{"id":11105,"date":"2021-09-01T09:42:09","date_gmt":"2021-09-01T16:42:09","guid":{"rendered":"http:\/\/ltsarizona.org\/douglas-charter-school\/?p=11105"},"modified":"2021-09-01T09:42:09","modified_gmt":"2021-09-01T16:42:09","slug":"why-summer-ends-and-autumn-begins-this-month","status":"publish","type":"post","link":"https:\/\/ltsarizona.org\/douglas-charter-school\/why-summer-ends-and-autumn-begins-this-month\/","title":{"rendered":"Why Summer Ends and Autumn Begins This Month"},"content":{"rendered":"

For some people \u2014 mainly kids and their parents \u2014 summer ends on the first day of school. Other people feel like summer ends on Labor Day weekend. Scientifically, however, summer ends and autumn begins each year on September 22, or sometimes, on September 23. (It\u2019ll occur on September 23 in 2023.) The day on which autumn arrives is called the autumnal equinox.\u00a0<\/span><\/p>\n

<\/p>\n

This year, autumn in Tucson will begin on Wednesday, September 22, at 12:21 p.m. local time. But what is it about this date that makes it the first day of autumn?\u00a0<\/span><\/p>\n

The<\/span> autumnal equinox<\/span><\/a> happens when daytime and nighttime are the same length in both hemispheres. The word equinox means \u201cequal night\u201d in Latin, which is exactly what happens on September 22. The 24-hour day will be divided evenly into 12 hours of daylight and 12 hours of nighttime all over the Earth. The day and time of the equinox always varies from year to year because, while we think of a year as being 365 days, the earth takes a little more than that \u2014 365.25 days, to be more exact \u2014 to orbit the sun and so time of the equinox is not exactly the same each year.\u00a0<\/span><\/p>\n

Why is there more daylight in summer and more night in winter?<\/span> The Earth is tilted<\/span><\/a> by 23.5 degrees in relation to the sun. Consequently, either the Southern Hemisphere (the part of the globe south of the equator) or the Northern Hemisphere (the part of the globe north of the equator) usually tilt a little more towards the sun. But twice a year, in the spring and fall, the sun rises and sets directly over Earth\u2019s equator.\u00a0<\/span><\/p>\n

The graphic below shows how, for those who live in the northern hemisphere, the earth is tilted away from the sun in winter, and towards the sun in summer.<\/span><\/p>\n

\"Earths<\/p>\n

The autumnal equinox is a result of the sun crossing the earth\u2019s equator from north to south so that, for six months, the sun will spend less time shining on the northern half of the earth. The sun will again start spending more time shining on the northern hemisphere beginning around March 20, the spring equinox (known as the vernal equinox) when the day and night will again be the same length.\u00a0<\/span><\/p>\n

Just as the autumnal equinox marks the end of summer and the beginning of autumn, the vernal equinox marks the end of winter and the beginning of spring. On the two annual equinox days, the sun will rise<\/span> exactly due east and set precisely due west<\/span><\/a>, no matter where on earth you live.<\/span><\/p>\n

The amount of time the sun shines on the northern hemisphere will continue to get shorter each day until the<\/span> winter solstice<\/span><\/a>, the shortest day and the longest night in the northern hemisphere. After the winter solstice, daylight hours will once again begin to increase.<\/span><\/p>\n

After a hot Arizona summer, we\u2019re probably all looking forward to cooler weather. Although it won\u2019t get cooler for a while, at least summer is officially over, so bring out your jackets and make some hot chocolate because, this month, fall officially arrives!<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

For some people \u2014 mainly kids and their parents \u2014 summer ends on the first day of school. Other people feel like summer ends on Labor Day weekend. Scientifically, however,… Read more »<\/a><\/p>\n","protected":false},"author":1,"featured_media":11106,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false},"version":2}},"categories":[1],"tags":[],"class_list":["post-11105","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-school-news"],"jetpack_publicize_connections":[],"acf":[],"yoast_head":"\nWhy Summer Ends and Autumn Begins This Month | Liberty Traditional Schools: Saddleback | Douglas Charter School<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/ltsarizona.org\/douglas-charter-school\/why-summer-ends-and-autumn-begins-this-month\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Why Summer Ends and Autumn Begins This Month | Liberty Traditional Schools: Saddleback | Douglas Charter School\" \/>\n<meta property=\"og:description\" content=\"For some people \u2014 mainly kids and their parents \u2014 summer ends on the first day of school. 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