Evapotranspiration Calculations
Merriwa (Roscommon) - 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) |
|---|---|---|---|---|---|---|---|---|---|
| 01/10/2026 | 5.7 | 0.0 | 29.3 | 4.3 | 82 | 20 | 3.26 | 21.47 | |
| 02/10/2026 | 5.4 | 0.0 | 31.0 | 6.9 | 78 | 20 | 2.61 | 20.00 | |
| 03/10/2026 | 4.8 | 0.2 | 28.9 | 14.7 | 95 | 26 | 4.28 | 10.88 | |
| 04/10/2026 | 5.5 | 1.6 | 27.5 | 9.7 | 98 | 20 | 3.41 | 23.22 | |
| 05/10/2026 | 4.0 | 0.0 | 27.0 | 10.1 | 94 | 32 | 2.01 | 18.31 | |
| 06/10/2026 | 5.4 | 0.0 | 28.2 | 11.1 | 96 | 28 | 3.68 | 22.02 | |
| 07/10/2026 | 4.4 | 0.0 | 22.1 | 5.9 | 84 | 39 | 4.92 | 18.30 | |
| 08/10/2026 | 4.8 | 0.0 | 24.5 | 3.1 | 98 | 25 | 3.00 | 23.73 | |
| 09/10/2026 | 5.5 | 0.0 | 31.5 | 3.5 | 98 | 25 | 2.44 | 23.19 | |
| 10/10/2026 | 7.0 | 0.4 | 31.5 | 14.2 | 84 | 24 | 5.92 | 17.55 | |
| 11/10/2026 | 5.6 | 0.0 | 32.9 | 8.8 | 81 | 22 | 2.49 | 21.19 | |
| 12/10/2026 | 7.8 | 0.0 | 35.1 | 9.6 | 79 | 18 | 4.48 | 20.79 | |
| 13/10/2026 | 3.0 | 0.0 | 25.1 | 19.2 | 93 | 50 | 3.19 | 8.76 | |
| 14/10/2026 | 2.5 | 4.8 | 17.7 | 11.6 | 96 | 60 | 4.59 | 11.40 | |
| 15/10/2026 | 4.8 | 0.0 | 21.7 | 5.0 | 93 | 37 | 6.45 | 20.47 | |
| 16/10/2026 | 4.6 | 0.0 | 22.3 | 12.2 | 82 | 41 | 6.86 | 14.16 | |
| 17/10/2026 | 5.2 | 0.0 | 23.3 | 11.4 | 88 | 40 | 6.58 | 22.16 | |
| 18/10/2026 | 4.9 | 0.0 | 24.4 | 4.9 | 98 | 32 | 3.82 | 23.17 | |
| 19/10/2026 | 5.4 | 0.0 | 26.3 | 7.9 | 95 | 24 | 3.52 | 23.28 | |
| 20/10/2026 | 5.5 | 0.0 | 27.5 | 7.4 | 97 | 27 | 3.18 | 24.56 | |
| 21/10/2026 | 5.7 | 0.0 | 28.0 | 10.4 | 92 | 30 | 3.90 | 22.85 | |
| 22/10/2026 | 4.5 | 0.0 | 25.7 | 15.7 | 88 | 51 | 6.04 | 15.28 | |
| 23/10/2026 | 4.9 | 0.4 | 27.5 | 14.6 | 93 | 40 | 3.80 | 19.05 | |
| 24/10/2026 | 3.8 | 0.0 | 27.3 | 11.4 | 97 | 48 | 2.16 | 16.84 | |
| 25/10/2026 | 5.5 | 3.4 | 30.7 | 14.5 | 97 | 42 | 5.25 | 17.37 | |
| 26/10/2026 | 6.4 | 0.8 | 26.4 | 15.3 | 95 | 20 | 4.99 | 24.99 | |
| Totals: | 132.6 | 11.6 |
