Weather in Amerikan Yhdysvallat in syyskuu
Country-wide climate normals across 27 cities in Amerikan Yhdysvallat.
How Hot Is Amerikan Yhdysvallat in syyskuu?
Hot weather dominates Amerikan Yhdysvallat: September averages 28°C, with the warmest cities reaching 34°C.
Sunshine in Amerikan Yhdysvallat in syyskuu
Sun and cloud trade off across Amerikan Yhdysvallat in September: New York City averages 4.9h of direct sun a day, with daylight from 6:35 am to 7:05 pm. Conditions vary day to day, with bright spells interrupted by cloudy stretches. Most regions of the country see a similar mixed pattern, though some areas may lean drier or wetter than the national average.
Does It Rain In Amerikan Yhdysvallat In syyskuu?
Heavy rain shapes Amerikan Yhdysvallat's September: New York City averages 101mm across 9 days, and most regions of the country see similar persistent wet conditions. Long sunny stretches are rare. Expect rain on roughly two out of every three days.
Is Amerikan Yhdysvallat Humid In syyskuu?
Amerikan Yhdysvallat's September is humid — 64% on average in New York City, with similar muggy conditions in most regions. Afternoons feel sticky, especially after rain, and the moisture amplifies warm-day temperatures noticeably. Coastal cities see the highest readings.
Wind In Amerikan Yhdysvallat In syyskuu
Amerikan Yhdysvallat's September has gentle wind — New York City averages 18 kph, and the country tracks similarly. Outdoor activity is comfortable, and afternoon thermals add a pleasant breeze in inland areas.
Cloud Cover In Amerikan Yhdysvallat In syyskuu
Cloudy skies dominate Amerikan Yhdysvallat in September — 52% cover in New York City, with similar overcast conditions in most regions. Direct sun is patchy and broken; expect grey stretches between brief bright moments. Coastal areas may be heavier than inland.