September weather forecastWest Orange, NJ
September
Weather in September
September, the first month of the autumn in West Orange, is still a warm month, with an average temperature fluctuating between 74.7°F (23.7°C) and 59.4°F (15.2°C).Temperature
In September, the meteorological conditions change slightly, with the average high-temperature moving from a warm 81.9°F (27.7°C) in August to a still moderately hot 74.7°F (23.7°C). During the September nights, an average temperature of 59.4°F (15.2°C) is observed.Humidity
In West Orange, New Jersey, the average relative humidity in September is 75%.Rainfall
In West Orange, during September, the rain falls for 11.2 days and regularly aggregates up to 0.75" (19mm) of precipitation. In West Orange, during the entire year, the rain falls for 127.3 days and collects up to 12.68" (322mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
The average length of the day in September 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 September, the average sunshine is 8.9h.UV index
In West Orange, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: An average UV index of 4 in September transforms into this advice:
Adopt protective measures - It is advised to guard against sun damage. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
West Orange, NJ
- Average high temperature in September: 74.7°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (35.2°F).
- Average low temperature in September: 59.4°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (23.7°F).
Average pressure in September
West 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
West Orange, NJ
- Average wind speed in September: 6.3mph
The windiest month (with the highest average wind speed) is January (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in September
West Orange, NJ
- Average humidity in September: 75%
The months with the highest relative humidity are February and December (78%).
The months with the lowest relative humidity are April and August (72%).
Average rainfall in September
West Orange, NJ
- Average rainfall in September: 0.75"
The wettest month (with the highest rainfall) is July (1.61").
The driest month (with the least rainfall) is January (0.67").
Average rainfall days in September
West Orange, NJ
- Average rainfall days in September: 11.2 days
The month with the highest number of rainy days is July (15.5 days).
The month with the least rainy days is January (6.1 days).
Average snowfall in September
West Orange, NJ
- Average snowfall in September: 0"
The month with the highest snowfall is March (1.22").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
West Orange, NJ
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (5.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
West 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
West Orange, NJ
- Average sunshine days in September: 15.8 days
The month with the most sunshine days is November (21.3 days).
The month with the least sunshine days is July (12.5 days).
Average UV index in September
West 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
West Orange, NJ
- Average cloud cover in September: 36
The months with the most cloud cover are February and March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
West 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).
