Thick ground frost occurred in mid and higher hills. Slippery road conditionsmade driving hazardous, while water pipes froze and burst at several places affectingwater supply.
The high-altitude tribal areas groaned under freezing conditions with minimum temperaturesstaying betweenminus 10 and minus 16 degrees Celsius while Keylong and Kalpa in tribal, Spitiand Kinnaur districts recorded a low of minus 6.1 degrees and minus 2degrees Celsius.
All natural sources of water including lakes, springs, rivulets and tributaries of major rivers including a 70 km stretch of Chandrabhaga river were frozen, drastically reducing the dischargeof water in snow-fed Sutlej, Beas and Ravi rivers, affecting hydro power generation.
Yesterday's rain and snow marginally reduced the rain deficit from October 1 to December 26 from 94 to 92 per cent as the region received 7.5 mm rains against normal rainfall of 90.6 mm.
The maximum temperature increased by a few degrees and Una in Shivalik foothills was hottestin the region with a high of 23.8 degrees while Sundernagar and Solan recorded maximum temperatures at 20.4 degrees and 19.5 degrees, followed by Bhuntar 18 degrees, Dharamshala 16.6 degrees, Nahan 17.5 degrees, Shimla15.9 degrees, Manali 13 degrees and Kalpa 9.6 degrees C.