Stefansson Island climate by month
Averages and records for each calendar month at Stefansson Island, Canada, from 2002 to 2026. The warmest month is July, averaging 6.3°C; the coolest is February at −28.2°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | −26.5°C | −33.3°C | −7.7°C4 January 2017 | −44.6°C12 January 2019 | 12 / 16 |
| February | −28.2°C | −35.2°C | −9.2°C9 February 2012 | −49.4°C26 February 2021 | 10 / 18 |
| March | −26.4°C | −34.1°C | −8.3°C30 March 2011 | −49.1°C15 March 2003 | 12 / 18 |
| April | −18.0°C | −27.0°C | −1.6°C27 April 2021 | −38.9°C10 April 2011 | 14 / 18 |
| May | −5.8°C | −13.0°C | 6.5°C22 May 2017 | −29.2°C1 May 2011 | 14 / 21 |
| June | 2.9°C | −1.9°C | 15.9°C26 June 2016 | −14.2°C2 June 2004 | 15 / 21 |
| July | 6.3°C | 0.5°C | 23.5°C6 July 2016 | −3.0°C20 July 2008 | 12 / 23 |
| August | 4.4°C | −0.4°C | 20.2°C8 August 2024 | −5.7°C31 August 2013 | 17 / 24 |
| September | −1.4°C | −5.0°C | 8.5°C6 September 2015 | −20.3°C30 September 2008 | 15 / 24 |
| October | −8.6°C | −14.6°C | 16.4°C4 October 2024 | −30.0°C18 October 2005 | 14 / 22 |
| November | −17.6°C | −24.9°C | −3.0°C1 November 2010 | −42.5°C20 November 2005 | 14 / 19 |
| December | −25.1°C | −32.0°C | −4.7°C20 December 2010 | −42.8°C24 December 2015 | 12 / 19 |
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 17 years each.
See what Stefansson Island is doing right now
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.