Windsor, CA: how dark is the sky here?

Windsor's sky measures suburban edge here. A noticeable glow near the horizon. Brighter stars and constellations are easy to pick out; the Milky Way is washed out. That's brighter than 41.1% of the 3,206 US cities in this dataset.

This comes from a satellite measuring light radiating upward, not a person's eyes on the ground, so it isn't the same as a Bortle class, though the two track each other closely.

How far Windsor is from a meaningfully darker sky

The closest place in this dataset with a meaningfully darker sky is San Anselmo, CA, roughly 41 miles away in a straight line, rated rural. Road distance will be more.

San Anselmo, CA is itself still a measured city, not a designated dark-sky park, this only compares against the 3,206 places this dataset covers.

How Windsor compares nationally

Windsor, CA counts roughly 25,846 residents, among the 3,206 US cities this site tracks. Windsor places 1,312 of 3,206 cities in this dataset's darkest-to-brightest order.