Per NOAA, there was a +0.05°C increase in the temperature anomaly over the June 2023 reading.
That means there has been an increase of +0.23°C since July 2022.
In comparison, that 12-month increase pales to the 12-month increase of 0.71°C for February, 1995; the +0.54°C increase for December 1939; and the July 1987 +0.33°C jump
Further analysis of NOAA global temperature dataset confirms that the planet remains in a slight cooling trend over the last 104 months (8.7 years) during a period where atmospheric CO2 levels surged by another 21ppm.
The end result is a negative correlation (-0.030) between CO2 and NOAA temperature anomalies from December 1, 2014 through July 2023. In fact, the weak correlation between these two variables stretches back 10 years to June 2013.
This result completely lays waste to the greenhouse gas 'hopium' that CO2 is a "control knob" that policymakers and scientists can twist and turn to manage and stabilize the climate.
If CO2 is not responsible for the recent warming in 2023, then what are the factors involved that increased temperatures in July and likely will continue to do so in the near future?
This article by a well known climate scientists provides a detailed summary of all the climate factors that are driving 2023 temps up. (Beware, the science is complicated, which reflects the complexities involved within the non-linear and chaotic world climate. And light-years more complicated than the simplistic belief that CO2 is some sort of a "control knob" for achieving climate stability.)
Additional global and regional temp charts.
Notes: Excel used for all calculations and plots. Sources: Global temp anomalies & CO2 levels.