La Grande Riviere Arpt climate by month
Averages and records for each calendar month at La Grande Riviere Arpt, Canada, from 1977 to 2025. The warmest month is July, averaging 21.0°C; the coolest is January at −15.8°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | −15.8°C | −26.0°C | 3.3°C2 January 2011 | −40.9°C19 January 1982 | 13 / 47 |
| February | −15.8°C | −27.6°C | 5.0°C24 February 1981 | −45.0°C15 February 1979 | 12 / 47 |
| March | −8.2°C | −22.1°C | 11.2°C14 March 1995 | −38.5°C12 March 1984 | 14 / 46 |
| April | 0.8°C | −11.4°C | 21.0°C30 April 1980 | −31.4°C1 April 1994 | 16 / 46 |
| May | 10.4°C | −2.3°C | 32.6°C17 May 1998 | −22.6°C1 May 2019 | 15 / 46 |
| June | 18.5°C | 4.2°C | 34.3°C24 June 1989 | −6.0°C7 June 1978 | 17 / 46 |
| July | 21.0°C | 7.3°C | 34.4°C4 July 2023 | −2.4°C5 July 1984 | 16 / 47 |
| August | 19.4°C | 7.7°C | 31.6°C21 August 2021 | −0.5°C17 August 1984 | 15 / 47 |
| September | 13.8°C | 3.8°C | 28.3°C5 September 2015 | −7.0°C29 September 1978 | 16 / 46 |
| October | 6.1°C | −1.2°C | 25.4°C4 October 2023 | −13.0°C24 October 1981 | 17 / 46 |
| November | −2.7°C | −8.9°C | 12.0°C2 November 1977 | −29.3°C25 November 1989 | 18 / 46 |
| December | −11.0°C | −19.5°C | 7.4°C4 December 1982 | −40.3°C28 December 1993 | 18 / 47 |
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 12 to 18 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.