January 2017 was the third hottest January on record: NASA
January 2017 was the third hottest January since modern record-keeping began in 1880, according to the latest data released by NASA. Last month's temperature was 0.20°C cooler than January 2016, which was the warmest January on record. Notably, 2016 was the hottest year ever observed, with July 2016 being the absolute hottest month.