BARRHEAD CS, ALTA climate by month
Averages and records for each calendar month at BARRHEAD CS, ALTA, Canada, from 2000 to 2026. The warmest month is July, averaging 24.1°C; the coolest is December at −6.2°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | −5.0°C | −16.7°C | 13.8°C7 January 2003 | −47.2°C27 January 2004 | 24 / 26 |
| February | −3.3°C | −16.6°C | 15.5°C15 February 2017 | −44.6°C5 February 2019 | 25 / 26 |
| March | 2.0°C | −11.3°C | 18.4°C23 March 2022 | −42.7°C8 March 2003 | 26 / 26 |
| April | 10.5°C | −2.9°C | 27.6°C28 April 2018 | −26.7°C2 April 2020 | 26 / 26 |
| May | 18.2°C | 3.6°C | 32.2°C4 May 2023 | −8.4°C2 May 2005 | 24 / 25 |
| June | 21.6°C | 8.3°C | 37.7°C30 June 2021 | −1.5°C8 June 2009 | 23 / 25 |
| July | 24.1°C | 10.5°C | 36.5°C1 July 2021 | 1.9°C3 July 2002 | 24 / 25 |
| August | 23.0°C | 8.7°C | 34.3°C18 August 2008 | −0.9°C31 August 2008 | 25 / 25 |
| September | 18.3°C | 3.7°C | 33.3°C23 September 2009 | −8.4°C27 September 2002 | 24 / 25 |
| October | 10.2°C | −2.3°C | 28.9°C1 October 2008 | −20.1°C29 October 2002 | 23 / 24 |
| November | 0.9°C | −9.8°C | 18.8°C22 November 2005 | −37.4°C29 November 2006 | 23 / 24 |
| December | −6.2°C | −17.9°C | 12.3°C10 December 2005 | −44.5°C22 December 2022 | 23 / 24 |
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 23 to 26 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.