| Time | Road and Pavement Materials | Earth, i.e. (Ordinary Ground) | Vegetation, i.e. (Grass) | |||||
| Asphalt | Concrete |
|
| |||||
| TEMP (˚C) | R.H (%) | TEMP (˚C) | R.H (%) | TEMP (˚C) | R.H (%) | TEMP (˚C) | R.H (%) | |
| 8.00 a.m | 21 | 80 | 21 | 80 | 21 | 80 | 21 | 80 |
| 10.00 a.m | 25 | 65 | 24 | 65 | 23 | 65 | 22 | 65 |
| 12.00 noon | 29 | 60 | 27 | 50 | 25 | 50 | 23 | 50 |
| 2.00 p.m | 33 | 35 | 30 | 35 | 27 | 35 | 24 | 35 |
| 4.00 p.m | 29 | 50 | 27 | 50 | 25 | 50 | 23 | 50 |
| 6.00 p.m | 25 | 65 | 24 | 65 | 23 | 65 | 22 | 65 |