Viljujsk climate by month
Averages and records for each calendar month at Viljujsk, Russia, from 1898 to 2025. The warmest month is July, averaging 24.7°C; the coolest is January at −33.3°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | −33.3°C | −40.8°C | −0.4°C1 January 1979 | −60.9°C13 January 1927 | 88 / 125 |
| February | −26.5°C | −36.3°C | −2.0°C27 February 1998 | −58.0°C2 February 1931 | 92 / 128 |
| March | −12.1°C | −26.7°C | 10.1°C27 March 2011 | −50.0°C7 March 1912 | 94 / 127 |
| April | 0.0°C | −13.7°C | 18.6°C30 April 1943 | −40.2°C6 April 1951 | 97 / 127 |
| May | 11.0°C | −1.0°C | 30.4°C26 May 2020 | −23.0°C1 May 1909 | 96 / 126 |
| June | 21.5°C | 8.6°C | 36.1°C18 June 1956 | −5.3°C1 June 1964 | 96 / 126 |
| July | 24.7°C | 12.0°C | 37.4°C15 July 1980 | 0.0°C6 July 1900 | 94 / 126 |
| August | 20.5°C | 8.4°C | 36.0°C5 August 1969 | −6.3°C31 August 1898 | 94 / 126 |
| September | 10.8°C | 1.0°C | 27.7°C5 September 1955 | −15.4°C25 September 1957 | 95 / 124 |
| October | −3.5°C | −11.2°C | 18.0°C3 October 1943 | −39.8°C31 October 1971 | 94 / 124 |
| November | −22.4°C | −30.0°C | 3.7°C1 November 2013 | −52.7°C30 November 1968 | 88 / 123 |
| December | −31.4°C | −39.0°C | −2.1°C11 December 2003 | −57.9°C31 December 1911 | 86 / 125 |
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 86 to 97 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.