Archives for Spring Equinox

The Nature of Phenology 3/23/19

Producers/Hosts: Hazel Stark and Joe Horn

Spring Equinox

Photos, a full transcript, references, contact information, and more available at

March 20th marked our celestial halfway point in our travels from winter to summer: the spring equinox. Rather than our axis being pointed towards the sun, as it is in summer, or pointed away from the sun, as it is in winter, during an equinox, our axis is exactly half way to either extreme. This means that on March 20th we had almost exactly 12 hours of daytime and 12 hours of nighttime.