Reference Data in Douai 12 indicators covering reference data for Douai. IndicatorLatest Year10-yr change Rank Cooling and heating degree days - Cities and FUAs — Cooling degree 31.44 Degree days 2025 down 46.7% 870th Cooling and heating degree days - Cities and FUAs — Change in cooling -8.3 Degree days 2025 down 143.0% 659th Cooling and heating degree days - Cities and FUAs 1,926 Degree days 2025 up 8.4% 436th Cooling and heating degree days - Cities and FUAs — Change in heating -88.3 Degree days 2025 up 62.8% 256th Precipitation - Cities and FUAs — Extreme precipitation days 1.4 Days per year 2024 down 30.0% 1185th Precipitation - Cities and FUAs — Change in extreme precipitation 0.1134 Days per year 2024 down 84.1% 844th Dependency ratio - Cities and FUAs 31.2 Percentage of population aged 15-64 years 2022 up 27.3% 501st Wind threats - Cities and FUAs — Exposure to wind threats 100 Percentage of area 2023 up 877.0% 1st Coastal flooding - Cities and FUAs — Built-up area exposure to 0 Percentage of built-up area 2022 — 277th Main mode of transport to work - Cities and FUAs — Employed persons 28,445 Persons 2022 up 2.9% 269th Internet speed - Cities and FUAs — Downloading speed 10 Percentage of national value 2025 down 79.4% 485th Internet speed - Cities and FUAs — Uploading speed 12.9 Percentage of national value 2025 down 82.4% 424th