Clear Nights

This shows the number of nights that were over 75% clear* by time.

Night Percentage Clearness

This shows the number of nights per percentage of clearness* by time.

Night Clearness Histogram

This shows the total amount of time that the sky was a certain color.

Night Clearness Trends

This shows the ratio of the sky colors by time per night.

* "Clearness" is here defined as colors that have an HSV hue value over 0.35.