Barter Island Arpt climate by month

Averages and records for each calendar month at Barter Island Arpt, United States, from 1947 to 2026. The warmest month is July, averaging 7.6°C; the coolest is February at −25.2°C.

Average and record high and low temperature for each calendar month at Barter Island Arpt, with the number of years behind each figure.
Month	Avg high	Avg low	Record high	Record low	Years
January	−21.9°C	−29.1°C	3.9°C19 January 1962	−47.8°C12 January 1975	42 / 59
February	−25.2°C	−32.2°C	2.8°C4 February 1982	−50.6°C12 February 1950	42 / 57
March	−22.0°C	−29.8°C	2.2°C15 March 1967	−46.1°C10 March 1973	44 / 57
April	−13.5°C	−22.5°C	6.1°C26 April 1958	−42.2°C4 April 1987	46 / 58
May	−3.0°C	−8.8°C	11.1°C29 May 1964	−26.7°C1 May 1964	46 / 58
June	3.5°C	−1.0°C	20.0°C26 June 1976	−12.8°C2 June 2011	42 / 57
July	7.6°C	1.6°C	25.6°C28 July 1974	−4.4°C7 July 1967	43 / 55
August	6.7°C	1.4°C	22.2°C16 August 1957	−6.7°C24 August 1986	43 / 58
September	1.8°C	−2.3°C	18.9°C5 September 1986	−15.6°C26 September 1970	40 / 59
October	−6.0°C	−11.7°C	9.4°C4 October 2012	−32.2°C21 October 1983	45 / 58
November	−14.6°C	−21.3°C	5.0°C1 November 2021	−46.1°C30 November 1948	43 / 58
December	−20.7°C	−27.8°C	2.8°C31 December 1973	−46.1°C24 December 1961	44 / 58

Years shows the number behind the average high, then the number holding a record for that month. They differ because a year contributes an average only when the month has at least 25 days of readings, while a single reading is enough to set a record. The average low is withheld on the same 25-day rule and is counted separately again; it is shown as a dash where the archive cannot support it. Across the twelve months here the averages rest on 40 to 46 years each.

Hottest on record25.6°C28 July 1974Source: NOAA GHCN-Daily

Coldest on record−50.6°C12 February 1950Source: NOAA GHCN-Daily

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Every figure on this page is computed from NOAA GHCN-Daily observations stored per station, per year, per month. Nothing is modelled, interpolated or estimated, and a month the archive never covered is left out rather than filled in. A station appears here only once all twelve months carry an average from at least 10 years. See how this is built.

Barter Island Arpt climate by month

Averages and records for each calendar month at Barter Island Arpt, United States, from 1947 to 2026. The warmest month is July, averaging 7.6°C; the coolest is February at −25.2°C.

Average and record high and low temperature for each calendar month at Barter Island Arpt, with the number of years behind each figure.
Month	Avg high	Avg low	Record high	Record low	Years
January	−21.9°C	−29.1°C	3.9°C19 January 1962	−47.8°C12 January 1975	42 / 59
February	−25.2°C	−32.2°C	2.8°C4 February 1982	−50.6°C12 February 1950	42 / 57
March	−22.0°C	−29.8°C	2.2°C15 March 1967	−46.1°C10 March 1973	44 / 57
April	−13.5°C	−22.5°C	6.1°C26 April 1958	−42.2°C4 April 1987	46 / 58
May	−3.0°C	−8.8°C	11.1°C29 May 1964	−26.7°C1 May 1964	46 / 58
June	3.5°C	−1.0°C	20.0°C26 June 1976	−12.8°C2 June 2011	42 / 57
July	7.6°C	1.6°C	25.6°C28 July 1974	−4.4°C7 July 1967	43 / 55
August	6.7°C	1.4°C	22.2°C16 August 1957	−6.7°C24 August 1986	43 / 58
September	1.8°C	−2.3°C	18.9°C5 September 1986	−15.6°C26 September 1970	40 / 59
October	−6.0°C	−11.7°C	9.4°C4 October 2012	−32.2°C21 October 1983	45 / 58
November	−14.6°C	−21.3°C	5.0°C1 November 2021	−46.1°C30 November 1948	43 / 58
December	−20.7°C	−27.8°C	2.8°C31 December 1973	−46.1°C24 December 1961	44 / 58

Hottest on record25.6°C28 July 1974Source: NOAA GHCN-Daily

Coldest on record−50.6°C12 February 1950Source: NOAA GHCN-Daily