- The average global temperature in November 2018 was 1.35 degrees F above the 20th-century average of 55.2 degrees.
- This was the fifth-highest temperature for November (tying with 2004 and 2016) in the 139-year record (1880–2018).
- November was also the 42nd consecutive November and 407th consecutive month with global temperatures above average.
January through November 2018
- The January-through-November period (YTD) average global temperature was 1.39 degrees F above the average of 57.2 degrees.
- This is the fourth highest YTD on record.
- Europe had its hottest YTD since continental records began in 1910, posting a continental temperature of 3.24 degrees F above average.
Other noteworthy facts
- A three-month heat spike:
- The period from September through November was the second warmest on record for the globe, with a temperature of 1.44 degrees F above average.
- Each continent, except North America, hit a temperature that ranked among the eight warmest on record for the three-month period.
2. Polar sea-ice coverage remains smaller than average:
- Average Arctic sea ice coverage(extent) in November was 8.4% below the 1981–2010 average, the ninth smallest for November on record.
- However, Arctic sea ice extent increased faster than average for polar regions in the Northern Hemisphere. The Antarctic sea ice extent was 5.6% below average, the second smallest for November on record.