Reference Data in San Antonio 16 indicators covering reference data for San Antonio. IndicatorLatest Year10-yr change Rank Cooling and heating degree days - Cities and FUAs — Cooling degree 1,073 Degree days 2025 up 16.3% 59th Cooling and heating degree days - Cities and FUAs — Change in cooling 113.58 Degree days 2025 up 408.3% 163rd Cooling and heating degree days - Cities and FUAs 360.64 Degree days 2025 down 30.8% 1103rd Cooling and heating degree days - Cities and FUAs — Change in heating -106.5 Degree days 2025 down 298.2% 284th Cooling and heating degree days - Cities and FUAs — Change in heating 6.76 % change on previous year 2025 up 125.9% 403rd Cooling and heating degree days - Cities and FUAs, annual growth rate 2.19 % change on previous year 2025 up 162.2% 363rd Cooling and heating degree days - Cities and FUAs — Change in cooling -55.98 % change on previous year 2025 up 62.3% 300th Cooling and heating degree days - Cities and FUAs — Cooling degree -11.86 % change on previous year 2025 down 8.6% 227th Precipitation - Cities and FUAs — Extreme precipitation days 8.31 Days per year 2024 up 132.0% 527th Precipitation - Cities and FUAs — Change in extreme precipitation -1.39 Days per year 2024 up 77.3% 1150th Dependency ratio - Cities and FUAs 19.9 Percentage of population aged 15-64 years 2024 up 19.9% 1019th Wind threats - Cities and FUAs — Exposure to wind threats 0 Percentage of area 2023 — 271st 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 849,145 Persons 2023 up 11.5% 20th Internet speed - Cities and FUAs — Downloading speed 16.4 Percentage of national value 2025 down 54.1% 285th Internet speed - Cities and FUAs — Uploading speed 28.6 Percentage of national value 2025 down 69.0% 199th