'''Januari''' är årets första månad i den lat. ''Januãrius'', "helgad åt mytologisk förklaring. I Sydsverige och Danmark är namnet istället förknippat med månaden mars och guden Tor.

Under mm (där Stora och Lilla luleälven bildas, nordvästra Lappland) och 20 millimeter på ett flertal platser (Lapplands skogsland, Stockholmsregionen, med flera)

==Det händer i januari==
===Högtider===
*Nyårsdagen den 1 januari.
*Martin Luther King Day i USA den tredje måndagen i januari.

===Politik===
*Fram till 1996 brukade budgetpropositionen till Sveriges riksdag presenteras omkring den 10 januari. Sedan dess presenteras den i september/oktober.
*Sedan USA:s nyvalda presidenter tillträda sitt ämbete den 20 januari året efter valåret. Ursprungligen brukade detta ske den 4 mars året efter valåret.

===Sport===
====Ishockey====
*Europeiska klubbmästerskapet i ishockey spelas.

==Samband==
*Januari börjar alltid på samma veckodag som oktober, om det inte är skottår. Om det är skottår börjar januari på samma veckodag som april och juli

==Extern länk==
*[http://www.smhi.se/sgn0102/images/p35.gif Januaris medeltemperatur i Sverige 1961–1990]
*[http://www.smhi.se/sgn0102/images/p105.gif Januaris medelnederbörd i Sverige 1961–1993]

als:Januar
am:ጃንዩዌሪ

ang:Æfterra Gēola

arc:ܟܢܘܢ ܒ

ay:Chichu phaxsi

ba:Ғинуар (Һыуығай)
bat-smg:Sausis

be-x-old:Студзень

bug:Januari

cbk-zam:Enero

co:Ghjennaghju

csb:Stëcznik
cv:Кăрлач

dsb:Wezymski
dv:ޖެނުއަރީ
ee:Dzove

eo:Januaro
es:Enero

ext:Eneru

fiu-vro:Vahtsõaastakuu
fo:Januar

frp:Janviér
fur:Zenâr
fy:Jannewaris
ga:Eanáir
gan:一月
gd:Am Faoilleach

gn:Jasyteĩ
gv:Jerrey Geuree

hif:January

hsb:Januar

hy:Հունվար
ia:Januario

ie:Januar
ig:January
ilo:Enero

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'''January''' is the first Julian and Gregorian calendars, and one of seven Gregorian months with the length of 31 days. It is, on average, the coolest month of the year within most of the Northern Hemisphere and the warmest month of the year within most of the Southern Hemisphere, characterizing the onset of the Winter and Summer in both hemispheres respectively.

January begins (astrologically) with the sun in the sign of Capricorn and ends in the sign of Aquarius. Astronomically speaking, the sun begins in the constellation of Sagittarius and ends in the constellation of Capricornus. 

January is named for Janus (Ianuarius), the god of the doorway; the name has its beginnings in Roman mythology, coming from the Latin word for door (''ianua'') - January is the door to the year. 
Traditionally, the original Roman calendar consisted of 10 months, totalling 304 days, winter being considered a monthless period. Around 713 BC, the semi-mythical successor of Romulus, King Numa Pompilius, is supposed to have added the months of January and February, allowing the calendar to equal a standard lunar year (355 days). The first day of the month is known as New Year's Day. Although March was originally the first month in the old Roman Calendar, January assumed that position beginning in 153 BC when the two consuls, for whom the years were named, began to be chosen on January 1.  The reason for this shift of the new year into the dead of winter was to allow the new consuls to complete the elections and ceremonies upon becoming consuls, and still reach their respective consular armies by the start of the campaigning. 
right|thumb|January, from the ''[[Très Riches Heures du Duc de Berry'']]

Various Christian feast dates were used for the New Year in Europe in the Middle Ages, including March 25 and December 25. However, medieval calendars were displayed in the Roman fashion of twelve columns from January to December. Beginning in the 16th century, European countries began officially making January 1 the start of the New Year once again — sometimes called ''Circumcision Style'' because this was the date of the Feast of the Circumcision, being the 8th day from December 25.

Historical names for January include its original Roman designation, Ianuarius, the Saxon term Wulf-monath (meaning wolf month) and Finnish, the month is called ''tammikuu'', meaning ''month of the oak'', but the original meaning was ''the month of the heart of winter'', as ''tammi'' has initially meant ''axis'' or ''core''. This month is in Czech called ''leden'', meaning ''ice month''.

The first Monday in January is known as Epiphany.

The Coming of Age day in Japan is the second Monday of January, for those becoming 20 years old in the new calendar year. It is a national holiday. The day has been celebrated since 1948, but fell on January 15 until 1999, when it was moved by the Japanese government in an attempt to lift the economy by making more holidays consecutive.

In the pagan wheel of the year, January ends at or near to Imbolc in the northern hemisphere and Lughnasadh in the southern hemisphere.

It is the middle month of summer in the Southern Hemisphere and the middle of winter in the Northern.

January starts on the same day of the week as October in common years, and April and July in leap years.

==Events in January==

===Holidays===
*New Year's Day - January 1
*Coptic Christmas - January 7
*Coming-of-Age Day (成人の日 Seijin no hi) in Japan - Second Monday
*Martin Luther King, Jr. Day in the United States - Third Monday
*Australia Day in Australia - January 26
*Republic Day in India - January 26
*Auckland Anniversary in Auckland, New Zealand - Monday closest to January 29

==January symbols==
thumb|right|150px|The [[camellia, Japan's floral emblem of January]]
*January's birthstone is the garnet
*Its birth flower is the carnation or snowdrop
*The Chinese floral emblem of January is the plum blossom
*The Japanese floral emblem of January is the camellia

Category:Months
*

als:Januar
am:ጃንዩዌሪ
ang:Æfterra Gēola

arc:ܟܢܘܢ ܒ
frp:Janviér

gn:Jasyteĩ
ay:Chichu phaxsi

zh-min-nan:1 goe̍h
ba:Ғинуар (Һыуығай)

be-x-old:Студзень

cv:Кăрлач

co:Ghjennaghju

dv:ޖެނުއަރީ
dsb:Wezymski

es:Enero
eo:Januaro

ee:Dzove

ext:Eneru
fo:Januar

fy:Jannewaris
fur:Zenâr
ga:Eanáir
gv:Jerrey Geuree
gd:Am Faoilleach