- Jul 19, 2010
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Statistically there is a temperature difference between weekends and weekdays, in many cities, due to a reduction in air pollution on the weekends. I just can't remember whether the temperature goes up or down. Thursday is not a weekend, so it shouldn't be any different to Friday night - but it should be slightly different to Saturday or Sunday nights.
When I say slightly, the difference is less than a degree, and only really measurable when averaged over a long period of time.
There was a notable change in temperature/weather in the US in the days following 9/11, due to the airline traffic being shut down. The lack of contrails created clearer skies, which resulted in statistically significant weather changes.
OK... this is definitely the pedant in me showing through.