| 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 | 20 | 85 | 20 | 85 | 20 | 85 | 20 | 85 |
| 10.00 a.m | 24 | 70 | 23 | 70 | 22 | 70 | 21 | 70 |
| 12.00 noon | 28 | 55 | 26 | 55 | 24 | 55 | 22 | 55 |
| 2.00 p.m | 32 | 40 | 29 | 40 | 26 | 40 | 23 | 40 |
| 4.00 p.m | 28 | 55 | 26 | 55 | 24 | 55 | 22 | 55 |
| 6.00 p.m | 24 | 70 | 23 | 70 | 22 | 70 | 21 | 70 |