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
Start of September brings a slight shift in the average high-temperature, dipping a bit from August's 81.9°F (27.7°C) to a still moderately hot 75.2°F (24°C). During September, Roselle Park sees a mean low-temperature of 60.1°F (15.6°C).Humidity
In September, the average relative humidity is 75%.Rainfall
September is the month with the least rainfall. Rain falls for 9.8 days and accumulates 0.43" (11mm) of precipitation.Snowfall
In Roselle Park, snow does not fall in May through October.Daylight
The average length of the day in September in Roselle Park is 12h and 27min.On the first day of September, sunrise is at 6:24 am and sunset at 7:28 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 in Roselle Park is 8.9h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: An average maximum UV index of 4 in September leads to these recommendations:
Act with care - Obligation to protect against skin and eye damage is highlighted. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
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?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
What is the UV index reading in September in Roselle Park?
Average temperature in September
Roselle Park, NJ
- Average high temperature in September: 75.2°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (36°F).
- Average low temperature in September: 60.1°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 (24.6°F).
Average pressure in September
Roselle Park, 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
Roselle Park, NJ
- Average wind speed in September: 6.6mph
The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is July (6mph).
Average humidity in September
Roselle Park, NJ
- Average humidity in September: 75%
The months with the highest relative humidity are February and December (77%).
The months with the lowest relative humidity are April and August (72%).
Average rainfall in September
Roselle Park, NJ
- Average rainfall in September: 0.43"
The wettest month (with the highest rainfall) is July (1.22").
The driest month (with the least rainfall) is September (0.43").
Average rainfall days in September
Roselle Park, NJ
- Average rainfall days in September: 9.8 days
The month with the highest number of rainy days is July (13.9 days).
The month with the least rainy days is January (5.9 days).
Average snowfall in September
Roselle Park, NJ
- Average snowfall in September: 0"
The month with the highest snowfall is March (0.75").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Roselle Park, NJ
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (5.1 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
Roselle Park, 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 5min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in September
Roselle Park, NJ
- Average sunshine days in September: 17.4 days
The month with the most sunshine days is January (22.1 days).
The month with the least sunshine days is June (13.5 days).
Average UV index in September
Roselle Park, 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
Roselle Park, NJ
- Average cloud cover in September: 35
The months with the most cloud cover are February, March and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Roselle Park, 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).
Roselle Park, New Jersey, USA
Weather forecast for your location
2. Allow the app to use your location