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
September ushers in a minor alteration in Rossmoor's climate, with the average high-temperature moving from August's 82.4°F (28°C) to a still moderately hot 75.7°F (24.3°C). An average low-temperature of 60.6°F (15.9°C) is noted during the nights in September.Humidity
In Rossmoor, the average relative humidity in September is 75%.Rainfall
The month with the least rainfall in Rossmoor is September, when the rain falls for 7.5 days and typically collects 0.28" (7mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
In September, the average length of the day is 12h and 27min.On the first day of the month, sunrise is at 6:26 am and sunset at 7:29 pm. On the last day of September, sunrise is at 6:54 am and sunset at 6:41 pm EDT.
Sunshine
The average sunshine in September is 8.7h.UV index
The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index of 5 during September translates into these guidelines:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Rossmoor?
What is the average humidity in September?
What is the driest month?
How much does it rain in September?
When it does not snow?
What is the average length of the day in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Rossmoor, NJ
- Average high temperature in September: 75.7°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (37°F).
- Average low temperature in September: 60.6°F
The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (25°F).
Average pressure in September
Rossmoor, 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
Rossmoor, NJ
- Average wind speed in September: 6.5mph
The windiest month (with the highest average wind speed) is March (9.3mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity in September
Rossmoor, NJ
- Average humidity in September: 75%
The months with the highest relative humidity are February, May, October and December (77%).
The months with the lowest relative humidity are April and August (73%).
Average rainfall in September
Rossmoor, NJ
- Average rainfall in September: 0.28"
The wettest month (with the highest rainfall) is July (0.94").
The driest month (with the least rainfall) is September (0.28").
Average rainfall days in September
Rossmoor, NJ
- Average rainfall days in September: 7.5 days
The month with the highest number of rainy days is July (10.7 days).
The months with the least rainy days are January and November (4.8 days).
Average snowfall in September
Rossmoor, NJ
- Average snowfall in September: 0"
The month with the highest snowfall is March (0.51").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Rossmoor, NJ
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.8 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
Rossmoor, 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 24min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in September
Rossmoor, NJ
- Average sunshine days in September: 20.5 days
The month with the most sunshine days is January (24.2 days).
The month with the least sunshine days is July (15.7 days).
Average UV index in September
Rossmoor, 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
Rossmoor, NJ
- Average cloud cover in September: 37
The months with the most cloud cover are February, March and December (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility in September
Rossmoor, 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).
Rossmoor, New Jersey, USA
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