Evapotranspiration Calculations
St Lawrence - 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 | 3.5 | 0.0 | 25.9 | 10.3 | 93 | 48 | 1.99 | 19.06 | |
| 02/09/2025 | 4.0 | 0.0 | 27.3 | 12.9 | 99 | 38 | 2.12 | 20.25 | |
| 03/09/2025 | 3.7 | 0.0 | 28.3 | 10.8 | 100 | 39 | 1.73 | 19.09 | |
| 04/09/2025 | 3.7 | 0.0 | 27.3 | 13.4 | 99 | 56 | 2.73 | 18.38 | |
| 05/09/2025 | 3.7 | 0.0 | 29.1 | 15.6 | 99 | 48 | 1.98 | 17.79 | |
| 06/09/2025 | 4.6 | 0.0 | 28.8 | 14.4 | 99 | 42 | 3.35 | 20.21 | |
| 07/09/2025 | 4.1 | 0.0 | 26.5 | 15.3 | 95 | 51 | 3.46 | 19.09 | |
| 08/09/2025 | 4.2 | 0.0 | 26.1 | 13.2 | 98 | 45 | 3.00 | 21.83 | |
| 09/09/2025 | 4.1 | 0.2 | 26.2 | 14.4 | 98 | 51 | 2.67 | 22.31 | |
| 10/09/2025 | 4.4 | 0.2 | 27.3 | 15.7 | 99 | 53 | 3.52 | 22.28 | |
| 11/09/2025 | 5.0 | 0.0 | 30.7 | 15.2 | 99 | 17 | 2.17 | 22.08 | |
| 12/09/2025 | 4.9 | 0.0 | 26.9 | 9.0 | 80 | 27 | 2.84 | 21.88 | |
| 13/09/2025 | 3.4 | 0.0 | 25.5 | 13.0 | 88 | 50 | 2.18 | 15.76 | |
| 14/09/2025 | 3.3 | 0.0 | 25.3 | 17.1 | 89 | 48 | 2.66 | 12.89 | |
| 15/09/2025 | 4.9 | 0.8 | 27.6 | 13.4 | 94 | 40 | 3.44 | 22.71 | |
| 16/09/2025 | 4.3 | 0.0 | 28.5 | 12.8 | 96 | 49 | 2.46 | 21.71 | |
| 17/09/2025 | 4.5 | 0.0 | 28.8 | 17.7 | 98 | 55 | 2.43 | 23.15 | |
| 18/09/2025 | 4.7 | 0.0 | 30.0 | 18.1 | 99 | 56 | 2.90 | 22.79 | |
| 19/09/2025 | 4.5 | 0.0 | 28.1 | 16.4 | 100 | 53 | 2.79 | 23.29 | |
| 20/09/2025 | 4.4 | 0.0 | 28.3 | 16.9 | 100 | 53 | 2.75 | 22.01 | |
| Totals: | 83.9 | 1.2 |
