Table 1: Average of climate records for 10 years (2009 - 2018) in Al Rayn area (Source: Saudi General Authority of Meteorology and Environmental Protection).
Climate variable |
Range |
Mean |
Max air temperature (°C) |
34.7-35.8 |
35.2 |
Min air temperature (°C) |
13.7-16.2 |
15.0 |
Rainfall (mm/ month) |
0.02-42.4 |
21.3 |
Relative humidity (%) |
45.3-61.1 |
59.2 |
Wind speed (km/ h) |
4.6-16.8 |
10.7 |