Reference Data in St Catharines 11 indicators covering reference data for St Catharines. IndicatorLatest Year10-yr change Rank Cooling and heating degree days - Cities and FUAs — Cooling degree 130.19 Degree days 2025 up 26.7% 605th Cooling and heating degree days - Cities and FUAs — Change in cooling -3.06 Degree days 2025 up 90.0% 536th Cooling and heating degree days - Cities and FUAs 2,679 Degree days 2025 down 5.7% 125th Cooling and heating degree days - Cities and FUAs — Change in heating -109.28 Degree days 2025 down 310.6% 289th Precipitation - Cities and FUAs — Extreme precipitation days 13 Days per year 2024 up 79.3% 368th Precipitation - Cities and FUAs — Change in extreme precipitation 4.67 Days per year 2024 up 534.9% 185th Dependency ratio - Cities and FUAs 37.2 Percentage of population aged 15-64 years 2021 up 30.5% 257th 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 -5.2 Percentage of national value 2025 up 88.2% 1047th Internet speed - Cities and FUAs — Uploading speed -59.2 Percentage of national value 2025 up 5.1% 1305th