Season Average Temperature (°C) Average Relative Humidity (%) Average Vapor Pressure (Kpa) Average Absolute Humidity (g/m3) Average dD (‰)
Roorkee Manali Roorkee Manali Roorkee Manali Roorkee Manali Roorkee Manali
  2012 2013 2012 2013 2012 2013 2012 2013 2012 2013 2012 2013 2012 2013 2012 2013 2012 2013 2012 2013
Pre-monsoon (May-Jun) 32.8 30.2 19.9 16.5 29 50.6 25.6 43 1.4 1.2 0.6 0.8 10.2 8.5 4.4 6 -55.1 -54.8 -4.9 -33.6
Monsoon (Jul-Sep) 29.1 28.7 19.6 18.6 78. 7 80.8 70.3 78.4 3.1 2.2 1.6 1.6 22.5 15.7 11.8 11.8 -107 -90.9 -96.7 -59
Post-monsoon (Oct-Nov) 24 27.6 9.9 13.6 63 72.9 38.4 45.6 1.9 1.9 0.5 0.7 13.8 13.8 3.7 5.4 -62.9 -104 -68.8 -58.5
Table 1: Seasonal variation on Meteorological parameters and isotopes (δD) at Roorkee and Manali (2012 and 2013).