Luleå Arpt climate by month
Averages and records for each calendar month at Luleå Arpt, Sweden, from 1951 to 2026. The warmest month is July, averaging 20.1°C; the coolest is January at −6.1°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | −6.1°C | −14.6°C | 10.3°C11 January 1971 | −41.0°C28 January 1999 | 74 / 76 |
| February | −5.8°C | −14.5°C | 9.8°C1 February 1993 | −38.2°C8 February 1966 | 74 / 76 |
| March | −0.6°C | −9.7°C | 13.4°C15 March 2016 | −32.3°C6 March 1981 | 74 / 76 |
| April | 4.4°C | −3.7°C | 18.4°C23 April 2019 | −20.4°C10 April 1955 | 74 / 76 |
| May | 11.3°C | 2.2°C | 28.4°C31 May 2009 | −8.8°C2 May 1967 | 74 / 76 |
| June | 17.3°C | 8.7°C | 32.2°C25 June 1953 | −1.2°C3 June 1964 | 74 / 76 |
| July | 20.1°C | 11.9°C | 32.1°C17 July 2003 | 1.5°C8 July 1951 | 74 / 76 |
| August | 18.0°C | 10.3°C | 29.3°C1 August 1980 | 0.1°C16 August 1964 | 74 / 76 |
| September | 12.5°C | 5.5°C | 22.5°C4 September 1999 | −8.4°C27 September 1966 | 73 / 75 |
| October | 5.8°C | −0.2°C | 16.9°C9 October 1995 | −20.7°C28 October 1968 | 73 / 75 |
| November | −0.4°C | −6.7°C | 13.0°C9 November 1975 | −30.3°C21 November 1971 | 73 / 75 |
| December | −4.0°C | −11.7°C | 8.5°C11 December 2013 | −33.7°C10 December 1973 | 74 / 75 |
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 73 to 74 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.