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Say Goodbye To Meteorological Winter

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Say Goodbye To Meteorological Winter

We get a lot of questions from readers here at the Farmers’ Almanac, and we do our best to answer each one. This was a recent question about meteorological winter via Facebook:

Q: What’s the difference between meteorological winter and astronomical winter?

A: Meteorologists define “winter” as the three coldest months of the year: December, January and February. So to them, winter begins on December 1st and ends on February 28th.

Astronomers, on the other hand, determine winter by when the noontime Sun reaches its farthest point south in the sky; or when the Sun’s rays shine down from a point directly overhead as seen from the tropic of Capricorn (latitude 23.5 degrees south), known as the Winter Solstice. That happens on December 21 or 22, depending on the year. Astronomers call that the start of winter in the Northern Hemisphere, and it continues as such until the direct solar rays shine down on the equator at the vernal or spring equinox on March 20th.

In short, the winter you are familiar with, by the calendar, is “astronomical,” and the cold months that your meteorologist chats about on the evening news is our “meteorological winter.” We’ll bid farewell to meteorological winter today, the last day of February!

(Continued Below)

What do you think: should December 1 be the official start of winter? Share your thoughts in the comments below.

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3 comments

1 Kris P { 03.02.18 at 8:33 am }

I’m a fan of astrological seasons. I’m glad its not “Winter” until nearly the celebration of Christmas or “Jule.” Its 2 March today and the rain forecasted is SNOW! But I’ve benn brought up ‘March comes in like a lion, goes out like a lamb.’ Warmer days in December, January or February are bonuses!!

2 Susan Higgins { 03.01.18 at 4:01 pm }

Hi Michelle, check out our long range forecast for your zone, which is Zone 4. Other states within your zone did see significant snowfall, this year, however. http://farmersalmanac.wpengine.com/long-range-weather-forecast/north-central-us/

3 Michelle Lewis { 03.01.18 at 10:39 am }

Hello , Im just wondering if St. Louis MO and South will see any Snow yet this year ? More than and inch ? Hoping for 6-8 inches. Im a Snow Bunny

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