{"destination_name":"Nashville","destination_slug":"nashville","month_name":"September","month_num":9,"buckets":[{"half":1,"half_label":"Early September","pct_clear":48,"avg_high_f":85,"n_days":120},{"half":2,"half_label":"Late September","pct_clear":47,"avg_high_f":81,"n_days":120}],"month_pct_clear":48,"avg_high_f":83,"total_n":240,"source":"Open-Meteo ERA5 archive-api, 8 full years (2018–2025), daily temperature_2m_max / precipitation_sum / weathercode","temporal_coverage":"2018/2025","note":"Historical averages only. Not a forecast.","page_url":"https://sunnydays.thedigitalcarpenter.com/destinations/nashville/september","month_hub_url":"https://sunnydays.thedigitalcarpenter.com/warm-in/september"}