Reference Data in St. Louis 12 indicators covering reference data for St. Louis. IndicatorLatest Year10-yr change Rank Cooling and heating degree days - Cities and FUAs — Cooling degree 389.99 Degree days 2025 down 2.6% 303rd Cooling and heating degree days - Cities and FUAs — Change in cooling -61.23 Degree days 2025 down 20.8% 1155th Cooling and heating degree days - Cities and FUAs 1,813 Degree days 2025 up 0.4% 492nd Cooling and heating degree days - Cities and FUAs — Change in heating -131.19 Degree days 2025 up 5.6% 329th Precipitation - Cities and FUAs — Extreme precipitation days 14.46 Days per year 2024 up 15.2% 314th Precipitation - Cities and FUAs — Change in extreme precipitation 1.77 Days per year 2024 up 1,449.5% 517th Dependency ratio - Cities and FUAs 29.9 Percentage of population aged 15-64 years 2024 up 34.1% 577th 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 723,096 Persons 2023 down 6.4% 25th Internet speed - Cities and FUAs — Downloading speed 3 Percentage of national value 2025 down 65.1% 776th Internet speed - Cities and FUAs — Uploading speed 60.6 Percentage of national value 2025 up 897.4% 33rd