Reference Data in Częstochowa 11 indicators covering reference data for Częstochowa. IndicatorLatest Year10-yr change Rank Cooling and heating degree days - Cities and FUAs — Cooling degree 26.79 Degree days 2025 down 83.7% 901st Cooling and heating degree days - Cities and FUAs — Change in cooling -26.24 Degree days 2025 down 123.6% 949th Cooling and heating degree days - Cities and FUAs 2,369 Degree days 2025 down 2.1% 217th Cooling and heating degree days - Cities and FUAs — Change in heating -484.87 Degree days 2025 down 11.6% 1050th Precipitation - Cities and FUAs — Extreme precipitation days 1.63 Days per year 2024 down 72.3% 1168th Precipitation - Cities and FUAs — Change in extreme precipitation -0.7082 Days per year 2024 down 120.0% 1016th Dependency ratio - Cities and FUAs 42.4 Percentage of population aged 15-64 years 2024 up 63.7% 122nd 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 Internet speed - Cities and FUAs — Downloading speed 16.6 Percentage of national value 2025 up 374.3% 281st Internet speed - Cities and FUAs — Uploading speed -9.2 Percentage of national value 2025 up 62.6% 890th