The 2012 Summer Solstice

It's the first official day of summer and the longest day of the year. What are you doing in Cuyahoga Falls to take full advantage of the warm and sunny weather?

Today is the first day of summer in Cuyahoga Falls, also known as the summer solstice. It's the longest day of the year (and the shortest night).

The actual moment of the solstice will occur at about 7:09 p.m. this evening, while the sun sits directly above the Pacific Ocean to the west of Hawaii.

As you may remember from your grade school science lessons, the seasons and the changing lengths of the day and night throughout the year are a result of the Earth's axial tilt.

Try to visualize the Earth's orbit around the sun as an elliptical path on an imaginary plane in space. As the Earth rests in that plane, its north and south poles—the ends of its axis—do not point straight "up" and "down." The axis is instead about 23.4 degrees off the "vertical."

As a result, the northern and southern hemisphere do not receive equal amounts of sunshine throughout the year. Right now, the northern hemisphere is "leaning" towards the sun. From tonight until the winter solstice on December 21, as the Earth continues around the sun, that tilt in the planet's axis will be "leaning" our hemisphere less towards the sun each day. 

If not for the tilt of the Earth's axis, we would not have seasons. The day and night would be exactly the same length, year round. The northern and southern hemispheres would share the sun's light equally. Right now, that only happens on the days of the spring and fall equinoxes (March 20 and September 22, this year).

Since the time of sunrise and sunset are rounded to the nearest minute, today, in Northeast Ohio is actually the first of the three longest days of the year. Today, tomorrow, and Friday we will bask in a whopping 15 hours, four minutes of daylight. 

If the sun and heat gets to be a bit too much, consider the flip side of today's solstice: for our friends in the southern hemisphere, today is the winter solstice. In Punta Arenas, Chile, the high today will be in the mid to upper 30s.


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