Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The average high-temperature shows a slight dip in September, from August's moderately hot 81.9°F (27.7°C) to a still warm 74.7°F (23.7°C). An average low-temperature of 56.1°F (13.4°C) is expected during September.Humidity
The average relative humidity in September is 79%.Rainfall
The month with the least rainfall in Glen Gardner, New Jersey, is September, when the rain falls for 9.9 days and typically collects 0.75" (19mm) of precipitation.Snowfall
In Glen Gardner, snow does not fall in June through October.Daylight
The average length of the day in September is 12h and 27min.On the first day of September, sunrise is at 6:27 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 6:43 pm EDT.
Sunshine
The average sunshine in September is 8.7h.UV index
The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: A daily maximum UV index of 4 in September translates into the following instructions:
Adopt protective measures - Suggestions to resist sunburn are offered. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
What is the driest month?
How many days does it rain in September?
When it does not snow in Glen Gardner?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Glen Gardner have in September?
What is the UV index reading in September?
Average temperature in September
Glen Gardner, NJ
- Average high temperature in September: 74.7°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (35.1°F).
- Average low temperature in September: 56.1°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).
Average pressure in September
Glen Gardner, 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
Glen Gardner, NJ
- Average wind speed in September: 5.5mph
The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in September
Glen Gardner, NJ
- Average humidity in September: 79%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is April (75%).
Average rainfall in September
Glen Gardner, NJ
- Average rainfall in September: 0.75"
The wettest month (with the highest rainfall) is July (1.65").
The driest month (with the least rainfall) is September (0.75").
Average rainfall days in September
Glen Gardner, NJ
- Average rainfall days in September: 9.9 days
The month with the highest number of rainy days is May (13.9 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in September
Glen Gardner, NJ
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.26").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Glen Gardner, NJ
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (6 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Glen Gardner, NJ
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in September
Glen Gardner, NJ
- Average sunshine days in September: 17.9 days
The month with the most sunshine days is January (20.2 days).
The month with the least sunshine days is May (13.1 days).
Average UV index in September
Glen Gardner, 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
Glen Gardner, NJ
- Average cloud cover in September: 39
The months with the most cloud cover are February and December (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 35).
Average visibility in September
Glen Gardner, NJ
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, November and December (6mi).
The months with the lowest visibility are May, June, July, August, September and October (5mi).
Glen Gardner, New Jersey, USA
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