Spring is finally here, sort of. What is solar spring and what does it mean?

Spring has arrived! Well, it's kind of arrived.

According to the National Weather Service, solar winter has ended this week.

It still might snow and despite high temperatures hitting 60 this weekend, we still could see freezing temperatures. But, solar spring has arrived.

What is solar spring?

Solar spring runs from Feb. 5 through May 4, and it's when daylight increases the fastest rate of the year.

What are solar seasons?

Solar seasons are determined by the amount of light within a season.

Solar winter, which runs from early November to early February is the period of the year with the least amount of light.

Solar summer runs from early May through early August. It's the period with the most possible daylight.

Solar fall runs from early August through early November. It's the time of the year when the amount of daylight reduces the quickest.

What are the different types of seasons?

Along with the solar season, there are meteorological and astronomical seasons.

According to the National Oceanic and Atmospheric Administration, astronomical seasons are based on the position of the Earth in relation to the sun. The Earth’s annual trip around the sun forms the basis for the astronomical calendar in which seasons are defined by two solstices (winter and summer) and two equinoxes (spring and fall).

Meteorological seasons are three-month groupings based on the annual temperature cycle. We generally think of winter as the coldest time of the year and summer as the warmest time of the year, with spring and fall being the transition seasons.

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This article originally appeared on Delaware News Journal: What is solar spring and when did it start?