Reference Data in Chatham 12 indicators covering reference data for Chatham. IndicatorLatest Year10-yr change Rank Cooling and heating degree days - Cities and FUAs — Cooling degree 633.75 Degree days 2025 down 13.4% 155th Cooling and heating degree days - Cities and FUAs — Change in cooling -42.6 Degree days 2025 down 176.3% 1082nd Cooling and heating degree days - Cities and FUAs 479.9 Degree days 2025 up 14.9% 1068th Cooling and heating degree days - Cities and FUAs — Change in heating -40.5 Degree days 2025 up 60.6% 168th Precipitation - Cities and FUAs — Extreme precipitation days 16.3 Days per year 2024 up 0.3% 260th Precipitation - Cities and FUAs — Change in extreme precipitation 3.4 Days per year 2024 up 1.5% 282nd Dependency ratio - Cities and FUAs 26.5 Percentage of population aged 15-64 years 2024 up 31.2% 767th Wind threats - Cities and FUAs — Exposure to wind threats 8.47 Percentage of area 2023 — 212th 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 129,193 Persons 2023 up 12.1% 139th Internet speed - Cities and FUAs — Downloading speed 5 Percentage of national value 2025 down 55.8% 683rd Internet speed - Cities and FUAs — Uploading speed 12.7 Percentage of national value 2025 up 2,440.0% 426th