Shawinigan CS , Que. climate by month
Averages and records for each calendar month at Shawinigan CS , Que., Canada, from 1998 to 2026. The warmest month is July, averaging 25.6°C; the coolest is January at −6.6°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | −6.6°C | −15.6°C | 8.7°C12 January 2018 | −34.0°C16 January 2009 | 26 / 28 |
| February | −4.4°C | −15.1°C | 10.3°C27 February 2000 | −31.9°C4 February 2023 | 27 / 28 |
| March | 1.5°C | −8.3°C | 22.9°C21 March 2012 | −28.3°C4 March 2003 | 28 / 28 |
| April | 9.5°C | −0.6°C | 28.9°C25 April 2009 | −16.7°C4 April 2016 | 28 / 28 |
| May | 18.0°C | 6.2°C | 34.3°C25 May 2010 | −2.2°C8 May 2004 | 26 / 27 |
| June | 22.9°C | 11.5°C | 35.0°C26 June 2003 | 1.1°C1 June 2020 | 26 / 27 |
| July | 25.6°C | 14.5°C | 35.8°C2 July 2002 | 5.9°C25 July 2013 | 25 / 26 |
| August | 24.4°C | 13.5°C | 33.8°C14 August 2002 | 5.5°C25 August 2006 | 25 / 26 |
| September | 19.9°C | 9.0°C | 33.9°C9 September 2002 | −2.7°C29 September 2000 | 22 / 25 |
| October | 12.1°C | 3.2°C | 27.5°C5 October 2025 | −8.9°C6 October 2004 | 22 / 24 |
| November | 4.0°C | −3.2°C | 21.5°C5 November 2022 | −18.6°C30 November 2013 | 23 / 25 |
| December | −3.1°C | −11.1°C | 13.7°C6 December 2001 | −28.4°C14 December 2013 | 24 / 26 |
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 22 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.