Climate Change in St Catharines 12 indicators covering climate change for St Catharines. IndicatorLatest Year10-yr change Rank Air temperature, hot days, tropical nights and icing days - Cities 10.75 Degrees celsius 2025 up 19.3% 799th Air temperature, hot days, tropical nights and icing days - Cities 1.42 Degrees celsius 2025 up 543.4% 482nd Climate projections by scenario, 2030–2060 – Cities and FUAs 11.85 Degrees celsius 2060 up 0.3% 889th Climate projections by scenario, 2030–2060 – Cities and FUAs 2.14 Degrees celsius 2060 up 1.6% 267th Greenhouse gas emissions - Cities and FUAs — GHG emissions from 0 Tonnes of CO2-equivalent 2024 — 1017th Greenhouse gas emissions - Cities and FUAs — GHG emissions from 0.21 Tonnes of CO2-equivalent 2024 down 8.7% 439th Greenhouse gas emissions - Cities and FUAs — GHG emissions from 0.57 Tonnes of CO2-equivalent 2024 up 18.8% 333rd Greenhouse gas emissions - Cities and FUAs — GHG emissions from 0.54 Tonnes of CO2-equivalent 2024 up 17.4% 331st Greenhouse gas emissions - Cities and FUAs — GHG emissions from power 0.02 Tonnes of CO2-equivalent 2024 unchanged 652nd Greenhouse gas emissions - Cities and FUAs — GHG emissions from road 0.18 Tonnes of CO2-equivalent 2024 down 5.3% 580th Greenhouse gas emissions - Cities and FUAs — GHG emissions total 1.01 Tonnes of CO2-equivalent 2024 up 6.3% 539th Greenhouse gas emissions - Cities and FUAs — GHG emissions from 0.19 Tonnes of CO2-equivalent 2024 down 5.0% 561st