How hot was November 2023?

I posted this update on global temperatures in my most recent Quick Takes on Briefed by Data. As expected, 2023 set a record for November temperature, as can be seen in the graph. The last bar in black will be classified as El Niño, and while the record looks extreme, it is largely following the pattern of the red bars. From the NOAA report for November 2023, which includes links to the data:

The November global surface temperature was 1.44°C (2.59°F) above the 20th-century average of 12.9°C (55.2°F), making it the warmest November on record. This was 0.38°C (0.68°F) above the previous record from November 2015. November 2023 marked the 47th-consecutive November and the 537th-consecutive month with temperatures at least nominally above the 20th-century average.

November saw a record-high monthly global ocean surface temperature for the eighth consecutive month. El Niño conditions that emerged in June continued into November, and according to NOAA’s Climate Prediction Center there is a 60% chance that El Niño will continue through April–June 2024.

Here is the graph for all months for context. Again, note that the last few months are in line with the anomalies during El Niño. I’ll have more to say about this in a future post.

About Thomas J. Pfaff

Thomas J. Pfaff is a Professor of Mathematics at Ithaca College. He created this website because he believes that sustainability, ranging from climate change to social justice, should be included in all courses whenever possible.

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