WELLAND-PELHAM, ONT climate by month
Averages and records for each calendar month at WELLAND-PELHAM, ONT, Canada, from 2005 to 2026. The warmest month is July, averaging 26.9°C; the coolest is January at 0.0°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 0.0°C | −7.6°C | 16.2°C8 January 2008 | −28.9°C24 January 2011 | 21 / 21 |
| February | 0.3°C | −8.4°C | 17.9°C20 February 2018 | −31.9°C16 February 2015 | 21 / 21 |
| March | 6.1°C | −3.5°C | 26.0°C21 March 2012 | −24.6°C4 March 2014 | 21 / 21 |
| April | 12.8°C | 1.8°C | 28.2°C27 April 2017 | −11.1°C5 April 2016 | 21 / 21 |
| May | 19.7°C | 7.8°C | 32.3°C28 May 2016 | −2.7°C12 May 2020 | 20 / 20 |
| June | 24.4°C | 13.5°C | 32.6°C26 June 2007 | 2.5°C2 June 2025 | 20 / 20 |
| July | 26.9°C | 16.1°C | 34.4°C9 July 2020 | 8.2°C2 July 2010 | 20 / 20 |
| August | 25.8°C | 15.0°C | 33.8°C4 August 2012 | 6.6°C30 August 2025 | 19 / 20 |
| September | 22.5°C | 11.3°C | 32.9°C6 September 2007 | 1.0°C17 September 2013 | 18 / 20 |
| October | 15.6°C | 6.0°C | 29.6°C5 October 2007 | −5.2°C31 October 2020 | 19 / 19 |
| November | 8.7°C | 0.0°C | 25.1°C5 November 2022 | −16.5°C13 November 2019 | 18 / 20 |
| December | 3.1°C | −3.8°C | 20.1°C14 December 2015 | −24.7°C31 December 2017 | 20 / 20 |
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 21 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.