Yellowknife Arpt climate by month
Averages and records for each calendar month at Yellowknife Arpt, Canada, from 2013 to 2024. The warmest month is July, averaging 21.8°C; the coolest is January at −19.8°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | −19.8°C | −27.8°C | −0.5°C29 January 2024 | −44.1°C11 January 2024 | 11 / 12 |
| February | −19.8°C | −29.7°C | 0.8°C20 February 2020 | −45.5°C7 February 2021 | 11 / 12 |
| March | −10.5°C | −22.4°C | 9.1°C20 March 2019 | −42.1°C1 March 2014 | 11 / 12 |
| April | −0.2°C | −11.8°C | 17.7°C29 April 2016 | −35.3°C2 April 2014 | 11 / 12 |
| May | 11.8°C | 0.6°C | 26.3°C21 May 2015 | −14.6°C4 May 2014 | 10 / 11 |
| June | 19.5°C | 9.0°C | 31.1°C24 June 2013 | −0.3°C10 June 2019 | 10 / 11 |
| July | 21.8°C | 11.8°C | 30.6°C15 July 2016 | 2.4°C28 July 2019 | 11 / 11 |
| August | 19.2°C | 10.2°C | 32.6°C2 August 2021 | 1.5°C21 August 2021 | 10 / 11 |
| September | 11.8°C | 3.7°C | 24.5°C4 September 2013 | −7.8°C27 September 2018 | 10 / 11 |
| October | 2.5°C | −2.9°C | 16.4°C9 October 2023 | −15.6°C31 October 2016 | 11 / 11 |
| November | −8.9°C | −16.3°C | 4.6°C8 November 2016 | −35.5°C25 November 2014 | 11 / 11 |
| December | −18.5°C | −26.2°C | 2.2°C13 December 2023 | −44.4°C18 December 2020 | 11 / 11 |
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 10 to 11 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.