Atikokan, Ont. climate by month
Averages and records for each calendar month at Atikokan, Ont., Canada, from 2000 to 2026. The warmest month is July, averaging 25.2°C; the coolest is January at −9.0°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | −9.0°C | −20.7°C | 8.8°C31 January 2024 | −42.1°C17 January 2005 | 24 / 26 |
| February | −6.6°C | −21.2°C | 15.1°C16 February 2011 | −40.0°C14 February 2021 | 26 / 26 |
| March | 1.7°C | −12.7°C | 24.7°C18 March 2012 | −40.4°C1 March 2014 | 26 / 26 |
| April | 9.0°C | −4.2°C | 28.3°C29 April 2001 | −25.8°C2 April 2014 | 26 / 26 |
| May | 17.2°C | 3.1°C | 32.4°C29 May 2006 | −7.8°C12 May 2020 | 25 / 26 |
| June | 22.6°C | 9.3°C | 34.4°C20 June 2022 | −1.6°C2 June 2019 | 24 / 26 |
| July | 25.2°C | 12.2°C | 38.0°C13 July 2026 | 2.0°C5 July 2001 | 24 / 26 |
| August | 23.7°C | 10.8°C | 34.2°C18 August 2003 | 0.4°C21 August 2004 | 24 / 26 |
| September | 19.1°C | 6.8°C | 33.0°C5 September 2023 | −4.3°C18 September 2020 | 22 / 26 |
| October | 9.9°C | 0.4°C | 29.5°C4 October 2025 | −15.1°C30 October 2020 | 22 / 25 |
| November | 1.6°C | −7.0°C | 21.4°C2 November 2022 | −28.1°C27 November 2014 | 21 / 25 |
| December | −6.3°C | −16.3°C | 9.0°C14 December 2023 | −41.7°C31 December 2013 | 22 / 26 |
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 21 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.