NOAA’s Data Shows Rising Average Temps Driven By Growth And Measurement Flaws—Not Climate Change

by L. Hamlin, Oct 7, 2024 in ClimateChangeDispatch


NOAA’s U.S. contiguous U.S. summer measured minimum and maximum temperature trends (June through August) over the period 1895 through 2024 (shown below from NOAA’s Climate at a Glance Times series data website) show clear and distinct differing temperature trend increasing growth compared to the calculated average temperature trend outcome. [emphasis, links added]

The minimum temperature trend outcomes after 1985 climb significantly faster than the maximum measured temperature trend outcomes. U.S. population data shows an increase of about 100 million during the 1980 to 2023 period.

Since the average temperature is not a measured value but instead the calculated mathematical average of the minimum and maximum measured temperatures {(Tmax + Tmin)/2}, the average temperature-calculated trend outcome is controlled and dominated by the much larger increase occurring in the minimum-measured temperature trend versus the maximum measured temperature trend.