On Friday, the featured plot shown two seasonal maxima of difference between the daily average computed by taking the high and low temperature to that of taken by averaging hourly observations. The question remains as to why these appear... Today's featured plot displays the composite diurnal temperature cycle for four months of interest. The plots are normalized by their respective daily average temperature computed by averaging the high and low. The plot means are displayed in the legend for each month. It may take another feature plot before this mini-mystery is resolved!

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Tags:   climate   temperature