Average monthly temperatures are reported monthly on website https://www.drroyspencer.com/latest-global-temperatures/.
These temperatures are derived from satellite data by the University of Alabama’s Dr Roy Spencer and Alabama’s state climatologist (retired) John Christy.
The satellite programme began in late 1979. 1980 was the first complete year.
The data covers different atmospheric layers (Lower Troposphere, Mid-Troposphere, Tropopause and Lower Stratosphere.
All temperatures are reported as anomalous data against the average for 1991 to 2020.
Pages are included for both Historic (1980-2025) and recent data (from 2020) for each of the following::
The above are global averages of temperature at different heights in the atmosphere.
By considering actual temperatures (ie not anomalous) for the Lower Troposphere and Stratosphere, a proxy metric may be found for the level of Global Warming contributed by carbon dioxide (and overlapping water vapour) in the 'Saturation zone'. This explained in the web-page 'The Greenhouse Effect for Laypersons':
More to follow