Reference Data in Invercargill 11 indicators covering reference data for Invercargill. IndicatorLatest Year10-yr change Rank Cooling and heating degree days - Cities and FUAs — Cooling degree 0 Degree days 2025 down 100.0% 1263rd Cooling and heating degree days - Cities and FUAs — Change in cooling -3.94 Degree days 2025 down 208.2% 561st Cooling and heating degree days - Cities and FUAs 1,603 Degree days 2025 down 17.1% 625th Cooling and heating degree days - Cities and FUAs — Change in heating -330.9 Degree days 2025 down 62,608.5% 679th Precipitation - Cities and FUAs — Extreme precipitation days 6 Days per year 2024 down 14.3% 652nd Precipitation - Cities and FUAs — Change in extreme precipitation -0.0599 Days per year 2024 down 106.4% 880th Dependency ratio - Cities and FUAs 28.7 Percentage of population aged 15-64 years 2024 up 11.7% 650th Wind threats - Cities and FUAs — Exposure to wind threats 96.29 Percentage of area 2023 — 82nd Coastal flooding - Cities and FUAs — Built-up area exposure to 4.84 Percentage of built-up area 2022 down 0.3% 73rd Internet speed - Cities and FUAs — Downloading speed 5.9 Percentage of national value 2025 up 381.0% 638th Internet speed - Cities and FUAs — Uploading speed -0.2 Percentage of national value 2025 up 75.0% 731st