Cardston climate by month
Averages and records for each calendar month at Cardston, Canada, from 1994 to 2026. The warmest month is July, averaging 26.0°C; the coolest is December at 1.4°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 1.7°C | −10.1°C | 19.0°C26 January 2015 | −39.7°C12 January 2024 | 32 / 32 |
| February | 1.8°C | −10.2°C | 19.2°C5 February 2026 | −37.9°C9 February 2021 | 32 / 32 |
| March | 5.8°C | −6.3°C | 23.8°C30 March 2004 | −37.1°C3 March 2019 | 31 / 32 |
| April | 10.9°C | −1.4°C | 27.1°C28 April 2018 | −21.5°C3 April 2002 | 32 / 32 |
| May | 16.6°C | 3.7°C | 31.7°C31 May 2025 | −9.2°C1 May 2013 | 31 / 31 |
| June | 20.6°C | 7.7°C | 35.0°C29 June 2021 | −1.3°C9 June 2009 | 28 / 31 |
| July | 26.0°C | 10.3°C | 39.0°C23 July 2007 | 1.4°C6 July 2003 | 30 / 32 |
| August | 25.7°C | 9.4°C | 39.0°C10 August 2018 | 0.6°C10 August 1997 | 31 / 32 |
| September | 20.2°C | 5.4°C | 35.8°C3 September 2022 | −7.5°C23 September 2000 | 30 / 32 |
| October | 12.3°C | −0.4°C | 28.4°C1 October 2008 | −25.8°C30 October 2002 | 30 / 31 |
| November | 5.9°C | −5.5°C | 22.3°C8 November 2004 | −34.4°C21 November 1996 | 29 / 31 |
| December | 1.4°C | −10.4°C | 16.9°C27 December 1999 | −37.1°C22 December 2022 | 31 / 31 |
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 28 to 32 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.