Evapotranspiration Calculations
St Helens Aerodrome - June 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) |
|---|---|---|---|---|---|---|---|---|---|
| 01/06/2025 | 1.1 | 0.2 | 15.8 | 3.2 | 98 | 59 | 3.17 | 7.89 | |
| 02/06/2025 | 1.6 | 0.0 | 16.0 | 6.5 | 86 | 60 | 4.50 | 3.50 | |
| 03/06/2025 | 1.2 | 8.6 | 11.9 | 8.1 | 96 | 47 | 3.18 | 6.51 | |
| 04/06/2025 | 1.1 | 0.0 | 13.9 | 4.7 | 83 | 49 | 2.30 | 7.84 | |
| 05/06/2025 | 1.1 | 0.0 | 13.7 | 1.8 | 95 | 51 | 2.68 | 7.77 | |
| 06/06/2025 | 1.0 | 0.0 | 14.6 | 4.7 | 95 | 64 | 2.76 | 4.50 | |
| 07/06/2025 | 0.8 | 0.4 | 14.0 | 6.1 | 97 | 72 | 2.59 | 5.00 | |
| 08/06/2025 | 0.8 | 2.0 | 14.2 | 4.3 | 97 | 76 | 3.00 | 4.70 | |
| 09/06/2025 | 1.4 | 10.6 | 13.0 | 6.2 | 92 | 58 | 4.93 | 4.44 | |
| 10/06/2025 | 0.6 | 23.8 | 12.8 | 8.0 | 96 | 82 | 2.74 | 5.49 | |
| 11/06/2025 | 0.8 | 13.4 | 13.8 | 6.6 | 94 | 61 | 2.03 | 7.34 | |
| 12/06/2025 | 0.9 | 0.4 | 13.9 | 2.5 | 97 | 61 | 2.76 | 7.64 | |
| 13/06/2025 | 1.2 | 0.0 | 15.1 | 2.6 | 97 | 50 | 3.13 | 7.61 | |
| 14/06/2025 | 0.9 | 0.4 | 15.0 | 3.1 | 97 | 57 | 2.32 | 7.44 | |
| 15/06/2025 | 0.7 | 0.4 | 14.8 | 2.8 | 98 | 64 | 2.09 | 7.60 | |
| 16/06/2025 | 1.1 | 0.2 | 14.0 | 3.0 | 98 | 59 | 3.37 | 4.87 | |
| 17/06/2025 | 1.1 | 4.4 | 13.9 | 8.6 | 92 | 57 | 3.02 | 5.89 | |
| 18/06/2025 | 0.9 | 0.2 | 13.7 | 3.3 | 94 | 51 | 2.07 | 7.31 | |
| 19/06/2025 | 0.8 | 0.0 | 14.2 | 3.4 | 95 | 67 | 2.74 | 6.60 | |
| Totals: | 19.1 | 65.0 |
