The warmest year in measured history is 2016. This year set a global average temperature record, primarily due to the influence of a strong El Niño event. Since then, 2019 and 2020 have also challenged this record as some of the warmest years on record.
Yes, 2017 was one of the warmest years on record, but not the warmest.
February.
2014
Death Valley
Hawaii.
Hawaii
2010 was the warmest.
Mississippi
Countries near the equator are the warmest year-round.
Hawaii.
At summer
Hawaii.