8 VOLATILITY IN TEMPERATURE

reality

In George Bernard Shaw’s play ‘Pygmalion’ that gave rise to the Lerner and Loewe musical ‘My Fair Lady’, Henry Higgins declares that he can tell where a person comes according to the accent in their speech. Equally, it may be possible to detect the origin of temperature change, natural or otherwise, via a close study of the evolution of temperature over time.

Departures from the 1948-2015 average monthly air temperature are presented below.  The spread on the axes has been adjusted to a common interval of +4 to -4°C to facilitate  comparison.

We are looking for the month that shows the greatest variability over time. We are also interested in the course of temperature change over the entire sixty seven year period.

For economy of effort, we look at two months at a time starting with January and February in the Arctic.

Air T 60-90nAit T MAAir T MJAir T JAAir T SOAir T NDAir T 60-90n

We see that January and February are the months when…

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