Evapotranspiration Calculations
St Lawrence - 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 | 5.2 | 0.0 | | 27.6 | 10.4 | 95 | 33 | 2.99 | 24.53 |
| 02/10/2026 | 5.4 | 0.0 | | 27.6 | 12.9 | 88 | 40 | 3.51 | 25.57 |
| 03/10/2026 | 5.3 | 0.0 | | 28.5 | 11.1 | 96 | 35 | 2.69 | 25.70 |
| 04/10/2026 | 5.0 | 0.0 | | 28.9 | 12.5 | 97 | 45 | 2.64 | 25.17 |
| 05/10/2026 | 5.1 | 0.0 | | 29.1 | 14.7 | 99 | 49 | 2.70 | 25.72 |
| 06/10/2026 | 5.1 | 0.0 | | 28.4 | 16.8 | 98 | 49 | 2.99 | 25.55 |
| 07/10/2026 | 4.0 | 0.0 | | 28.0 | 18.2 | 98 | 52 | 3.05 | 16.95 |
| 08/10/2026 | 4.5 | 14.4 | | 28.1 | 16.7 | 99 | 60 | 3.01 | 22.83 |
| 09/10/2026 | 5.1 | 0.2 | | 28.2 | 18.8 | 96 | 58 | 3.76 | 25.63 |
| 10/10/2026 | 4.8 | 0.0 | | 28.5 | 18.0 | 99 | 60 | 3.31 | 24.34 |
| 11/10/2026 | 5.4 | 0.0 | | 29.5 | 20.6 | 95 | 57 | 3.04 | 26.25 |
| 12/10/2026 | 5.5 | 0.0 | | 29.9 | 22.1 | 92 | 56 | 3.55 | 25.46 |
| 13/10/2026 | 5.5 | 0.0 | | 29.8 | 23.2 | 93 | 65 | 4.78 | 25.98 |
| 14/10/2026 | 5.1 | 0.0 | | 30.2 | 20.4 | 98 | 62 | 3.29 | 24.39 |
| 15/10/2026 | 2.0 | 0.2 | | 25.4 | 22.5 | 99 | 71 | 2.98 | 6.51 |
| 16/10/2026 | 2.8 | 72.4 | | 25.6 | 19.1 | 99 | 66 | 2.55 | 11.97 |
| 17/10/2026 | 3.1 | 4.6 | | 25.4 | 18.8 | 95 | 62 | 3.23 | 12.55 |
| 18/10/2026 | 3.0 | 5.4 | | 25.3 | 19.0 | 98 | 65 | 2.67 | 13.38 |
| 19/10/2026 | 5.1 | 3.2 | | 27.9 | 17.8 | 98 | 54 | 3.51 | 25.28 |
| 20/10/2026 | 5.1 | 0.4 | | 28.1 | 18.9 | 96 | 58 | 3.51 | 24.84 |
| 21/10/2026 | 5.4 | 0.0 | | 28.6 | 19.0 | 97 | 56 | 4.01 | 26.58 |
| 22/10/2026 | 5.4 | 0.0 | | 28.7 | 22.9 | 88 | 63 | 5.18 | 24.23 |
| 23/10/2026 | 2.9 | 9.8 | | 26.2 | 22.8 | 98 | 82 | 5.09 | 14.39 |
| 24/10/2026 | 2.1 | 81.8 | | 26.9 | 20.9 | 99 | 87 | 3.42 | 9.75 |
| 25/10/2026 | 5.2 | 24.4 | | 28.3 | 22.3 | 96 | 72 | 5.18 | 27.25 |
| 26/10/2026 | 4.5 | 0.0 | | 29.0 | 21.6 | 99 | 72 | 3.18 | 22.35 |
| Totals: | 117.6 | 216.8 | | | | | | | |
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