| 
      
        |  | Delhi | Dibrugarh | Thiruvananthapuram |  
        | Parameters | Day | Night | Mean | Day | Night | Mean | Day | Night | Mean |  
        | Temperature (oC) | 33.5 | 33.5 | 33.5 | 31.1 | 27.8 | 29.4 | 30.1 | 24.0 | 27.1 |  
        | RH (%) | 56.6 | 56.2 | 56.4 | 68.2 | 83.2 | 75.7 | 60.1 | 86.0 | 73.0 |  
        | Wind speed  (ms-1) | 2.8 | 2.2 | 2.5 | 2.5 | 1.3 | 1.9 | 1.3 | 0.4 | 0.8 |  |