SHANNON climate by month
Averages and records for each calendar month at SHANNON, Australia, from 1996 to 2026. The warmest month is February, averaging 26.8°C; the coolest is July at 14.9°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 26.5°C | 12.8°C | 41.0°C2 January 1997 | 4.0°C11 January 1999 | 25 / 28 |
| February | 26.8°C | 13.6°C | 41.4°C20 February 2024 | 6.0°C15 February 1997 | 25 / 28 |
| March | 24.7°C | 12.8°C | 41.0°C7 March 2007 | 3.0°C24 March 2007 | 27 / 28 |
| April | 21.3°C | 10.9°C | 33.1°C5 April 2011 | 2.0°C8 April 2001 | 26 / 28 |
| May | 18.3°C | 9.0°C | 29.0°C1 May 2002 | 0.0°C26 May 2006 | 27 / 28 |
| June | 15.8°C | 7.7°C | 22.3°C7 June 2020 | −2.0°C17 June 2006 | 27 / 29 |
| July | 14.9°C | 6.8°C | 21.0°C17 July 2002 | −1.0°C12 July 2005 | 28 / 28 |
| August | 15.5°C | 7.0°C | 24.8°C16 August 2015 | 0.0°C29 August 2004 | 27 / 30 |
| September | 16.7°C | 7.4°C | 28.0°C29 September 2006 | 0.3°C6 September 2019 | 27 / 30 |
| October | 18.8°C | 8.5°C | 31.5°C7 October 2023 | 1.0°C3 October 2002 | 27 / 27 |
| November | 22.0°C | 10.1°C | 38.0°C12 November 2003 | 1.0°C7 November 1999 | 26 / 28 |
| December | 24.7°C | 11.5°C | 41.0°C23 December 1997 | 3.0°C11 December 2003 | 27 / 28 |
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 25 to 28 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.