Evapotranspiration Calculations
St Helens Aerodrome - 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) |
|---|---|---|---|---|---|---|---|---|---|
| 30/09/2026 | 4.6 | 0.0 | 23.8 | 12.6 | 66 | 38 | 4.21 | 18.61 | |
| 01/10/2026 | 3.3 | 0.8 | 22.4 | 13.7 | 90 | 44 | 3.45 | 13.30 | |
| 02/10/2026 | 2.4 | 0.0 | 15.6 | 10.9 | 88 | 62 | 4.46 | 12.38 | |
| 03/10/2026 | 2.9 | 0.0 | 15.6 | 12.5 | 79 | 56 | 5.73 | 11.55 | |
| 04/10/2026 | 1.7 | 0.8 | 14.8 | 9.9 | 95 | 63 | 2.04 | 8.77 | |
| 05/10/2026 | 3.4 | 0.2 | 19.7 | 6.5 | 98 | 45 | 3.88 | 18.79 | |
| 06/10/2026 | 4.8 | 0.0 | 19.5 | 9.7 | 82 | 23 | 6.57 | 15.35 | |
| Totals: | 23.1 | 1.8 |
