Evapotranspiration Calculations
Williamson - 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 | 5.5 | 0.0 | | 26.8 | 12.7 | 86 | 28 | 3.39 | 24.34 |
| 02/10/2026 | 5.2 | 0.0 | | 27.5 | 12.5 | 87 | 34 | 2.76 | 25.06 |
| 03/10/2026 | 5.3 | 0.0 | | 28.7 | 10.3 | 96 | 30 | 2.52 | 25.79 |
| 04/10/2026 | 4.8 | 0.0 | | 29.1 | 11.8 | 97 | 41 | 2.01 | 24.35 |
| 05/10/2026 | 4.9 | 0.0 | | 29.3 | 13.0 | 97 | 46 | 2.06 | 25.56 |
| 06/10/2026 | 4.9 | 0.0 | | 28.7 | 13.7 | 97 | 49 | 2.06 | 25.76 |
| 07/10/2026 | 4.6 | 0.0 | | 29.4 | 16.4 | 96 | 50 | 2.67 | 21.26 |
| 08/10/2026 | 3.8 | 8.4 | | 27.9 | 17.8 | 98 | 59 | 2.83 | 16.72 |
| 09/10/2026 | 4.8 | 1.2 | | 28.3 | 16.6 | 98 | 57 | 2.41 | 25.00 |
| 10/10/2026 | 4.8 | 0.0 | | 29.2 | 17.5 | 98 | 51 | 2.32 | 23.40 |
| 11/10/2026 | 5.3 | 0.0 | | 30.0 | 20.5 | 97 | 49 | 2.45 | 25.41 |
| 12/10/2026 | 5.4 | 0.0 | | 30.4 | 20.5 | 97 | 50 | 2.69 | 25.46 |
| 13/10/2026 | 5.4 | 0.0 | | 30.2 | 22.3 | 95 | 57 | 3.38 | 24.55 |
| 14/10/2026 | 4.8 | 0.0 | | 30.6 | 20.6 | 97 | 57 | 2.22 | 22.60 |
| 15/10/2026 | 2.5 | 0.0 | | 25.2 | 20.9 | 95 | 73 | 3.23 | 9.68 |
| 16/10/2026 | 4.7 | 10.6 | | 27.0 | 19.4 | 86 | 52 | 3.74 | 20.17 |
| 17/10/2026 | 4.9 | 0.0 | | 27.2 | 19.7 | 93 | 48 | 4.18 | 20.30 |
| 18/10/2026 | 3.7 | 1.6 | | 26.1 | 19.1 | 93 | 58 | 3.59 | 14.81 |
| 19/10/2026 | 5.5 | 0.4 | | 28.6 | 19.7 | 88 | 48 | 3.50 | 24.60 |
| 20/10/2026 | 4.7 | 0.0 | | 28.9 | 17.4 | 97 | 52 | 2.35 | 22.74 |
| 21/10/2026 | 5.0 | 0.0 | | 29.2 | 16.4 | 98 | 52 | 2.36 | 25.10 |
| 22/10/2026 | 4.0 | 0.0 | | 27.4 | 20.1 | 97 | 63 | 3.08 | 18.33 |
| 23/10/2026 | 2.9 | 1.6 | | 27.2 | 22.2 | 98 | 69 | 3.11 | 11.21 |
| 24/10/2026 | 2.5 | 20.4 | | 27.6 | 22.0 | 98 | 82 | 2.84 | 10.85 |
| 25/10/2026 | 5.3 | 1.6 | | 29.4 | 23.2 | 94 | 63 | 3.68 | 24.95 |
| 26/10/2026 | 4.8 | 0.0 | | 30.5 | 23.3 | 96 | 63 | 2.77 | 21.97 |
| Totals: | 120.0 | 45.8 | | | | | | | |
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