Weather in September
September rings in a noticeable change, welcoming cooler fall temperatures to Randolph. There is an evident dip in temperature from the August average high, with values now down to around 72°F (22.2°C). The fall foliage starts to make an appearance towards the end of the month, coloring the city in vibrant hues. The increasingly shorter days signal the impending onset of the colder months.
On the first day of the month, sunrise is at 6:25 am and sunset at 7:30 pm. On the last day of September, sunrise is at 6:54 am and sunset at 6:41 pm EDT.
Temperature
As September commences, the average high-temperature subtly reduces, transitioning from a moderately hot 80.1°F (26.7°C) in August to an agreeable 72°F (22.2°C). Randolph, during the nights of September, registers a substantial plunge from the daytime high, averaging at a cool 50°F (10°C).Rainfall
The month with the most rainfall is September, when 5.08" (129mm) of precipitation is typically aggregated.Daylight
In Randolph, 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 7:30 pm. On the last day of September, sunrise is at 6:54 am and sunset at 6:41 pm EDT.
Updated: Jun 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
The high-temperature, in September, in Randolph, records 72°F (22.2°C), while the low-temperature is 50°F (10°C).
What is the rainiest month in Randolph?
The month with the most rainfall is September, when 5.08" (129mm) of precipitation is typically aggregated.
How much does it rain in September?
Throughout September, 5.08" (129mm) of precipitation is accumulated.
How many hours of daylight does Randolph have in September?
In Randolph, the average day length in September is 12h and 27min.
When are sunrise and sunset in September?
In September, on the first day of the month, sunrise is at 6:25 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 6:41 pm EDT.
Average temperature in September
Randolph, NJ
- Average high temperature in September: 72°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (36°F).
- Average low temperature in September: 50°F
The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (17°F).
Average rainfall in September
Randolph, NJ
- Average rainfall in September: 5.1"
The wettest month (with the highest rainfall) is September (5.1").
The driest month (with the least rainfall) is February (3.2").
Average daylight in September
Randolph, NJ
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
Randolph, New Jersey, USA
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