Edmundston climate by month
Averages and records for each calendar month at Edmundston, Canada, from 2004 to 2026. The warmest month is July, averaging 25.4°C; the coolest is January at −6.0°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | −6.0°C | −19.1°C | 11.5°C31 January 2013 | −43.6°C16 January 2009 | 20 / 22 |
| February | −4.3°C | −19.6°C | 10.5°C21 February 2018 | −38.8°C15 February 2020 | 21 / 22 |
| March | 1.6°C | −12.6°C | 25.0°C21 March 2012 | −36.2°C24 March 2008 | 21 / 22 |
| April | 9.0°C | −3.8°C | 26.8°C25 April 2009 | −28.5°C6 April 2015 | 22 / 22 |
| May | 17.3°C | 2.4°C | 33.7°C28 May 2020 | −7.7°C8 May 2022 | 21 / 22 |
| June | 22.1°C | 7.6°C | 35.3°C20 June 2024 | −3.6°C2 June 2020 | 20 / 22 |
| July | 25.4°C | 10.7°C | 34.6°C7 July 2010 | 1.3°C23 July 2017 | 20 / 22 |
| August | 24.3°C | 9.5°C | 34.8°C13 August 2025 | −1.2°C25 August 2006 | 21 / 22 |
| September | 19.6°C | 4.8°C | 33.6°C1 September 2010 | −6.6°C24 September 2018 | 19 / 22 |
| October | 12.6°C | 0.3°C | 28.4°C6 October 2025 | −12.4°C31 October 2020 | 19 / 21 |
| November | 4.2°C | −5.3°C | 23.3°C10 November 2020 | −23.0°C14 November 2019 | 19 / 21 |
| December | −2.7°C | −13.1°C | 14.4°C1 December 2020 | −38.2°C21 December 2008 | 18 / 22 |
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 18 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.