January

Also known as Jan, 1. month

January is the first month of the year in the Julian and Gregorian calendars. Its length is 31 days. The first day of the month is known as New Year's Day. It is, on average, the coldest month of the year within most of the Northern Hemisphere (where it is the second month of winter) and the warmest month of the year within most of the Southern Hemisphere (where it is the second month of summer). In the Southern hemisphere, January is the seasonal equivalent of July in the Northern hemisphere and vice versa.

AI overview

January is the first month of the year in both the Julian and Gregorian calendars, containing 31 days and beginning with New Year's Day. It matters because it marks the start of the calendar year and represents opposite seasons in the two hemispheres—typically the coldest month in the Northern Hemisphere and the warmest in the Southern Hemisphere.

AI-generated from the Wikipedia summary — may contain errors.

~16 min read

Encyclopedic overview

10 sections

Contents

History
Symbols
Observances
Month-long
Food months in the United States
Non-Gregorian
Moveable
Fixed
References
External links

Ancient Roman observances during this month include Cervula and Juvenalia, celebrated January 1, as well as one of three Agonalia, celebrated January 9, and Carmentalia, celebrated January 11. These dates do not correspond to the modern Gregorian calendar.

Excerpted from Wikipedia’s “January” article, available under the CC BY-SA 4.0 licence.