Weather in September
's weather in Parsippany-Troy Hills
charts the commencement of cooler days. Recording a cooling trend, temperatures float between a comfortable 53°F (11.7°C) and a gentle 78°F (25.6°C). As the month progresses, the heat wave from August
begins to dissolve, signaling the onset of autumn. The city carries a crisp vibe, with hints of foliage transforming into vibrant autumnal colors. Entering October
, the slide into cooler days continues.
September in Parsippany-Troy Hills signals a slight drop in average high-temperature, sliding from August's moderately hot 84.9°F (29.4°C) to a still warm 78.1°F (25.6°C). The nighttime average for Parsippany-Troy Hills in September plummets considerably from its daytime counterpart, resting at a cool 53.1°F (11.7°C).
The month with the most rainfall is September, when 4.88" (124mm) of precipitation is typically aggregated.
The average length of the day in September is 12h and 27min.
On the first day of the month, sunrise is at 6:25 am and sunset at 7:29 pm. On the last day of September, in Parsippany-Troy Hills, sunrise is at 6:53 am and sunset at 6:40 pm EDT.