Evapotranspiration Calculations
Tunnack Fire Station - January 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) |
| 01/01/2026 | 4.9 | 0.2 | | 22.1 | 2.4 | 97 | 39 | 2.50 | 30.33 |
| 02/01/2026 | 4.3 | 0.0 | | 21.6 | 9.3 | 93 | 47 | 3.26 | 22.50 |
| 03/01/2026 | 5.7 | 0.0 | | 23.8 | 10.4 | 95 | 30 | 4.41 | 26.75 |
| 04/01/2026 | 3.9 | 3.4 | | 20.5 | 10.2 | 95 | 53 | 2.84 | 21.48 |
| 05/01/2026 | 6.1 | 0.6 | | 27.0 | 11.0 | 96 | 29 | 3.71 | 26.92 |
| 06/01/2026 | 5.6 | 0.0 | | 25.8 | 10.6 | 94 | 33 | 3.42 | 26.03 |
| 07/01/2026 | 6.7 | 0.0 | | 32.1 | 8.4 | 98 | 27 | 2.73 | 29.13 |
| 08/01/2026 | 7.0 | 0.0 | | 27.9 | 13.2 | 95 | 20 | 4.06 | 29.89 |
| 09/01/2026 | 2.3 | 0.0 | | 19.6 | 12.6 | 95 | 64 | 5.20 | 6.21 |
| 10/01/2026 | 4.2 | 7.2 | | 18.4 | 10.3 | 93 | 49 | 8.25 | 21.25 |
| 11/01/2026 | 4.7 | 1.2 | | 18.4 | 4.6 | 87 | 38 | 4.86 | 27.71 |
| 12/01/2026 | 5.5 | 0.0 | | 23.4 | 3.8 | 96 | 28 | 2.98 | 30.11 |
| 13/01/2026 | 4.3 | 0.0 | | 22.5 | 8.9 | 98 | 47 | 2.76 | 23.41 |
| 14/01/2026 | 2.2 | 6.6 | | 15.3 | 10.5 | 98 | 77 | 3.17 | 13.82 |
| 15/01/2026 | 2.7 | 2.2 | | 15.7 | 9.7 | 94 | 68 | 3.76 | 16.33 |
| 16/01/2026 | 2.2 | 0.6 | | 15.3 | 8.6 | 95 | 66 | 3.92 | 10.97 |
| 17/01/2026 | 2.9 | 0.8 | | 15.7 | 9.9 | 82 | 61 | 4.76 | 14.30 |
| 18/01/2026 | 3.1 | 0.0 | | 16.8 | 10.5 | 95 | 58 | 4.20 | 16.45 |
| 19/01/2026 | 3.5 | 1.6 | | 18.3 | 10.8 | 96 | 67 | 4.96 | 22.64 |
| 20/01/2026 | 4.8 | 0.2 | | 24.4 | 10.1 | 97 | 40 | 2.84 | 24.37 |
| 21/01/2026 | 2.8 | 0.0 | | 20.1 | 8.4 | 97 | 58 | 3.73 | 12.05 |
| 22/01/2026 | 3.2 | 14.4 | | 14.7 | 6.4 | 93 | 48 | 4.39 | 18.13 |
| 23/01/2026 | 4.0 | 0.4 | | 19.5 | 1.4 | 98 | 44 | 2.85 | 25.26 |
| 24/01/2026 | 5.4 | 0.0 | | 23.4 | 9.7 | 88 | 42 | 6.65 | 23.92 |
| 25/01/2026 | 3.9 | 0.0 | | 18.8 | 10.4 | 98 | 40 | 3.41 | 21.06 |
| 26/01/2026 | 4.8 | 0.0 | | 23.8 | 1.9 | 98 | 43 | 2.39 | 29.21 |
| 27/01/2026 | 7.3 | 0.0 | | 28.1 | 9.3 | 95 | 22 | 5.80 | 27.46 |
| 28/01/2026 | 5.0 | 0.0 | | 25.7 | 14.5 | 95 | 29 | 3.66 | 19.33 |
| 29/01/2026 | 2.8 | 0.0 | | 18.5 | 6.1 | 95 | 64 | 2.79 | 16.83 |
| 30/01/2026 | 4.7 | 0.0 | | 25.9 | 10.2 | 95 | 40 | 2.90 | 22.34 |
| Totals: | 130.5 | 39.4 | | | | | | | |
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