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I live in France. Is it true that there are more occurrences of deep blue skies during spring. If yes why ? Is it true also during autumn. Thank you for answering

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  • $\begingroup$ Welcome to Earth Science! What do you mean by 'deep blue skies'? This is a very subjective term. $\endgroup$ – bon May 23 '16 at 9:48
  • $\begingroup$ Where in France do you live? Do you mean clear skies in general? $\endgroup$ – gerrit May 23 '16 at 11:42
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This is related to a similar question on April 29th in that the apparent colour of the sky is mainly caused by the absorption of different wavelengths of light by a wide range of atmospheric pollutants. I strongly suspect that if you compare the antecedent rainfall with the colour of the sky (in a given direction at a given time of day) you will find a marked correlation. The rain scrubs the atmosphere clean, so, facing away from the sun, you are likely to see a brighter blue after any period of significant rain.
So what is the typical amount of rain in spring, summer, autumn and winter, in your part of France?

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    $\begingroup$ I think this might be a comment rather than an answer to the specific question. If the question is not clear, let's ask for farther clarification. $\endgroup$ – arkaia May 23 '16 at 16:15

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