Reference Data in Calais 12 indicators covering reference data for Calais. IndicatorLatest Year10-yr change Rank Cooling and heating degree days - Cities and FUAs — Cooling degree 4.38 Degree days 2025 down 67.5% 1156th Cooling and heating degree days - Cities and FUAs — Change in cooling -6.39 Degree days 2025 down 335.6% 623rd Cooling and heating degree days - Cities and FUAs 1,463 Degree days 2025 down 7.2% 699th Cooling and heating degree days - Cities and FUAs — Change in heating -352.85 Degree days 2025 down 47.2% 718th Precipitation - Cities and FUAs — Extreme precipitation days 2.67 Days per year 2024 up 33.3% 1040th Precipitation - Cities and FUAs — Change in extreme precipitation 0.8 Days per year 2024 up 500.0% 700th Dependency ratio - Cities and FUAs 29.4 Percentage of population aged 15-64 years 2022 up 40.0% 610th 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 64.47 Percentage of built-up area 2022 down 0.1% 24th Main mode of transport to work - Cities and FUAs — Employed persons 24,017 Persons 2022 up 6.0% 277th Internet speed - Cities and FUAs — Downloading speed 6.1 Percentage of national value 2025 down 85.7% 631st Internet speed - Cities and FUAs — Uploading speed 2.5 Percentage of national value 2025 down 95.2% 665th