Lyon Weather in December
In December, Lyon averages a high of 7°C (45°F) and a low of 2°C (35°F), from 55 years of daily records (1971–2026).
7°C
Average high
45°F
2°C
Average low
35°F
20°C
Record high
68°F · December 18, 1989
-13°C
Record low
9°F · December 10, 1980
What December Is Like in Lyon
- 7 of the 10 warmest Decembers on record in Lyon have come since 2011.
- December in Lyon has become 1.8°C (3.3°F) warmer on average: the 2011–2025 average against 1970–1989.
- The December heat record, 20°C (68°F) on December 18, 1989, has stood for 37 years.
- The coldest December reading, -13°C (9°F) on December 10, 1980, has not been matched in 46 years.
At least 1 mm of rain falls on 33% of December days, and the month averages 66 mm in total.
Warmest: 2015 (13.2°C)Latest: 2025 (8.9°C)10-year averageLong-run average (7.0°C)
Look Up a Day in December
See the weather in Lyon on any December date, year by year.
Source: NOAA GHCN-Daily, Lyon - St Exupery (1971–2026). Averages cover 1971–2026. How we compute this