Evapotranspiration Calculations
Derby Aero - 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 | 6.3 | 0.0 | 33.4 | 18.9 | 78 | 32 | 3.65 | 23.27 | |
| 02/09/2025 | 5.8 | 0.0 | 35.2 | 17.3 | 88 | 22 | 2.39 | 23.26 | |
| 03/09/2025 | 7.4 | 0.0 | 37.1 | 14.8 | 65 | 10 | 3.27 | 23.36 | |
| 04/09/2025 | 7.0 | 0.0 | 35.1 | 12.8 | 70 | 9 | 3.19 | 23.38 | |
| 05/09/2025 | 7.2 | 0.0 | 35.0 | 13.9 | 89 | 10 | 3.53 | 23.48 | |
| 06/09/2025 | 6.5 | 0.0 | 34.7 | 16.8 | 98 | 15 | 3.07 | 23.67 | |
| 07/09/2025 | 6.4 | 0.0 | 33.6 | 17.8 | 95 | 33 | 4.02 | 23.64 | |
| 08/09/2025 | 6.4 | 0.0 | 34.8 | 19.3 | 78 | 34 | 3.37 | 23.36 | |
| 09/09/2025 | 6.8 | 0.0 | 36.5 | 23.2 | 69 | 29 | 3.26 | 23.17 | |
| 10/09/2025 | 9.0 | 0.0 | 37.3 | 19.6 | 47 | 16 | 4.86 | 23.32 | |
| 11/09/2025 | 10.2 | 0.0 | 36.9 | 23.4 | 25 | 11 | 5.48 | 23.66 | |
| 12/09/2025 | 9.1 | 0.0 | 38.6 | 19.2 | 75 | 15 | 4.94 | 24.25 | |
| 13/09/2025 | 6.7 | 0.0 | 34.4 | 20.1 | 78 | 32 | 3.61 | 24.35 | |
| 14/09/2025 | 7.7 | 0.0 | 35.4 | 18.7 | 84 | 22 | 4.46 | 24.59 | |
| 15/09/2025 | 7.2 | 0.0 | 35.4 | 17.2 | 79 | 18 | 3.49 | 24.83 | |
| 16/09/2025 | 7.0 | 0.0 | 35.3 | 17.6 | 93 | 16 | 3.28 | 24.82 | |
| 17/09/2025 | 6.8 | 0.0 | 35.9 | 17.4 | 91 | 19 | 3.05 | 24.89 | |
| 18/09/2025 | 7.3 | 0.0 | 36.6 | 18.7 | 83 | 18 | 3.35 | 24.95 | |
| 19/09/2025 | 7.7 | 0.0 | 37.9 | 18.6 | 69 | 24 | 3.52 | 25.04 | |
| 20/09/2025 | 8.0 | 0.0 | 39.8 | 20.4 | 69 | 15 | 3.19 | 25.24 | |
| Totals: | 146.5 | 0.0 |
