Climate Change in Napa 12 indicators covering climate change for Napa. IndicatorLatest Year10-yr change Rank Air temperature, hot days, tropical nights and icing days - Cities 22.37 Degrees celsius 2025 up 38.1% 143rd Air temperature, hot days, tropical nights and icing days - Cities 7.18 Degrees celsius 2025 up 614.9% 34th Climate projections by scenario, 2030–2060 – Cities and FUAs 17.19 Degrees celsius 2060 up 1.3% 386th Climate projections by scenario, 2030–2060 – Cities and FUAs 1.95 Degrees celsius 2060 up 12.8% 407th Greenhouse gas emissions - Cities and FUAs — GHG emissions from 0.02 Tonnes of CO2-equivalent 2024 unchanged 552nd Greenhouse gas emissions - Cities and FUAs — GHG emissions from 0.26 Tonnes of CO2-equivalent 2024 down 3.7% 378th Greenhouse gas emissions - Cities and FUAs — GHG emissions from 0.29 Tonnes of CO2-equivalent 2024 up 7.4% 497th Greenhouse gas emissions - Cities and FUAs — GHG emissions from 0.28 Tonnes of CO2-equivalent 2024 up 12.0% 483rd Greenhouse gas emissions - Cities and FUAs — GHG emissions from power 0.01 Tonnes of CO2-equivalent 2024 — 714th Greenhouse gas emissions - Cities and FUAs — GHG emissions from road 0.42 Tonnes of CO2-equivalent 2024 down 2.3% 347th Greenhouse gas emissions - Cities and FUAs — GHG emissions total 1.05 Tonnes of CO2-equivalent 2024 up 2.9% 530th Greenhouse gas emissions - Cities and FUAs — GHG emissions from 0.45 Tonnes of CO2-equivalent 2024 unchanged 337th