September weather forecastRochelle Park, NJ
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Rochelle Park, New Jersey, with an average temperature ranging between max 74.5°F (23.6°C) and min 61.7°F (16.5°C).Temperature
As August transitions into September, Rochelle Park sees a gentle drop in the average high-temperature, transitioning from a moderately hot 81.3°F (27.4°C) to a still warm 74.5°F (23.6°C). Rochelle Park's nighttime temperature during September is consistently averaged at a comfortable 61.7°F (16.5°C).Humidity
In Rochelle Park, New Jersey, the average relative humidity in September is 73%.Rainfall
In Rochelle Park, in September, it is raining for 12.9 days, with typically 1.85" (47mm) of accumulated precipitation. In Rochelle Park, during the entire year, the rain falls for 150.3 days and collects up to 27.72" (704mm) of precipitation.Snowfall
In Rochelle Park, New Jersey, snow does not fall in May through October.Daylight
The average length of the day in September is 12h and 27min.On the first day of September in Rochelle Park, sunrise is at 6:23 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 6:39 pm EDT.
Sunshine
The average sunshine in September is 8.9h.UV index
In Rochelle Park, New Jersey, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum high daily UV index of 5 during September translates into the following directions:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Rochelle Park, NJ
- Average high temperature in September: 74.5°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (36.3°F).
- Average low temperature in September: 61.7°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (25.9°F).
Average pressure in September
Rochelle Park, NJ
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Rochelle Park, NJ
- Average wind speed in September: 7.3mph
The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).
Average humidity in September
Rochelle Park, NJ
- Average humidity in September: 73%
The months with the highest relative humidity are February and December (75%).
The month with the lowest relative humidity is August (70%).
Average rainfall in September
Rochelle Park, NJ
- Average rainfall in September: 1.85"
The wettest month (with the highest rainfall) is July (3.23").
The driest months (with the least rainfall) are January and February (1.69").
Average rainfall days in September
Rochelle Park, NJ
- Average rainfall days in September: 12.9 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in September
Rochelle Park, NJ
- Average snowfall in September: 0"
The month with the highest snowfall is March (2.8").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Rochelle Park, NJ
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (5.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Rochelle Park, NJ
- Average daylight in September: 12h and 30min
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).
- Average sunshine in September: 8h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in September
Rochelle Park, NJ
- Average sunshine days in September: 15.2 days
The month with the most sunshine days is January (19.6 days).
The month with the least sunshine days is July (12 days).
Average UV index in September
Rochelle Park, NJ
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Rochelle Park, NJ
- Average cloud cover in September: 34
The months with the most cloud cover are February, March and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in September
Rochelle Park, NJ
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





