Tree Frog Forestry News

Everything You Need to Know About the Summer Solstice

The Farmer’s Almanac
June 21, 2019
Category: Froggy Foibles

First day of summer solstice, an event when the sun is at its highest point in the sky. In 2019, it arrives today, Friday June 21, at 8:54 Pacific Standard Time. The word “solstice” comes from Latin solstitium—from sol (Sun) and stitium (still or stopped), reflecting the fact that on the solstice, the Sun appears to stop “moving” in the sky as it reaches its northern- or southernmost point (declination) for the year, as seen from Earth. So why the lag between the longest day of the year and the highest average daily temperature of the year? According to the Farmer’s Almanac, it’s because the Earth’s thermal mass is still gathering heat from the longer days and warming gradually. The warmest day of winter doesn’t occur for another month and a half. 

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