Winter

A snow-covered park in Pittsburgh, Pennsylvania, during winter

Winter is the coldest season of the year in polar and temperate climates (winter does not occur in tropical climates). It occurs after autumn and before spring in each year. Winter is caused by the axis of the Earth in that hemisphere being oriented away from the Sun. Different cultures define different dates as the start of winter, and some use a definition based on weather. When it is winter in the Northern Hemisphere, it is summer in the Southern Hemisphere, and vice versa. In many regions, winter is associated with snow and freezing temperatures. The moment of winter solstice is when the sun's elevation with respect to the North or South Pole is at its most negative value (that is, the sun is at its farthest below the horizon as measured from the pole). The day on which this occurs has the shortest day and the longest night. The earliest sunset and latest sunrise dates outside the polar regions differ from the date of the winter solstice, however, and these depend on latitude, due to the variation in the solar day throughout the year caused by the Earth's elliptical orbit (see earliest and latest sunrise and sunset).

Other Languages
адыгабзэ: КӀымаф
Afrikaans: Winter
Alemannisch: Winter
Ænglisc: Winter
Аҧсшәа: Аӡын
العربية: شتاء
aragonés: Hibierno
ܐܪܡܝܐ: ܣܬܘܐ
armãneashti: Earnâ
asturianu: Iviernu
Avañe'ẽ: Araro'y
Aymar aru: Autipacha
azərbaycanca: Qış
تۆرکجه: قیش
বাংলা: শীত
Bân-lâm-gú: Koâⁿ-lâng
башҡортса: Ҡыш
беларуская: Зіма
беларуская (тарашкевіца)‎: Зіма
भोजपुरी: जाड़ा
български: Зима
Boarisch: Winta
བོད་ཡིག: དགུན་ཁ།
bosanski: Zima
brezhoneg: Goañv
català: Hivern
Чӑвашла: Хĕлле
čeština: Zima
Cymraeg: Gaeaf
dansk: Vinter
Deutsch: Winter
dolnoserbski: Zyma
eesti: Talv
Ελληνικά: Χειμώνας
emiliàn e rumagnòl: Invêren
эрзянь: Теле
español: Invierno
Esperanto: Vintro
estremeñu: Iviernu
euskara: Negu
فارسی: زمستان
føroyskt: Vetur
français: Hiver
Frysk: Winter
furlan: Unvier
Gaeilge: Geimhreadh
Gaelg: Geurey
galego: Inverno
ગુજરાતી: શિયાળો
客家語/Hak-kâ-ngî: Tûng-kui
хальмг: Үвл
한국어: 겨울
Հայերեն: Ձմեռ
हिन्दी: शीत ऋतु
hornjoserbsce: Zyma
hrvatski: Zima
Ido: Vintro
Ilokano: Panaglalam-ek
Bahasa Indonesia: Musim dingin
interlingua: Hiberno
Interlingue: Hiverne
Ирон: Зымæг
isiXhosa: UBusika
íslenska: Vetur
italiano: Inverno
עברית: חורף
Basa Jawa: Mangsa adhem
ಕನ್ನಡ: ಚಳಿಗಾಲ
Kapampangan: Karimlan
ქართული: ზამთარი
kaszëbsczi: Zëma
қазақша: Қыс
Kiswahili: Majira ya baridi
коми: Тӧв
Kreyòl ayisyen: Livè
Kurdî: Zivistan
кырык мары: Тел
лакку: КӀи
лезги: Кьуьд
Latina: Hiems
latviešu: Ziema
Lëtzebuergesch: Wanter
lietuvių: Žiema
Livvinkarjala: Talvi
lumbaart: Envéren
magyar: Tél
македонски: Зима
മലയാളം: ശിശിരം
मराठी: हिवाळा
მარგალური: ზოთონჯი
مازِرونی: زمستون
Bahasa Melayu: Musim sejuk
Mìng-dĕ̤ng-ngṳ̄: Dĕ̤ng-tiĕng
монгол: Өвөл
မြန်မာဘာသာ: ဆောင်းရာသီ
Nāhuatl: Cehuetzilizpan
Nederlands: Winter
Nedersaksies: Wienter
नेपाली: शिशिर ऋतु
नेपाल भाषा: चिकुला
日本語:
Napulitano: Vierno
нохчийн: Ӏа
Nordfriisk: Wonter
Norfuk / Pitkern: Winta
norsk: Vinter
norsk nynorsk: Vinter
Nouormand: Hivé
occitan: Ivèrn
олык марий: Теле (пагыт)
oʻzbekcha/ўзбекча: Qish
ਪੰਜਾਬੀ: ਸਿਆਲ
پنجابی: پالا
پښتو: ژمی
Перем Коми: Тӧв
ភាសាខ្មែរ: រដូវរងា
polski: Zima
português: Inverno
Ripoarisch: Wengkter
română: Iarnă
Runa Simi: Chiri mit'a
русский: Зима
саха тыла: Кыһын
संस्कृतम्: शिशिरः
Scots: Winter
shqip: Dimri
sicilianu: Mmernu
Simple English: Winter
سنڌي: سيارو
slovenčina: Zima
slovenščina: Zima
Soomaaliga: Jiilaal
کوردی: زستان
српски / srpski: Зима
srpskohrvatski / српскохрватски: Zima
suomi: Talvi
svenska: Vinter
Tagalog: Taglamig
татарча/tatarça: Кыш
తెలుగు: చలికాలం
тоҷикӣ: Зимистон
Türkçe: Kış
Türkmençe: Gyş
тыва дыл: Кыш
українська: Зима
ئۇيغۇرچە / Uyghurche: قىش
vèneto: Inverno
vepsän kel’: Tal'v
Tiếng Việt: Mùa đông
Võro: Talv
walon: Ivier
文言:
West-Vlams: Winter
Winaray: Kathagkot
吴语: 冬天
ייִדיש: ווינטער
粵語: 冬天
Zazaki: Zımıstan
žemaitėška: Žėima
中文: 冬季
डोटेली: शिशिर ऋतु