Evapotranspiration Calculations
Portland Airport - November 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) |
| 01/11/2025 | 3.9 | 0.0 | | 19.6 | 11.9 | 100 | 69 | 3.26 | 27.14 |
| 02/11/2025 | 4.2 | 0.2 | | 25.5 | 10.9 | 100 | 42 | 5.91 | 9.96 |
| 03/11/2025 | 3.3 | 7.0 | | 15.3 | 9.0 | 100 | 58 | 4.26 | 23.90 |
| 04/11/2025 | 1.9 | 0.2 | | 13.3 | 6.2 | 99 | 70 | 8.49 | 10.47 |
| 05/11/2025 | 3.2 | 0.0 | | 16.1 | 8.6 | 91 | 66 | 8.40 | 21.43 |
| 06/11/2025 | 2.5 | 0.0 | | 16.9 | 6.5 | 100 | 67 | 3.42 | 15.52 |
| 07/11/2025 | 2.3 | 0.0 | | 19.5 | 11.2 | 100 | 67 | 5.65 | 8.78 |
| 08/11/2025 | 3.6 | 0.0 | | 14.8 | 9.1 | 90 | 54 | 5.72 | 24.62 |
| 09/11/2025 | 3.0 | 0.0 | | 14.8 | 8.2 | 99 | 62 | 5.40 | 20.76 |
| 10/11/2025 | 2.6 | 0.0 | | 15.0 | 10.1 | 98 | 62 | 5.87 | 14.21 |
| 11/11/2025 | | 0.0 | | | 6.1 | 93 | 51 | 6.85 | 27.20 |
| 12/11/2025 | 3.7 | | | 15.9 | 8.3 | 84 | 56 | 8.00 | 21.46 |
| 13/11/2025 | 3.6 | 0.0 | | 16.7 | 6.4 | 96 | 63 | 6.12 | 27.04 |
| 14/11/2025 | 3.5 | 0.0 | | 15.2 | 5.6 | 90 | 55 | 3.43 | 24.55 |
| 15/11/2025 | 3.7 | 0.0 | | 17.1 | 5.8 | 99 | 67 | 3.01 | 28.61 |
| 16/11/2025 | 2.7 | 0.0 | | 16.1 | 9.1 | 99 | 67 | 7.25 | 16.53 |
| 17/11/2025 | 2.8 | 0.0 | | 16.2 | 10.1 | 99 | 71 | 9.02 | 19.68 |
| 18/11/2025 | 2.6 | 0.0 | | 17.9 | 11.0 | 100 | 76 | 8.48 | 17.85 |
| 19/11/2025 | 3.4 | 0.0 | | 16.0 | 10.8 | 96 | 57 | 7.05 | 20.02 |
| 20/11/2025 | 4.0 | 0.0 | | 15.3 | 7.7 | 87 | 48 | 3.56 | 27.46 |
| 21/11/2025 | 4.2 | 0.0 | | 15.7 | 5.9 | 81 | 47 | 4.47 | 28.46 |
| 22/11/2025 | 3.3 | 0.0 | | 17.8 | 9.9 | 99 | 65 | 3.55 | 21.54 |
| 23/11/2025 | 4.3 | 0.0 | | 20.0 | 7.4 | 100 | 61 | 3.62 | 29.66 |
| 24/11/2025 | 4.5 | 0.0 | | 23.2 | 14.2 | 99 | 67 | 6.35 | 27.08 |
| 25/11/2025 | 4.1 | 0.0 | | 18.9 | 12.8 | 100 | 65 | 8.35 | 29.09 |
| Totals: | 80.9 | 7.4 | | | | | | | |
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