Amundsen-South Pole climate by month

Averages and records for each calendar month at Amundsen-South Pole, Antarctica, from 1957 to 2025. The warmest month is January, averaging −26.3°C; the coolest is August at −56.0°C.

Average and record high and low temperature for each calendar month at Amundsen-South Pole, with the number of years behind each figure.
Month	Avg high	Avg low	Record high	Record low	Years
January	−26.3°C	−29.8°C	−14.4°C12 January 1958	−41.1°C31 January 1965	37 / 63
February	−38.1°C	−43.0°C	−20.6°C3 February 1984	−58.9°C29 February 1984	37 / 63
March	−50.4°C	−57.2°C	−26.7°C25 March 1975	−71.1°C25 March 1983	38 / 61
April	−53.6°C	−61.0°C	−27.8°C13 April 1968	−75.0°C8 April 1982	38 / 61
May	−53.8°C	−61.9°C	−30.6°C3 May 1981	−78.3°C26 May 1982	39 / 60
June	−54.6°C	−62.4°C	−31.1°C14 June 1963	−82.8°C23 June 1982	37 / 60
July	−55.9°C	−63.3°C	−31.9°C9 July 2023	−80.6°C21 July 1965	39 / 60
August	−56.0°C	−63.7°C	−32.5°C26 August 2023	−79.3°C2 August 2005	39 / 60
September	−55.5°C	−63.0°C	−29.4°C13 September 1983	−79.4°C25 September 1986	37 / 59
October	−48.3°C	−53.9°C	−28.8°C11 October 2005	−72.0°C5 October 2007	38 / 61
November	−36.7°C	−40.2°C	−18.9°C22 November 1957	−55.0°C1 November 1981	40 / 62
December	−26.4°C	−29.3°C	−13.9°C14 December 1984	−42.0°C1 December 1999	37 / 61

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 37 to 40 years each.

Hottest on record−13.9°C14 December 1984Source: NOAA GHCN-Daily

Coldest on record−82.8°C23 June 1982Source: 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.

Amundsen-South Pole climate by month

Averages and records for each calendar month at Amundsen-South Pole, Antarctica, from 1957 to 2025. The warmest month is January, averaging −26.3°C; the coolest is August at −56.0°C.

Average and record high and low temperature for each calendar month at Amundsen-South Pole, with the number of years behind each figure.
Month	Avg high	Avg low	Record high	Record low	Years
January	−26.3°C	−29.8°C	−14.4°C12 January 1958	−41.1°C31 January 1965	37 / 63
February	−38.1°C	−43.0°C	−20.6°C3 February 1984	−58.9°C29 February 1984	37 / 63
March	−50.4°C	−57.2°C	−26.7°C25 March 1975	−71.1°C25 March 1983	38 / 61
April	−53.6°C	−61.0°C	−27.8°C13 April 1968	−75.0°C8 April 1982	38 / 61
May	−53.8°C	−61.9°C	−30.6°C3 May 1981	−78.3°C26 May 1982	39 / 60
June	−54.6°C	−62.4°C	−31.1°C14 June 1963	−82.8°C23 June 1982	37 / 60
July	−55.9°C	−63.3°C	−31.9°C9 July 2023	−80.6°C21 July 1965	39 / 60
August	−56.0°C	−63.7°C	−32.5°C26 August 2023	−79.3°C2 August 2005	39 / 60
September	−55.5°C	−63.0°C	−29.4°C13 September 1983	−79.4°C25 September 1986	37 / 59
October	−48.3°C	−53.9°C	−28.8°C11 October 2005	−72.0°C5 October 2007	38 / 61
November	−36.7°C	−40.2°C	−18.9°C22 November 1957	−55.0°C1 November 1981	40 / 62
December	−26.4°C	−29.3°C	−13.9°C14 December 1984	−42.0°C1 December 1999	37 / 61

Hottest on record−13.9°C14 December 1984Source: NOAA GHCN-Daily

Coldest on record−82.8°C23 June 1982Source: NOAA GHCN-Daily