Winnipeg was the coldest city in the world with population over 600,00, now Ulan Bator in Mongolia is the coldest one, but Winnipeg remain the second coldest.
Temperatures as high as 42.2 °C (108 °F) in July 1936[16] and as low as −47.8 °C (−54.0 °F) in December 1879[17] have occurred in the city, a 90°C (162°F) difference. According to Environment Canada, Winnipeg was the coldest city in the world with a population of over 600,000 based on the average night-time temperature from December to February, inclusive;[18] however, now that Ulan Bator has grown bigger than Winnipeg, Ulan Bator, Mongolia is now the coldest city in the world (with a population of over 600,000).[19][20] Harbin, China is also cooler based on winter nighttime lows.