ROWLEY ISLAND, NU climate by month
Averages and records for each calendar month at ROWLEY ISLAND, NU, Canada, from 1957 to 2023. The warmest month is July, averaging 10.0°C; the coolest is February at −24.9°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | −24.7°C | −30.9°C | 0.0°C21 January 1958 | −42.8°C31 January 1958 | 40 / 42 |
| February | −24.9°C | −31.5°C | 0.6°C4 February 1963 | −45.0°C14 February 1966 | 37 / 42 |
| March | −21.9°C | −29.1°C | 0.0°C6 March 1996 | −43.3°C8 March 1964 | 37 / 40 |
| April | −14.1°C | −21.8°C | 1.3°C11 April 2019 | −37.8°C9 April 1964 | 34 / 40 |
| May | −4.6°C | −10.5°C | 10.0°C16 May 2019 | −25.6°C10 May 1959 | 38 / 40 |
| June | 2.6°C | −1.6°C | 17.7°C30 June 2019 | −15.0°C1 June 1959 | 38 / 40 |
| July | 10.0°C | 3.1°C | 21.3°C28 July 2001 | −3.9°C2 July 1968 | 37 / 40 |
| August | 8.2°C | 2.2°C | 20.0°C12 August 1966 | −4.2°C31 August 1996 | 34 / 39 |
| September | 1.6°C | −1.9°C | 11.7°C6 September 2010 | −11.7°C30 September 1965 | 35 / 40 |
| October | −4.6°C | −9.0°C | 3.4°C1 October 1998 | −26.7°C22 October 1959 | 37 / 39 |
| November | −13.5°C | −20.0°C | 0.6°C13 November 1995 | −39.4°C26 November 1963 | 38 / 39 |
| December | −19.5°C | −26.3°C | −1.3°C20 December 2003 | −44.4°C20 December 1957 | 38 / 42 |
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 40 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.