Irtyshsk climate by month
Averages and records for each calendar month at Irtyshsk, Kazakhstan, from 1936 to 2026. The warmest month is July, averaging 26.8°C; the coolest is January at −13.4°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | −13.4°C | −22.2°C | 2.8°C14 January 1943 | −45.6°C24 January 2006 | 71 / 91 |
| February | −11.7°C | −21.5°C | 5.1°C26 February 2016 | −43.7°C24 February 1951 | 72 / 91 |
| March | −3.9°C | −14.5°C | 20.3°C31 March 2014 | −38.7°C2 March 1945 | 85 / 91 |
| April | 10.6°C | −1.3°C | 32.8°C27 April 1972 | −24.8°C1 April 1969 | 88 / 91 |
| May | 20.0°C | 6.6°C | 37.8°C26 May 2021 | −9.9°C12 May 1936 | 88 / 91 |
| June | 25.6°C | 12.6°C | 40.7°C23 June 1970 | −1.3°C4 June 2022 | 88 / 91 |
| July | 26.8°C | 14.9°C | 41.8°C21 July 1940 | 4.8°C8 July 1947 | 88 / 91 |
| August | 24.1°C | 11.9°C | 39.1°C12 August 2012 | −1.9°C27 August 1947 | 89 / 91 |
| September | 18.2°C | 6.1°C | 37.3°C3 September 2022 | −7.0°C25 September 1938 | 87 / 91 |
| October | 8.5°C | −1.1°C | 28.9°C3 October 2004 | −20.0°C26 October 1953 | 84 / 90 |
| November | −3.4°C | −11.5°C | 16.6°C2 November 1955 | −40.7°C24 November 1987 | 77 / 90 |
| December | −9.7°C | −19.0°C | 3.8°C3 December 1983 | −44.6°C18 December 1938 | 65 / 90 |
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 65 to 89 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.