Osoyoos climate by month
Averages and records for each calendar month at Osoyoos, Canada, from 1990 to 2026. The warmest month is July, averaging 31.8°C; the coolest is December at 1.9°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 2.0°C | −3.5°C | 16.1°C13 January 2014 | −22.3°C13 January 2024 | 36 / 36 |
| February | 5.6°C | −3.0°C | 16.7°C25 February 2024 | −20.9°C2 February 1996 | 34 / 35 |
| March | 12.2°C | 0.1°C | 25.4°C31 March 1994 | −13.4°C4 March 2019 | 36 / 36 |
| April | 17.7°C | 3.6°C | 29.8°C20 April 2016 | −7.3°C1 April 2008 | 36 / 36 |
| May | 23.3°C | 8.6°C | 36.1°C28 May 2005 | −1.6°C3 May 1996 | 35 / 35 |
| June | 26.7°C | 12.2°C | 45.0°C29 June 2021 | 2.3°C7 June 2002 | 35 / 35 |
| July | 31.8°C | 15.2°C | 42.8°C27 July 1998 | 6.1°C5 July 2002 | 35 / 35 |
| August | 31.0°C | 14.2°C | 41.7°C12 August 2001 | 4.0°C28 August 2000 | 36 / 36 |
| September | 25.2°C | 9.6°C | 37.5°C3 September 1998 | −1.3°C23 September 2000 | 35 / 36 |
| October | 16.2°C | 4.2°C | 28.2°C3 October 2003 | −9.8°C31 October 2002 | 34 / 35 |
| November | 7.3°C | −0.1°C | 20.8°C10 November 1990 | −17.5°C24 November 2010 | 35 / 35 |
| December | 1.9°C | −3.5°C | 18.1°C1 December 2021 | −26.1°C29 December 1990 | 34 / 35 |
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 34 to 36 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.