{"destination_name":"Park City","destination_slug":"park-city","month_name":"September","month_num":9,"buckets":[{"half":1,"half_label":"Early September","pct_clear":41,"avg_high_f":74,"n_days":120},{"half":2,"half_label":"Late September","pct_clear":19,"avg_high_f":67,"n_days":120}],"month_pct_clear":30,"avg_high_f":70,"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://sunny.day/park-city/september","month_hub_url":"https://sunny.day/warm-in/september"}