September weather forecastStockholm, NJ
September
Weather in September
The first month of the autumn, September, is still a warm month in Stockholm, New Jersey, with temperature in the range of an average high of 73.6°F (23.1°C) and an average low of 54.7°F (12.6°C).Temperature
As August makes way for September, Stockholm's average high-temperature eases from a moderately hot 80.2°F (26.8°C) to a still warm 73.6°F (23.1°C). An average low-temperature of 54.7°F (12.6°C) is expected during September.Humidity
In September, the average relative humidity is 80%.Rainfall
In Stockholm, in September, it is raining for 12.1 days, with typically 0.79" (20mm) of accumulated precipitation. In Stockholm, during the entire year, the rain falls for 133 days and collects up to 14.02" (356mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day in Stockholm is 12h and 28min.On the first day of September, 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.
Sunshine
In September, the average sunshine is 8.2h.UV index
In Stockholm, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: The UV index of 4 during September leads to these advisories:
Undertake protective steps - Recommendations to avoid sunburn are issued. When the Sun is at its strongest around midday, find shade and limit exposure. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Stockholm, NJ
- Average high temperature in September: 73.6°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (33.3°F).
- Average low temperature in September: 54.7°F
The month with the highest average low temperature is July (62.8°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in September
Stockholm, NJ
- Average pressure in September: 30.06"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
Stockholm, NJ
- Average wind speed in September: 5.5mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in September
Stockholm, NJ
- Average humidity in September: 80%
The month with the highest relative humidity is October (82%).
The month with the lowest relative humidity is April (76%).
Average rainfall in September
Stockholm, NJ
- Average rainfall in September: 0.79"
The wettest month (with the highest rainfall) is July (1.85").
The driest month (with the least rainfall) is January (0.71").
Average rainfall days in September
Stockholm, NJ
- Average rainfall days in September: 12.1 days
The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is January (5.3 days).
Average snowfall in September
Stockholm, NJ
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.5").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Stockholm, NJ
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Stockholm, 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 12min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).
Average sunshine days in September
Stockholm, NJ
- Average sunshine days in September: 16.2 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is June (12.1 days).
Average UV index in September
Stockholm, NJ
- Average UV index in September: 4
The month with the highest UV index is June (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
Stockholm, NJ
- Average cloud cover in September: 43
The months with the most cloud cover are February and March (Cloud cover 53).
The months with the least cloud cover are July and August (Cloud cover 38).
Average visibility in September
Stockholm, NJ
- Average visibility in September: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).





