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
With the commencement of September, Edison records a moderate temperature decline, with the average high easing from August's moderately hot 82.6°F (28.1°C) to a still warm 75.6°F (24.2°C). During September nights, Edison witnesses a consistent average temperature of 60.4°F (15.8°C).Humidity
The average relative humidity in September is 75%.Rainfall
The month with the least rainfall is September, when the rain falls for 12.8 days and typically collects 1.54" (39mm) of precipitation.Snowfall
May through October 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 6:25 am and sunset at 7:29 pm. On the last day of September, sunrise is at 6:53 am and sunset at 6:40 pm EDT.
Sunshine
In Edison, the average sunshine in September is 8.6h.UV index
The average daily maximum UV index in September in Edison, New Jersey, is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: In September, an average UV index of 5 transforms into the following instructions:
Heed the precautions - Suggestions to avoid sunburn are made. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the average humidity in September?
What is the driest month?
How much does it rain in Edison in September?
When it does not snow in Edison?
How many hours of daylight does Edison have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Edison have in September?
How high is the UV index in September?
Average temperature in September
Edison, NJ
- Average high temperature in September: 75.6°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (36.7°F).
- Average low temperature in September: 60.4°F
The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (25°F).
Average pressure in September
Edison, 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
Edison, NJ
- Average wind speed in September: 6.5mph
The windiest month (with the highest average wind speed) is March (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in September
Edison, NJ
- Average humidity in September: 75%
The months with the highest relative humidity are February, October and December (77%).
The month with the lowest relative humidity is August (72%).
Average rainfall in September
Edison, NJ
- Average rainfall in September: 1.54"
The wettest month (with the highest rainfall) is July (3.07").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days in September
Edison, NJ
- Average rainfall days in September: 12.8 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in September
Edison, NJ
- Average snowfall in September: 0"
The month with the highest snowfall is March (3.27").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Edison, NJ
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (5.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Edison, NJ
- Average daylight in September: 12h and 2min
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
Edison, NJ
- Average sunshine days in September: 14.7 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in September
Edison, NJ
- Average UV index in September: 5
The months with the highest UV index are May, 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
Edison, NJ
- Average cloud cover in September: 38
The months with the most cloud cover are February and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in September
Edison, 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).
Edison, New Jersey, USA
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