Bhubaneswar: Night temperature on Saturday slid to sub-20 degrees Celsius at several places for the first time this winter. At six places, the minimum temperature hovered below 15 degrees Celsius.Hill station Semiliguda in Koraput district was the coldest place at 12.2°C, closely trailed by G Udayagiri in Kandhamal district at 12.5°C. Phulbani recorded the lowest minimum temperature at 14°C in the plains. Hirakud, at a minimum of 16.6, saw a 1.9-degree Celsius drop from normal.In the twin cities, Bhubaneswar recorded a minimum of 19.8°C, 0.4 degrees more than normal. Similarly, Cuttack, at 19.4°C, saw 0.7 degrees more than normal.Manorama Mohanty, head of the regional IMD centre, said there would be no large change in the prevailing trend of minimum temperature for the next four days. Thereafter, it would witness a rise by two to four degrees Celsius, under the influence of an expected cyclonic storm and clouds.Foggy conditions were also witnessed at several places. Koraput and Rourkela witnessed dense fog, reducing visibility to below 200 m. Shallow fog also gripped places like Jharsuguda and Phulbani.An IMD bulletin said the minimum temperature observed an appreciable fall by about 2°C at isolated places over the districts of south coastal Odisha. It was also below normal by about 2°C at one or two places over the districts of interior Odisha.The bulletin said night temperature was above normal by about 2°C at a few places over coastal districts and at isolated places over interior Odisha districts. It was also appreciably above normal by about 3°C at isolated places over interior Odisha.