According to a monthly analysis of global temperatures by NASA scientists, January 2017 was the third warmest January in 137 years of modern record-keeping.
January 2017 temperature was 0.20 degrees Celsius cooler than the warmest January in 2016. However, it was 0.92 degrees Celsius warmer than the mean January temperature from 1951-1980.
Two of the three top January temperature anomalies have been during the past two years. 2016 was the hottest on record, at 1.12 degrees Celsius warmer than the January mean temperature, followed by 2007 at 0.96 degrees Celsius warmer.
January 2017 is placed third.
Scientists at NASA’s Goddard Institute for Space Studies created a map of the January 2017 land-ocean temperature index (LOTI) anomaly.
It shows that most of North America and Siberia were much warmer than the 1951-1980 base period. Much of the rest of Asia was also relatively warm.