Autumnal equinox occurs Sunday - NBC12 - WWBT - Richmond, VA News On Your Side

Autumnal equinox occurs Sunday

Rain will be the big weather story tonight around the area as a cold front is moving across our region. If your plans take you out to dinner, a movie etc., don't leave the house without a rain coat or umbrella. That rain could come down moderate to even heavy at times a bit later on in the evening.

The weather is going to be clearing out for the official arrival of Fall tomorrow. In fact, the Autumnal Equinox will take place at 4:44 p.m. The word "Equinox" meaning equal day and night. The Earth's position relative to the sun will be such that the direct rays of the sun will be experienced on the equator tomorrow giving equal amounts of daylight and darkness to that area. Since we are north of the equator, there is a slight lag in the timing so our equal amount of daylight and darkness won't occur until later next week.

Thanks to the Earth's 23.5° tilt on its axis, the days will continue to grow shorter as the Northern Hemisphere tilt's further and further away from the direct rays of the sun. We'll reach the shortest day of the year on December 21st (Winter Solstice).

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