lines.
The horizontal and vertical scales vary from month to month.
9
x Comparing the distributions derived from observations for 1961-1990 and 1961-2008,
it is clear that the latter period was generally warmer (or, more precisely, the years
1991-2008 were warmer than 1961-1990). However, the difference varies from month
to month. A marked outlier is June, with slightly lower temperatures
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