Evapotranspiration Calculations
Perisher Valley - September 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) |
|---|---|---|---|---|---|---|---|---|---|
| 01/09/2025 | 1.3 | 0.0 | 3.8 | -4.7 | 96 | 56 | 1.84 | 13.80 | |
| 02/09/2025 | 1.1 | 0.0 | 1.3 | -2.6 | 100 | 71 | 6.32 | 13.20 | |
| 03/09/2025 | 1.2 | 0.8 | 3.4 | -1.9 | 100 | 65 | 9.88 | 11.55 | |
| 04/09/2025 | 0.9 | 1.0 | 1.4 | 0.3 | 100 | 73 | 6.04 | 6.88 | |
| 05/09/2025 | 1.8 | 17.8 | 6.0 | -8.2 | 82 | 18 | 1.96 | 15.43 | |
| 06/09/2025 | 2.5 | 0.0 | 7.8 | -6.9 | 68 | 35 | 5.68 | 16.27 | |
| 07/09/2025 | 2.1 | 0.0 | 10.1 | 2.6 | 93 | 58 | 5.76 | 16.15 | |
| 08/09/2025 | 1.8 | 20.4 | 7.0 | 4.8 | 100 | 55 | 5.70 | 14.19 | |
| 09/09/2025 | 2.6 | 0.0 | 5.5 | 1.1 | 80 | 29 | 6.57 | 18.43 | |
| 10/09/2025 | 1.1 | 0.0 | 4.7 | -3.6 | 100 | 63 | 1.53 | 9.21 | |
| 11/09/2025 | 1.6 | 21.8 | 4.5 | -2.4 | 100 | 60 | 3.02 | 17.16 | |
| 12/09/2025 | 1.9 | 0.2 | 5.3 | -7.5 | 93 | 33 | 2.16 | 19.02 | |
| 13/09/2025 | 1.9 | 0.0 | 6.8 | -4.6 | 97 | 39 | 1.57 | 19.19 | |
| 14/09/2025 | 1.8 | 0.0 | 4.5 | -1.9 | 91 | 62 | 8.96 | 19.38 | |
| 15/09/2025 | 2.5 | 0.0 | 8.7 | 1.8 | 90 | 52 | 7.68 | 19.51 | |
| 16/09/2025 | 1.5 | 11.8 | 5.8 | 4.4 | 100 | 51 | 6.56 | 7.02 | |
| 17/09/2025 | 1.6 | 90.8 | 2.0 | -1.3 | 100 | 56 | 7.23 | 18.89 | |
| 18/09/2025 | 2.2 | 0.4 | 6.0 | -6.4 | 85 | 42 | 4.26 | 20.00 | |
| 19/09/2025 | 2.4 | 0.0 | 8.8 | 0.8 | 100 | 31 | 4.75 | 15.06 | |
| 20/09/2025 | 1.1 | 26.0 | -0.1 | -2.1 | 100 | 73 | 8.39 | 16.51 | |
| Totals: | 34.9 | 191.0 |
