Nullarbor climate by month
Averages and records for each calendar month at Nullarbor, Australia, from 1986 to 2026. The warmest month is January, averaging 28.1°C; the coolest is July at 18.4°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 28.1°C | 16.0°C | 48.5°C2 January 1990 | 3.5°C4 January 1989 | 39 / 40 |
| February | 27.9°C | 16.1°C | 47.6°C17 February 2007 | 7.0°C16 February 2002 | 37 / 40 |
| March | 26.8°C | 14.6°C | 45.3°C1 March 2019 | 5.0°C15 March 2002 | 37 / 40 |
| April | 25.0°C | 11.9°C | 42.2°C9 April 2018 | 2.0°C28 April 1999 | 39 / 40 |
| May | 21.5°C | 8.8°C | 36.5°C4 May 1990 | 0.5°C30 May 2018 | 40 / 40 |
| June | 18.8°C | 6.4°C | 32.0°C22 June 1997 | −2.9°C15 June 2007 | 38 / 40 |
| July | 18.4°C | 5.3°C | 31.2°C28 July 2017 | −3.2°C3 July 2024 | 39 / 40 |
| August | 19.9°C | 6.1°C | 36.0°C29 August 2024 | −4.0°C17 August 1996 | 39 / 40 |
| September | 22.7°C | 8.0°C | 40.0°C30 September 2023 | −0.7°C4 September 1990 | 38 / 40 |
| October | 24.8°C | 10.5°C | 45.0°C31 October 1987 | 1.0°C3 October 1991 | 38 / 39 |
| November | 25.9°C | 12.6°C | 46.6°C20 November 2019 | 2.0°C10 November 1996 | 40 / 40 |
| December | 27.1°C | 14.5°C | 49.9°C19 December 2019 | 2.3°C14 December 1995 | 39 / 40 |
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.
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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.