GREAT FALLS CLIMATE, MAN climate by month
Averages and records for each calendar month at GREAT FALLS CLIMATE, MAN, Canada, from 2005 to 2026. The warmest month is July, averaging 25.4°C; the coolest is January at −10.1°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | −10.1°C | −20.2°C | 9.0°C31 January 2024 | −40.2°C30 January 2019 | 20 / 22 |
| February | −8.9°C | −21.1°C | 9.9°C17 February 2017 | −40.1°C5 February 2007 | 21 / 22 |
| March | 0.2°C | −11.8°C | 22.7°C19 March 2012 | −34.6°C1 March 2014 | 20 / 22 |
| April | 9.0°C | −2.4°C | 25.1°C30 April 2015 | −21.6°C3 April 2018 | 22 / 22 |
| May | 17.2°C | 5.4°C | 34.7°C13 May 2025 | −5.7°C1 May 2011 | 20 / 22 |
| June | 22.7°C | 11.8°C | 35.5°C20 June 2023 | 0.4°C6 June 2009 | 20 / 22 |
| July | 25.4°C | 14.4°C | 36.2°C24 July 2007 | 6.4°C7 July 2015 | 21 / 22 |
| August | 24.1°C | 13.5°C | 36.3°C23 August 2011 | 5.0°C17 August 2010 | 21 / 22 |
| September | 19.1°C | 9.1°C | 35.1°C2 September 2023 | −2.1°C23 September 2012 | 19 / 22 |
| October | 10.2°C | 2.4°C | 28.9°C6 October 2021 | −8.8°C31 October 2023 | 19 / 21 |
| November | 0.6°C | −6.4°C | 20.5°C6 November 2016 | −26.7°C26 November 2014 | 20 / 21 |
| December | −8.1°C | −16.2°C | 7.3°C4 December 2015 | −38.6°C30 December 2013 | 20 / 21 |
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 19 to 22 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.