Thompson Arpt climate by month
Averages and records for each calendar month at Thompson Arpt, Canada, from 1967 to 2025. The warmest month is July, averaging 22.9°C; the coolest is January at −18.9°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | −18.9°C | −29.8°C | 8.1°C30 January 1993 | −48.9°C8 January 1968 | 46 / 58 |
| February | −13.8°C | −27.3°C | 5.6°C24 February 1975 | −47.8°C1 February 1974 | 46 / 58 |
| March | −5.6°C | −20.9°C | 15.9°C21 March 1987 | −48.3°C1 March 1972 | 46 / 58 |
| April | 4.8°C | −9.4°C | 29.4°C30 April 1980 | −34.4°C1 April 1967 | 48 / 59 |
| May | 13.0°C | −0.9°C | 32.6°C27 May 1986 | −18.3°C19 May 1969 | 47 / 59 |
| June | 19.8°C | 5.4°C | 37.4°C18 June 1995 | −5.6°C6 June 2000 | 47 / 59 |
| July | 22.9°C | 8.9°C | 35.9°C22 July 1989 | −1.1°C5 July 1968 | 47 / 59 |
| August | 21.0°C | 7.3°C | 34.6°C11 August 1991 | −3.5°C24 August 1977 | 47 / 59 |
| September | 13.5°C | 1.9°C | 32.2°C6 September 1967 | −11.1°C28 September 1974 | 48 / 58 |
| October | 4.4°C | −4.0°C | 24.6°C9 October 1984 | −27.1°C30 October 1997 | 47 / 58 |
| November | −6.9°C | −16.3°C | 13.4°C2 November 1978 | −41.2°C30 November 2007 | 46 / 58 |
| December | −16.4°C | −26.6°C | 5.0°C1 December 1988 | −47.6°C20 December 1990 | 45 / 58 |
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 45 to 48 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.