Cumshewa Isl climate by month
Averages and records for each calendar month at Cumshewa Isl, Canada, from 1992 to 2026. The warmest month is August, averaging 16.9°C; the coolest is February at 6.8°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 7.1°C | 3.8°C | 14.1°C24 January 2015 | −8.2°C28 January 1996 | 30 / 32 |
| February | 6.8°C | 3.2°C | 12.8°C13 February 2015 | −7.9°C3 February 2019 | 28 / 32 |
| March | 7.2°C | 3.4°C | 14.0°C30 March 2016 | −7.5°C8 March 2003 | 30 / 31 |
| April | 8.8°C | 5.2°C | 16.2°C23 April 2005 | −0.3°C1 April 2005 | 30 / 31 |
| May | 11.3°C | 7.8°C | 20.8°C18 May 2023 | 2.5°C3 May 1999 | 27 / 29 |
| June | 13.4°C | 10.1°C | 24.8°C19 June 2004 | 4.9°C8 June 2005 | 23 / 28 |
| July | 15.9°C | 12.5°C | 24.4°C8 July 2015 | 8.7°C6 July 2001 | 28 / 29 |
| August | 16.9°C | 13.4°C | 25.0°C11 August 2025 | 9.2°C24 August 2009 | 28 / 30 |
| September | 15.1°C | 11.5°C | 20.9°C5 September 2026 | 6.8°C24 September 2011 | 28 / 31 |
| October | 12.0°C | 8.4°C | 19.6°C9 October 2022 | 1.1°C30 October 2012 | 28 / 30 |
| November | 9.1°C | 5.4°C | 16.2°C1 November 1993 | −6.4°C21 November 1996 | 31 / 31 |
| December | 7.3°C | 3.7°C | 14.2°C2 December 1993 | −9.7°C28 December 1996 | 31 / 31 |
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 23 to 31 years each.
See what Cumshewa Isl is doing right now
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.