SYDNEY CS, NS climate by month
Averages and records for each calendar month at SYDNEY CS, NS, Canada, from 2006 to 2026. The warmest month is July, averaging 24.0°C; the coolest is February at −0.5°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 0.3°C | −7.4°C | 14.6°C15 January 2006 | −22.9°C27 January 2009 | 20 / 21 |
| February | −0.5°C | −8.6°C | 12.0°C29 February 2016 | −22.2°C11 February 2014 | 20 / 21 |
| March | 2.5°C | −5.8°C | 24.0°C22 March 2012 | −21.6°C4 March 2014 | 21 / 21 |
| April | 7.4°C | −1.4°C | 25.3°C28 April 2009 | −12.9°C10 April 2015 | 21 / 21 |
| May | 13.5°C | 2.9°C | 30.9°C28 May 2020 | −5.4°C8 May 2022 | 20 / 21 |
| June | 18.6°C | 8.2°C | 33.7°C19 June 2020 | −0.8°C2 June 2026 | 19 / 21 |
| July | 24.0°C | 13.3°C | 33.2°C24 July 2022 | 2.8°C8 July 2009 | 20 / 21 |
| August | 23.8°C | 13.5°C | 33.4°C7 August 2022 | 4.1°C28 August 2006 | 18 / 20 |
| September | 19.9°C | 9.7°C | 31.2°C2 September 2010 | 0.3°C25 September 2008 | 18 / 20 |
| October | 14.0°C | 4.8°C | 27.3°C7 October 2025 | −3.9°C27 October 2018 | 18 / 20 |
| November | 8.4°C | 0.6°C | 23.0°C7 November 2024 | −10.4°C22 November 2018 | 18 / 20 |
| December | 3.0°C | −3.8°C | 15.0°C12 December 2008 | −17.0°C31 December 2017 | 18 / 20 |
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 18 to 21 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.