September weather forecastPompton Lakes, NJ
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Pompton Lakes, New Jersey, with an average temperature varying between 56.5°F (13.6°C) and 74.5°F (23.6°C).Temperature
September signifies a minor drop in average high-temperature, transitioning from 81.7°F (27.6°C) in August to a still warm 74.5°F (23.6°C). Pompton Lakes's average low-temperature in the month of September is recorded at a refreshing 56.5°F (13.6°C).Humidity
The average relative humidity in September is 77%.Rainfall
September is the month with the least rainfall. Rain falls for 13.2 days and accumulates 1.77" (45mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 28min.On the first day of September in Pompton Lakes, sunrise is at 6:24 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 6:40 pm EDT.
Sunshine
The average sunshine in September is 8.3h.UV index
The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 4 during September translates into the following directions:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Pompton Lakes, NJ
- Average high temperature in September: 74.5°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 (34.5°F).
- Average low temperature in September: 56.5°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in September
Pompton Lakes, 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
Pompton Lakes, NJ
- Average wind speed in September: 5.7mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in September
Pompton Lakes, NJ
- Average humidity in September: 77%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is April (73%).
Average rainfall in September
Pompton Lakes, NJ
- Average rainfall in September: 1.77"
The wettest month (with the highest rainfall) is July (3.23").
The driest month (with the least rainfall) is September (1.77").
Average rainfall days in September
Pompton Lakes, NJ
- Average rainfall days in September: 13.2 days
The month with the highest number of rainy days is June (17.5 days).
The month with the least rainy days is January (8.4 days).
Average snowfall in September
Pompton Lakes, NJ
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.82").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Pompton Lakes, NJ
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Pompton Lakes, 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 18min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in September
Pompton Lakes, NJ
- Average sunshine days in September: 15.1 days
The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is June (10.7 days).
Average UV index in September
Pompton Lakes, 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
Pompton Lakes, NJ
- Average cloud cover in September: 41
The months with the most cloud cover are February and March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Pompton Lakes, NJ
- Average visibility in September: 5mi
The months with the highest visibility are March, April, July, August, October, November and December (6mi).
The months with the lowest visibility are January, February, May, June and September (5mi).





