Cold is the night . . .

Cold is the night . . .
When the stars shine bright.

The more moisture there is in the sky, the more the light from the sun, moon, and stars is dimmed or reddened. A very clear sky permits more starlight to penetrate, thus the stars appear brighter. Moisture tends to hold in the day’s heat like a blanket. The less moisture there is in the air at night, the more the temperature tends to fall. Thus, the brighter the stars appear, the cooler is the night.