Keylong and Kalpa in tribal Lahaul and Spiti and Kinnaur districts reeled under piercing cold wave with mercury staying at minus 1.8 degrees Celsius and 2.4 deg C.
Manali recorded a low of 3.0 deg C followed by 7.1 deg C, Chamba and Sundernagar 8.6 deg, Solan 9.0 deg, Shimla 9.8 deg, Dharamsala 12.2 deg, Una 13.0 deg and Nahan 13.3 degree, two to five degrees C below normal.
Una was hottest in the region with maximum temperature at 33.4 deg C while Sundernagar recorded a high of 29.9 deg C, followed by Bhuntar 28.5 deg C, Nahan 28.4 deg C, Solan 26.6 deg C, Dharamsala 24.2 deg C, Shimla 20.4 deg and Kalpa 16.0 deg C.