Splash image

"It is a capital mistake to theorize before one has data." ( Arthur Conan Doyle , 1859 – 1930 )


Open Data Insight of the Day

Data Insights are generated from a wide range of open-data sources—on daily, monthly, and yearly schedules, or whenever predefined conditions are met (for example, pollutant limits exceeded or values rising above the historical 95th percentile). Register as a user or Login to subscribe to your preferred insights and receive notifications by mail so you never miss a noteworthy change. If you are not registered, you can still explore all published insights on this site via Explore published insights.


Previous Next

On This Day in Basel: A Historic Weather Record

Published: January 22, 2026  ·  Period: 2026-01-22

On January 22, 1942, Basel recorded its coldest day at -24.1°C, a significant event in its weather history, though not as extreme as the global or European records, such as -89.2°C in Antarctica or -69.6°C in Greenland.

On January 22, 1942, Basel experienced its coldest day on record, with temperatures plummeting to a chilling -24.1°C. This remarkable event occurred 84 years ago, marking a significant moment in the city's weather history. While this temperature is indeed extreme for Basel, it pales in comparison to some of the coldest temperatures recorded elsewhere. For instance, the global record for the lowest temperature was set at a bone-chilling -89.2°C in Vostok, Antarctica, on July 21, 1983. In Europe, the coldest temperature recorded was -69.6°C at AWS Klinck, Greenland, on December 22, 1991. Even within Switzerland, the temperature in Basel on that day was not the coldest ever recorded, as La Brévine, known as the "Siberia of Switzerland," reached -41.8°C on January 12, 1987. Despite these comparisons, the frigid day in Basel remains a notable event in the city's climatic history.


Table 1: Lowest Temperature Records: Switzerland, Europe, and Worldwide
Region Location Date Temperature Reference
Switzerland La Brévine, NE 1987-01-12 -41.8 MeteoSwiss - Records and extremes
Global Vostock, Antarctica 1983-07-21 -89.2 MeteoSwiss - Records and extremes
Europe AWS Klinck, Greenland 1991-12-22 -69.6 MeteoSwiss - Records and extremes

Figure 1: Temperature before and after coldest Day on 1942-01-22

Data source: opendata.bs
Additional resources: Extreme Weather Watch, MeteoSwiss: Records and extremes

🤖 This text was generated with the assistance of AI. All quantitative statements are derived directly from the dataset listed under Data Source.