Color the picture by clicking on a color swatch at the bottom of the image then click on the image where you want to apply that color. Color off-line by downloading and printing the pdf version.
On September 23rd (occasionally the 22nd), autumn or fall equinox occurs. From the Latin word for equal night, the fall equinox is when the lengths of the daylight and nighttime everywhere on Earth are equal, that is 12 hours.
Learn more about our weather in JetStream - An Online School for Weather.