Reference Data in New Haven 12 indicators covering reference data for New Haven. IndicatorLatest Year10-yr change Rank Cooling and heating degree days - Cities and FUAs — Cooling degree 121.12 Degree days 2025 down 40.9% 612th Cooling and heating degree days - Cities and FUAs — Change in cooling -48.97 Degree days 2025 down 240.6% 1112th Cooling and heating degree days - Cities and FUAs 2,404 Degree days 2025 down 2.6% 203rd Cooling and heating degree days - Cities and FUAs — Change in heating -17.23 Degree days 2025 down 136.3% 131st Precipitation - Cities and FUAs — Extreme precipitation days 14.36 Days per year 2024 down 0.5% 319th Precipitation - Cities and FUAs — Change in extreme precipitation -1.78 Days per year 2024 down 4.2% 1192nd Dependency ratio - Cities and FUAs 30.7 Percentage of population aged 15-64 years 2024 up 29.0% 533rd Wind threats - Cities and FUAs — Exposure to wind threats 100 Percentage of area 2023 up 13.1% 1st Coastal flooding - Cities and FUAs — Built-up area exposure to 0.4075 Percentage of built-up area 2022 down 4.4% 135th Main mode of transport to work - Cities and FUAs — Employed persons 444,312 Persons 2023 down 5.6% 39th Internet speed - Cities and FUAs — Downloading speed 18.6 Percentage of national value 2025 up 244.4% 227th Internet speed - Cities and FUAs — Uploading speed 52.1 Percentage of national value 2025 up 189.8% 60th