Official sources said on Saturday the chill claimed six lives in Barabanki, four in Sultanpur and one in Etah.
Maximum day temperatures in the state were below normal by 6 to 13 degree Celsius while the night temperatures fell in Gorakhpur and Varanasi divisions and were below normal in the state.
Lowest minimum temperature in the state was 0.3 degree Celsius recorded at Muzaffarnagar followed by Najibabad (Bijnore) 1.0 deg, Agra 1.1 deg, Ghazipur 1.5 deg, Lucknow 1.8 deg, Gorakhpur 2.4 deg and Kanpur 2.7 deg Celsius.
Local Met officials said that dry and foggy conditions would prevail over many parts of the state in the next 48 hours.