Armstrong Arpt climate by month
Averages and records for each calendar month at Armstrong Arpt, Canada, from 1938 to 2026. The warmest month is July, averaging 24.0°C; the coolest is January at −12.9°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | −12.9°C | −26.6°C | 6.5°C31 January 1999 | −50.0°C29 January 1957 | 71 / 76 |
| February | −9.8°C | −26.0°C | 10.0°C9 February 1976 | −47.8°C5 February 1951 | 63 / 77 |
| March | −1.8°C | −18.5°C | 18.9°C19 March 2012 | −45.6°C2 March 1943 | 68 / 77 |
| April | 6.2°C | −7.8°C | 27.8°C24 April 1942 | −35.0°C7 April 1972 | 68 / 77 |
| May | 14.7°C | −0.3°C | 34.5°C22 May 1980 | −16.1°C1 May 1974 | 70 / 76 |
| June | 20.8°C | 5.8°C | 35.6°C26 June 1941 | −6.7°C8 June 1971 | 69 / 76 |
| July | 24.0°C | 9.2°C | 40.0°C13 July 2026 | −5.6°C3 July 1972 | 72 / 76 |
| August | 22.0°C | 7.8°C | 36.7°C7 August 1949 | −3.9°C23 August 1940 | 71 / 77 |
| September | 15.8°C | 3.4°C | 32.9°C11 September 2005 | −11.7°C28 September 1967 | 67 / 78 |
| October | 8.5°C | −1.7°C | 32.1°C3 October 1995 | −21.7°C18 October 1974 | 68 / 77 |
| November | −1.4°C | −10.7°C | 20.6°C6 November 1975 | −36.7°C28 November 1958 | 70 / 76 |
| December | −9.5°C | −21.4°C | 10.0°C2 December 1962 | −49.4°C30 December 1953 | 66 / 76 |
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 63 to 72 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.