Keylong in Lahaul and Spiti experienced the coldest night of the season with the minimum temperature plunging to minus 12.3 degree while mercury hovered around freezing point in mid hills.
The cold wave conditions further intensified and the high-altitude tribal areas reeled under arctic conditions with night temperatures staying between minus 15 and minus 22 degree. Kalpa in tribal Kinnaur district recorded a low of minus 3.4 degree, while Manali and Bhuntar recorded minimum temperatures at minus 1 degree and 0.8 degree, three degree below normal, followed by Sundernagar 2 degree, Solan 3 degree, Kufri 3.7 degree, Palampur 4.5 degree, Shimla 5.2 degree and Dalhousie 5.3 degree.
The weather remained dry and bright sunshine greeted the people but nights were colder. The local MeT office has predicted dry weather in the lower, mid and higher hills over next six days. However, the day temperature rose marginally.
All natural sources of water in high-altitude areas, including Chandratal, Surajral, Bhrigu, Nako and the Chandra-Bhaga river have frozen, drastically reducing the discharge of water in the snowfed Sutlej, Beas and Ravi and hydropower generation has reduced to 25 to 30 per cent. Himachal received 71.8 mm rain against normal 48.4 mm, an excess of 48 per cent during the post-monsoon season from October 1 to December 1.
All districts barring Lahaul and Spiti, which received 32 per cent deficit rain, and Solan, which has a marginal deficit of 5 per cent, received excess rain ranging between 35 and 154 per cent. The periodic rain during the post-monsoon season are beneficial for Rabi sowing and nearly 90 per cent sowing is complete.