With summer winding down, I wondered: How much does the amount of sunshine and humidity vary among U.S. cities?
First, this map shows the average percentage of possible sunshine by city. (Yuma, AZ, has sun about 90% of the year; Juneau, AK, gets it about 30%). Larger bubbles represent higher percentages of sunshine (click the images for larger, interactive versions):
This map shows (a slightly different) list of cities and their annual average relative humidity in the afternoon:
I’m not sure whether these maps are effective — or whether they should be maps at all. But I wanted to try another quick experiment with CartoDB.