Reference Data in Mantes-la-Jolie 12 indicators covering reference data for Mantes-la-Jolie. IndicatorLatest Year10-yr change Rank Cooling and heating degree days - Cities and FUAs — Cooling degree 24.61 Degree days 2025 down 70.5% 924th Cooling and heating degree days - Cities and FUAs — Change in cooling -24.96 Degree days 2025 down 173.7% 935th Cooling and heating degree days - Cities and FUAs 1,032 Degree days 2025 down 39.5% 877th Cooling and heating degree days - Cities and FUAs — Change in heating -912.67 Degree days 2025 down 281.6% 1295th Precipitation - Cities and FUAs — Extreme precipitation days 3.67 Days per year 2024 down 8.3% 904th Precipitation - Cities and FUAs — Change in extreme precipitation 2.28 Days per year 2024 down 12.8% 423rd Dependency ratio - Cities and FUAs 24.1 Percentage of population aged 15-64 years 2022 up 23.0% 875th Wind threats - Cities and FUAs — Exposure to wind threats 0 Percentage of area 2023 — 273rd 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 32,143 Persons 2022 up 3.7% 262nd Internet speed - Cities and FUAs — Downloading speed 26.5 Percentage of national value 2025 down 43.9% 105th Internet speed - Cities and FUAs — Uploading speed 26.6 Percentage of national value 2025 down 51.0% 224th