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Is it grammatically correct to say it's 1 degrees outside or is it 1 degree outside? (Talking about the weather in Buffalo, New York.)

aedia λ
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2 Answers2

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No it is not correct. 1 is a singular unit, so at 1 degree you are one unit above your zero point.

You can have 1 or -1 degree outside. Anything else should be plural.

Jacobm001
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I would say 1 degrees is correct. We are not discussing an amount of things. 1 is not number of degrees that exsist. It isn't the same as saying 1 cookie. Rather 1 is an idication of your possition on a scale called degrees. I would even venture that it is incorrect to say 1 degree celcius or fahrenheit.

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    It doesn’t matter whether we are counting a number of degrees that exist or not. The number 1 always mandatorily takes the singular. You also did not do something one hours or one days ago. It is in no way incorrect to say it’s 1 degree, regardless of whether you’re talking Celsius or Fahrenheit, but the plural form would be considered ungrammatical by virtually all native speakers. – Janus Bahs Jacquet Dec 17 '18 at 00:02