Evapotranspiration Calculations
St Helens Aerodrome - April 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) |
|---|---|---|---|---|---|---|---|---|---|
| 28/03/2026 | 3.2 | 0.0 | 20.9 | 8.2 | 84 | 48 | 3.94 | 16.23 | |
| 29/03/2026 | 3.1 | 0.0 | 24.2 | 9.2 | 95 | 46 | 2.76 | 16.13 | |
| 30/03/2026 | 2.6 | 0.0 | 23.7 | 11.4 | 91 | 55 | 2.56 | 12.10 | |
| 31/03/2026 | 3.8 | 0.0 | 26.4 | 12.3 | 91 | 37 | 3.26 | 16.20 | |
| 01/04/2026 | 3.2 | 0.0 | 26.0 | 11.1 | 96 | 43 | 3.13 | 11.56 | |
| 02/04/2026 | 3.5 | 0.0 | 23.1 | 11.3 | 92 | 36 | 3.61 | 15.47 | |
| 03/04/2026 | 3.2 | 0.0 | 18.7 | 12.3 | 74 | 26 | 3.12 | 14.34 | |
| Totals: | 22.6 | 0.0 |
