Reference Data in McLean 12 indicators covering reference data for McLean. IndicatorLatest Year10-yr change Rank Cooling and heating degree days - Cities and FUAs — Cooling degree 257.04 Degree days 2025 down 8.6% 433rd Cooling and heating degree days - Cities and FUAs — Change in cooling -27.33 Degree days 2025 down 804.7% 962nd Cooling and heating degree days - Cities and FUAs 2,233 Degree days 2025 down 4.1% 289th Cooling and heating degree days - Cities and FUAs — Change in heating -245.75 Degree days 2025 down 62.4% 538th Precipitation - Cities and FUAs — Extreme precipitation days 16.09 Days per year 2024 up 29.9% 267th Precipitation - Cities and FUAs — Change in extreme precipitation 4.31 Days per year 2024 up 611.0% 207th Dependency ratio - Cities and FUAs 22.8 Percentage of population aged 15-64 years 2024 up 39.9% 934th Wind threats - Cities and FUAs — Exposure to wind threats 0 Percentage of area 2023 — 273rd Coastal flooding - Cities and FUAs — Built-up area exposure to 0 Percentage of built-up area 2022 — 277th Main mode of transport to work - Cities and FUAs — Employed persons 71,076 Persons 2023 down 16.2% 211th Internet speed - Cities and FUAs — Downloading speed -3.8 Percentage of national value 2025 down 138.0% 1009th Internet speed - Cities and FUAs — Uploading speed 18.6 Percentage of national value 2025 down 71.6% 325th