Evapotranspiration Calculations
St Helens Aerodrome - August 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) |
|---|---|---|---|---|---|---|---|---|---|
| 31/07/2026 | 1.6 | 0.0 | 15.3 | 2.3 | 96 | 48 | 3.26 | 9.88 | |
| 01/08/2026 | 1.3 | 0.2 | 15.2 | 3.0 | 96 | 53 | 2.62 | 9.66 | |
| 02/08/2026 | 1.3 | 0.2 | 15.7 | 4.2 | 98 | 50 | 2.14 | 9.80 | |
| 03/08/2026 | 1.2 | 0.0 | 14.1 | 4.2 | 98 | 61 | 2.70 | 7.41 | |
| 04/08/2026 | 1.0 | 0.4 | 13.4 | 3.3 | 97 | 58 | 1.86 | 8.94 | |
| 05/08/2026 | 1.2 | 1.0 | 15.1 | 4.4 | 97 | 64 | 2.76 | 9.68 | |
| 06/08/2026 | 1.6 | 0.0 | 16.3 | 4.3 | 94 | 43 | 2.65 | 9.43 | |
| Totals: | 9.2 | 1.8 |
