Icy winds continued to sweep the region causing fall in mercury with Keylong in Lahaul and Spiti recording lowest temperature at minus 7.5 degree Celsius, followed by Kalpa minus 2.0 degree, Manali zero degree, Solan 2.6 degree, Mandi 3.1 degree, Bhuntar 3.5 degree, Sundernagar 3.7 degree, Palampur 5.5 degree and state capital Shimla 6.8 degree C, Met office sources said.
The maximum day temperatures also dropped marginally with Una, which was hottest in the region with a high of 23.6 degree Celsius, followed by Sundernagar 22.4 degree, Solan 21. 5 degree, Bhunter 20.8 degree, Dharamshala 18.2 degree and Shimla 15.1 degree C.
The high altitude tribal areas groaned under arctic conditions with minimum temperatures staying between minus eight and minus 15 degree Celsius.
All natural sources of water like lakes, springs, rivulets and 70 km long stretch of Chandrabhaga river were frozen for past two weeks causing sharp fall in discharge of water in snowfed Sutlej, Ravi and Beas rivers, affecting hydropower generation.
