Semipalatinsk climate by month
Averages and records for each calendar month at Semipalatinsk, Kazakhstan, from 1901 to 2025. The warmest month is July, averaging 28.8°C; the coolest is January at −10.7°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | −10.7°C | −20.6°C | 6.3°C10 January 2024 | −51.4°C13 January 1915 | 99 / 119 |
| February | −9.4°C | −20.3°C | 10.2°C18 February 2019 | −45.3°C4 February 1931 | 98 / 119 |
| March | −1.3°C | −13.3°C | 24.5°C31 March 2014 | −39.1°C4 March 1971 | 104 / 120 |
| April | 12.9°C | −0.9°C | 33.0°C28 April 1997 | −26.1°C2 April 1969 | 107 / 120 |
| May | 21.8°C | 6.7°C | 39.6°C17 May 2025 | −9.9°C3 May 1931 | 108 / 118 |
| June | 27.2°C | 12.4°C | 39.5°C20 June 1931 | −1.0°C5 June 1971 | 108 / 119 |
| July | 28.8°C | 14.8°C | 42.1°C15 July 1992 | 4.3°C4 July 1972 | 107 / 118 |
| August | 26.8°C | 11.9°C | 42.5°C11 August 2002 | −0.7°C25 August 1978 | 105 / 120 |
| September | 20.6°C | 5.6°C | 38.2°C4 September 1998 | −8.2°C30 September 1913 | 104 / 118 |
| October | 11.3°C | −0.6°C | 29.5°C2 October 1970 | −20.8°C28 October 1987 | 102 / 119 |
| November | −0.5°C | −9.9°C | 21.0°C3 November 2017 | −48.6°C27 November 1910 | 102 / 119 |
| December | −8.5°C | −17.5°C | 7.6°C1 December 1955 | −45.8°C17 December 1938 | 95 / 119 |
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 95 to 108 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.