SLAVE LAKE RCS, AB climate by month
Averages and records for each calendar month at SLAVE LAKE RCS, AB, Canada, from 2012 to 2026. The warmest month is July, averaging 22.3°C; the coolest is December at −8.0°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | −6.1°C | −15.6°C | 12.3°C30 January 2024 | −40.4°C15 January 2020 | 14 / 14 |
| February | −6.1°C | −16.9°C | 14.0°C14 February 2017 | −40.2°C7 February 2021 | 14 / 14 |
| March | 0.6°C | −11.0°C | 18.3°C17 March 2024 | −35.2°C1 March 2014 | 13 / 14 |
| April | 7.9°C | −3.0°C | 27.7°C18 April 2016 | −30.2°C3 April 2020 | 14 / 14 |
| May | 17.0°C | 3.8°C | 31.6°C29 May 2025 | −9.0°C1 May 2013 | 13 / 13 |
| June | 20.1°C | 9.2°C | 38.3°C30 June 2021 | 1.5°C5 June 2014 | 13 / 13 |
| July | 22.3°C | 11.5°C | 35.7°C1 July 2021 | 3.1°C28 July 2025 | 13 / 13 |
| August | 21.5°C | 10.4°C | 31.1°C1 August 2025 | 1.2°C31 August 2020 | 13 / 13 |
| September | 16.6°C | 5.1°C | 30.1°C7 September 2017 | −7.2°C30 September 2019 | 12 / 13 |
| October | 8.8°C | −0.7°C | 24.4°C1 October 2015 | −19.1°C31 October 2012 | 12 / 13 |
| November | −1.0°C | −9.2°C | 12.4°C1 November 2020 | −29.6°C29 November 2014 | 13 / 13 |
| December | −8.0°C | −17.0°C | 11.8°C7 December 2020 | −38.2°C22 December 2022 | 13 / 13 |
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 12 to 14 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.