September weather forecastEast Orange, NJ
September
Weather in September
September prepares to bid adieu to summer and make way for the fall season. With temperatures gradually declining from 81.9°F (27.7°C) to 75°F (23.9°C), East Orange witnesses the initial transitions of the year's colorful phase. Yet, it does not entirely lose its summery essence, with warm afternoons and cool mornings. Keep an eye out for changing foliage that begins to blanket the city in an array of mellow colors.Temperature
A subtle shift in East Orange's weather is observed as August turns into September, with the average high temperature reducing from a warm 81.9°F (27.7°C) to a still moderately hot 75°F (23.9°C). In East Orange, the September nights cool down to an average low of 60.1°F (15.6°C).Humidity
In East Orange, the average relative humidity in September is 74%.Rainfall
September is the month with the least rainfall. Rain falls for 13.1 days and accumulates 2.01" (51mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In September, the average length of the day is 12h and 27min.On the first day of the month, sunrise is at 6:24 am and sunset at 7:28 pm. On the last day of September, sunrise is at 6:53 am and sunset at 6:40 pm EDT.
Sunshine
In East Orange, the average sunshine in September is 8.9h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The average daily UV index of 4 in September transforms into the following instructions:
Ensure safety - Recommendations to avert sunburn are presented. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
East Orange, NJ
- Average high temperature in September: 75°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (35.6°F).
- Average low temperature in September: 60.1°F
The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in September
East Orange, NJ
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
East Orange, NJ
- Average wind speed in September: 6.5mph
The windiest months (with the highest average wind speed) are January and March (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in September
East Orange, NJ
- Average humidity in September: 74%
The months with the highest relative humidity are February and December (77%).
The month with the lowest relative humidity is August (71%).
Average rainfall in September
East Orange, NJ
- Average rainfall in September: 2.01"
The wettest month (with the highest rainfall) is December (3.54").
The driest month (with the least rainfall) is September (2.01").
Average rainfall days in September
East Orange, NJ
- Average rainfall days in September: 13.1 days
The months with the highest number of rainy days are May and July (17.3 days).
The month with the least rainy days is January (9.3 days).
Average snowfall in September
East Orange, NJ
- Average snowfall in September: 0"
The month with the highest snowfall is March (3.46").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
East Orange, NJ
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (7.3 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
East Orange, 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 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in September
East Orange, NJ
- Average sunshine days in September: 14.7 days
The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is June (10.9 days).
Average UV index in September
East Orange, NJ
- Average UV index in September: 4
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
East Orange, NJ
- Average cloud cover in September: 35
The month with the most cloud cover is March (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 31).
Average visibility in September
East Orange, 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).





