 |
