Climate Change in Hartford 12 indicators covering climate change for Hartford. IndicatorLatest Year10-yr change Rank Air temperature, hot days, tropical nights and icing days - Cities 12.07 Degrees celsius 2025 up 21.9% 648th Air temperature, hot days, tropical nights and icing days - Cities 2.29 Degrees celsius 2025 up 1,773.6% 350th Climate projections by scenario, 2030–2060 – Cities and FUAs 12.78 Degrees celsius 2060 up 0.2% 735th Climate projections by scenario, 2030–2060 – Cities and FUAs 2.2 Degrees celsius 2060 up 1.1% 221st Greenhouse gas emissions - Cities and FUAs — GHG emissions from 0.01 Tonnes of CO2-equivalent 2024 down 50.0% 695th Greenhouse gas emissions - Cities and FUAs — GHG emissions from 1.7 Tonnes of CO2-equivalent 2024 down 10.5% 68th Greenhouse gas emissions - Cities and FUAs — GHG emissions from 1.29 Tonnes of CO2-equivalent 2024 up 7.5% 181st Greenhouse gas emissions - Cities and FUAs — GHG emissions from 1.24 Tonnes of CO2-equivalent 2024 up 6.9% 178th Greenhouse gas emissions - Cities and FUAs — GHG emissions from power 2.09 Tonnes of CO2-equivalent 2024 up 11.8% 91st Greenhouse gas emissions - Cities and FUAs — GHG emissions from road 2.32 Tonnes of CO2-equivalent 2024 down 0.9% 51st Greenhouse gas emissions - Cities and FUAs — GHG emissions total 7.74 Tonnes of CO2-equivalent 2024 up 1.3% 100th Greenhouse gas emissions - Cities and FUAs — GHG emissions from 2.4 Tonnes of CO2-equivalent 2024 unchanged 52nd