Delyankir has an extreme subarctic climate (Köppen climate classificationDwd) with very short and mild summers with cool nights (in spite of white nights), followed by very long, dry, and extremely cold winters. Although summers are very mild on average, sometimes it can be surprisingly hot, especially for a place with such northerly latitude. The highest recorded temperature in July was 35.1 °C. It is one of the coldest places in the northern hemisphere and the world, alongside Oymyakon and Verkhoyansk. On the night of December 8–9, 2021, the temperature went down to -61.1ºС, making it the coldest temperature recorded in December. Although in terms of the lowest-ever recorded temperature Oymyakon remains the coldest verifiable location, the year-round average temperature recorded at Delyankir's weather station between 1951 and 1989 was −16.8 °C (1.8 °F), lower than that of Oymyakon.[7]
Delyankir is also one of the rare places in the world with a temperature amplitude higher than 100 °C (180 °F).
^ abThis figure is given for the rural population of Artyk Urban Settlement, a municipal formation in Oymyakonsky Municipal District. According to Law #173-Z 353-III, Delyankir is the only rural locality on the territory of this municipal formation.
Official website of the Sakha Republic. Registry of the Administrative-Territorial Divisions of the Sakha Republic. Oymyakonsky District. (in Russian)
Государственное Собрание (Ил Тумэн) Республики Саха (Якутия). Закон №173-З №353-III от 30 ноября 2004 г. «Об установлении границ и о наделении статусом городского и сельского поселений муниципальных образований Республики Саха (Якутия)», в ред. Закона №1058-З №1007-IV от 25 апреля 2012 г. «О внесении изменений в Закон Республики Саха (Якутия) "Об установлении границ и о наделении статусом городского и сельского поселений муниципальных образований Республики Саха (Якутия)"». Вступил в силу со дня официального опубликования. Опубликован: "Якутия", №245, 31 декабря 2004 г. (State Assembly (Il Tumen) of the Sakha (Yakutia) Republic. Law #173-Z No. 353-III of November 30, 2004 On Establishing the Borders and on Granting the Urban and Rural Settlement Status to the Municipal Formations of the Sakha (Yakutia) Republic, as amended by the Law #1058-Z No. 1007-IV of April 25, 2012 On Amending the Law of the Sakha (Yakutia) Republic "On Establishing the Borders and on Granting the Urban and Rural Settlement Status to the Municipal Formations of the Sakha (Yakutia) Republic". Effective as of the day of the official publication.).