Evapotranspiration Calculations
Horsham Aerodrome - December 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) |
|---|---|---|---|---|---|---|---|---|---|
| 01/12/2025 | 4.5 | 1.8 | 18.7 | 8.8 | 94 | 42 | 7.68 | 21.41 | |
| 02/12/2025 | 4.7 | 3.2 | 21.8 | 4.8 | 96 | 39 | 3.86 | 25.00 | |
| 03/12/2025 | 8.7 | 0.0 | 32.5 | 6.0 | 93 | 16 | 4.97 | 30.73 | |
| 04/12/2025 | 12.2 | 0.0 | 36.4 | 12.5 | 65 | 10 | 8.32 | 25.20 | |
| 05/12/2025 | 8.3 | 0.0 | 33.1 | 10.5 | 87 | 17 | 4.39 | 28.73 | |
| 06/12/2025 | 3.8 | 2.4 | 20.4 | 12.1 | 93 | 41 | 5.11 | 12.99 | |
| 07/12/2025 | 5.4 | 3.0 | 21.8 | 3.3 | 93 | 28 | 3.83 | 29.79 | |
| 08/12/2025 | 8.0 | 0.0 | 29.2 | 7.6 | 81 | 24 | 5.79 | 30.30 | |
| 09/12/2025 | 7.4 | 0.0 | 27.2 | 14.6 | 80 | 19 | 4.89 | 29.69 | |
| 10/12/2025 | 4.6 | 0.0 | 24.5 | 9.6 | 82 | 33 | 4.38 | 12.98 | |
| 11/12/2025 | 8.9 | 0.0 | 31.1 | 8.2 | 79 | 10 | 5.13 | 30.80 | |
| 12/12/2025 | 8.9 | 0.0 | 34.9 | 10.1 | 78 | 12 | 4.22 | 28.24 | |
| 13/12/2025 | 7.8 | 0.0 | 33.3 | 17.7 | 85 | 24 | 4.83 | 24.65 | |
| 14/12/2025 | 6.4 | 0.2 | 23.1 | 11.5 | 84 | 31 | 7.71 | 26.21 | |
| 15/12/2025 | 6.3 | 0.0 | 23.0 | 4.7 | 88 | 29 | 6.16 | 30.41 | |
| 16/12/2025 | 7.6 | 0.0 | 29.5 | 5.6 | 85 | 22 | 4.53 | 30.57 | |
| 17/12/2025 | 8.8 | 0.0 | 36.4 | 10.1 | 70 | 14 | 3.50 | 30.17 | |
| 18/12/2025 | 12.6 | 0.0 | 41.5 | 11.9 | 67 | 7 | 5.68 | 30.27 | |
| Totals: | 134.9 | 10.6 |
