Kemptville climate by month
Averages and records for each calendar month at Kemptville, Canada, from 1997 to 2026. The warmest month is July, averaging 27.1°C; the coolest is January at −4.0°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | −4.0°C | −13.6°C | 15.2°C13 January 2005 | −35.1°C22 January 2022 | 28 / 29 |
| February | −1.9°C | −12.5°C | 18.0°C27 February 2024 | −33.2°C4 February 2023 | 29 / 29 |
| March | 4.0°C | −6.4°C | 26.3°C21 March 2012 | −28.3°C3 March 2003 | 25 / 28 |
| April | 12.1°C | 0.6°C | 30.3°C27 April 2009 | −11.8°C5 April 2004 | 26 / 28 |
| May | 19.6°C | 7.1°C | 34.8°C26 May 2010 | −3.0°C13 May 2005 | 25 / 28 |
| June | 24.3°C | 12.4°C | 33.8°C7 June 1999 | 1.8°C1 June 2020 | 25 / 28 |
| July | 27.1°C | 15.1°C | 36.4°C10 July 2020 | 5.8°C27 July 2001 | 25 / 27 |
| August | 25.8°C | 14.0°C | 36.7°C8 August 2001 | 4.4°C25 August 2001 | 25 / 27 |
| September | 21.8°C | 9.7°C | 35.0°C9 September 2002 | −2.2°C19 September 2014 | 25 / 27 |
| October | 14.1°C | 4.0°C | 30.1°C3 October 2023 | −9.0°C31 October 2020 | 25 / 25 |
| November | 6.6°C | −2.2°C | 24.1°C5 November 2022 | −21.9°C23 November 2018 | 26 / 27 |
| December | −0.5°C | −8.5°C | 17.8°C5 December 2001 | −31.9°C17 December 2013 | 27 / 27 |
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 25 to 29 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.