Lyon/Bron Arpt climate by month
Averages and records for each calendar month at Lyon/Bron Arpt, France, from 1920 to 2026. The warmest month is July, averaging 26.9°C; the coolest is January at 6.1°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 6.1°C | −0.2°C | 20.4°C10 January 2015 | −23.0°C23 January 1963 | 106 / 106 |
| February | 8.2°C | 0.7°C | 22.4°C24 February 1990 | −22.5°C14 February 1929 | 106 / 106 |
| March | 12.7°C | 3.3°C | 26.1°C22 March 1990 | −10.5°C7 March 1971 | 106 / 106 |
| April | 16.1°C | 6.0°C | 30.1°C16 April 1949 | −4.4°C10 April 1949 | 106 / 106 |
| May | 20.3°C | 9.8°C | 34.2°C16 May 1945 | −3.8°C1 May 1938 | 106 / 106 |
| June | 24.3°C | 13.4°C | 38.1°C22 June 2003 | 2.3°C1 June 1959 | 106 / 106 |
| July | 26.9°C | 15.4°C | 39.5°C29 July 1947 | 6.1°C7 July 1962 | 106 / 106 |
| August | 26.4°C | 15.0°C | 39.9°C13 August 2003 | 4.6°C25 August 1940 | 106 / 106 |
| September | 22.5°C | 12.0°C | 35.8°C5 September 1949 | 0.2°C24 September 1928 | 106 / 106 |
| October | 17.0°C | 8.3°C | 30.3°C9 October 2023 | −4.5°C31 October 1950 | 106 / 106 |
| November | 10.5°C | 3.8°C | 23.0°C2 November 1924 | −9.4°C30 November 1925 | 106 / 106 |
| December | 6.6°C | 0.7°C | 20.1°C18 December 1989 | −24.6°C22 December 1938 | 106 / 106 |
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 106 to 106 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.