Evapotranspiration Calculations
Grampians (Mount William) - 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 | 1.6 | 2.8 | | 11.3 | 9.7 | 99 | 62 | 6.96 | 3.90 |
| 02/10/2026 | 0.6 | 34.2 | | 6.8 | 4.7 | 100 | 99 | 10.81 | 9.66 |
| 03/10/2026 | 0.6 | 59.8 | | 8.4 | 4.5 | 100 | 100 | 9.50 | 8.12 |
| 04/10/2026 | 2.8 | 18.4 | | 10.9 | 2.2 | 100 | 46 | 5.73 | 21.27 |
| 05/10/2026 | 2.1 | 0.0 | | 10.4 | 5.0 | 99 | 57 | 5.09 | 14.25 |
| 06/10/2026 | 1.6 | 0.2 | | 8.3 | 4.0 | 100 | 69 | 8.45 | 12.69 |
| 07/10/2026 | 4.3 | 2.2 | | 13.9 | 0.1 | 99 | 5 | 5.69 | 22.96 |
| 08/10/2026 | 5.0 | 0.0 | | 13.1 | 1.2 | 70 | 6 | 8.06 | 23.20 |
| 09/10/2026 | 3.9 | 0.0 | | 15.6 | 7.5 | 99 | 39 | 12.13 | 17.33 |
| 10/10/2026 | 1.8 | 0.2 | | 10.6 | 4.0 | 100 | 74 | 8.40 | 15.12 |
| 11/10/2026 | 3.7 | 0.0 | | 15.8 | 4.4 | 99 | 47 | 8.91 | 23.23 |
| 12/10/2026 | 2.1 | 1.4 | | 10.2 | 6.6 | 99 | 68 | 6.68 | 17.38 |
| 13/10/2026 | 1.6 | 0.2 | | 6.1 | 1.8 | 100 | 71 | 7.58 | 15.95 |
| 14/10/2026 | 1.9 | 0.2 | | 7.4 | -0.2 | 99 | 69 | 7.67 | 19.38 |
| 15/10/2026 | 2.2 | 0.2 | | 10.0 | 0.4 | 100 | 62 | 8.92 | 17.25 |
| 16/10/2026 | 2.7 | 0.0 | | 13.9 | 4.9 | 95 | 68 | 8.06 | 20.31 |
| 17/10/2026 | 3.8 | 0.0 | | 16.2 | 6.5 | 85 | 53 | 8.80 | 22.33 |
| 18/10/2026 | 4.4 | 0.0 | | 17.7 | 8.6 | 73 | 53 | 7.97 | 23.69 |
| 19/10/2026 | 4.4 | 0.0 | | 17.7 | 11.2 | 76 | 50 | 8.74 | 20.63 |
| 20/10/2026 | 5.1 | 0.0 | | 19.7 | 12.3 | 73 | 49 | 8.59 | 23.53 |
| 21/10/2026 | 4.3 | 0.0 | | 21.0 | 12.1 | 88 | 52 | 4.71 | 22.83 |
| 22/10/2026 | 5.7 | 0.0 | | 21.4 | 13.1 | 78 | 40 | 7.78 | 25.50 |
| 23/10/2026 | 5.1 | 0.0 | | 21.5 | 12.9 | 88 | 41 | 9.03 | 19.03 |
| 24/10/2026 | 3.2 | 2.8 | | 17.3 | 11.9 | 97 | 56 | 6.58 | 15.85 |
| 25/10/2026 | 0.9 | 15.4 | | 6.6 | 6.3 | 100 | 88 | 8.69 | 6.92 |
| 26/10/2026 | 1.5 | 3.8 | | 6.0 | 0.0 | 100 | 82 | 4.77 | 15.95 |
| Totals: | 76.9 | 141.8 | | | | | | | |
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