Good Day Sunshine

We have installed 16 P/V solar panels here at the house and March was the first full month that they been in operation. The bar chart below shows the daily out put for the month.

What can we conclude - there certainly was very little cloud cover during the entire month! Would be happy to take some reduced output in exchange for a good rain.
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Edited to add: Tucson started out April with a new record maximum for the 1st of 95F - no fooling.