September 2016 was the hottest September on record. We've heard that refrain a lot this year, with 11 of the past 12 months breaking records.
Now, according to NASA, 2016 is all but guaranteed to be the hottest year in recorded history.
Last month only barely beat the previous September record by 0.004 degrees Celsius, The Guardian reports. And that number could change. But the trend for 2016 is clear.
This graphic shows the trend clearly.
We continue to stress that while monthly rankings are newsworthy, they are not nearly as important as long-term trends.
And while September 2016 only barely beat the record, it's still 0.91 degrees Celsius above the average temperature from 1951-1980.
NASA also published a map showing just how far some areas deviated from average temperatures.