Reference Data in Dunkerque 12 indicators covering reference data for Dunkerque. IndicatorLatest Year10-yr change Rank Cooling and heating degree days - Cities and FUAs — Cooling degree 10.33 Degree days 2025 down 63.2% 1080th Cooling and heating degree days - Cities and FUAs — Change in cooling -15.21 Degree days 2025 down 698.4% 797th Cooling and heating degree days - Cities and FUAs 1,476 Degree days 2025 down 7.2% 694th Cooling and heating degree days - Cities and FUAs — Change in heating -365.64 Degree days 2025 down 45.6% 748th Precipitation - Cities and FUAs — Extreme precipitation days 1 Days per year 2024 down 50.0% 1216th Precipitation - Cities and FUAs — Change in extreme precipitation -0.3889 Days per year 2024 down 163.6% 954th Dependency ratio - Cities and FUAs 33.8 Percentage of population aged 15-64 years 2022 up 34.1% 385th Wind threats - Cities and FUAs — Exposure to wind threats 100 Percentage of area 2023 unchanged 1st Coastal flooding - Cities and FUAs — Built-up area exposure to 59.05 Percentage of built-up area 2022 down 0.5% 26th Main mode of transport to work - Cities and FUAs — Employed persons 44,186 Persons 2022 up 2.4% 246th Internet speed - Cities and FUAs — Downloading speed 2.9 Percentage of national value 2025 down 85.3% 781st Internet speed - Cities and FUAs — Uploading speed -2.2 Percentage of national value 2025 down 144.4% 772nd