{"destination_name":"Vail","destination_slug":"vail","month_name":"May","month_num":5,"buckets":[{"half":1,"half_label":"Early May","pct_clear":0,"avg_high_f":54,"n_days":120},{"half":2,"half_label":"Late May","pct_clear":0,"avg_high_f":57,"n_days":128}],"month_pct_clear":0,"avg_high_f":56,"total_n":248,"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/vail/may","month_hub_url":"https://sunny.day/warm-in/may"}