September weather forecastGlenwood, NJ
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Glenwood, New Jersey, with an average temperature fluctuating between 73.2°F (22.9°C) and 53.4°F (11.9°C).Temperature
September is marked by a subtle drop in average high-temperatures, transitioning from a moderately hot 80.1°F (26.7°C) in August to a pleasant 73.2°F (22.9°C). Glenwood experiences an average low-temperature of 53.4°F (11.9°C) in the month of September.Humidity
In Glenwood, the average relative humidity in September is 80%.Rainfall
In Glenwood, in September, during 12.4 rainfall days, 1.73" (44mm) of precipitation is typically accumulated. In Glenwood, New Jersey, during the entire year, the rain falls for 149.5 days and collects up to 28.23" (717mm) of precipitation.Snowfall
In Glenwood, snow does not fall in June through September.Daylight
In Glenwood, the average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 6:25 am and sunset at 7:30 pm. On the last day of September, in Glenwood, sunrise is at 6:54 am and sunset at 6:41 pm EDT.
Sunshine
In Glenwood, the average sunshine in September is 8.4h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: The daily high UV index of 4 during September translates into the following recommendations:
Take measures. Individuals with light skin might experience burns in under 30 minutes. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Glenwood, NJ
- Average high temperature in September: 73.2°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in September: 53.4°F
The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in September
Glenwood, 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
Glenwood, NJ
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is March (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in September
Glenwood, NJ
- Average humidity in September: 80%
The months with the highest relative humidity are February, October and December (82%).
The month with the lowest relative humidity is April (76%).
Average rainfall in September
Glenwood, NJ
- Average rainfall in September: 1.73"
The wettest month (with the highest rainfall) is July (3.31").
The driest month (with the least rainfall) is January (1.61").
Average rainfall days in September
Glenwood, NJ
- Average rainfall days in September: 12.4 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in September
Glenwood, NJ
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.92").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Glenwood, NJ
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Glenwood, 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 24min
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 12min).
Average sunshine days in September
Glenwood, NJ
- Average sunshine days in September: 15.8 days
The months with the most sunshine days are January and November (18.8 days).
The month with the least sunshine days is July (11.8 days).
Average UV index in September
Glenwood, NJ
- Average UV index in September: 4
The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Glenwood, NJ
- Average cloud cover in September: 42
The month with the most cloud cover is February (Cloud cover 53).
The months with the least cloud cover are July and August (Cloud cover 37).
Average visibility in September
Glenwood, 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).





