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 sees a slight reduction in average high-temperature, with a shift from 82.6°F (28.1°C) in August to a still moderately hot 75.9°F (24.4°C). The temperature lowers to an average of 60.6°F (15.9°C) during September nights.Humidity
In September, the average relative humidity is 75%.Rainfall
September is the month with the least rainfall. Rain falls for 8.9 days and accumulates 0.43" (11mm) of precipitation.Snowfall
In Highland Park, snow does not fall in April through September.Daylight
In September, the average length of the day in Highland Park is 12h and 27min.On the first day of September in Highland Park, New Jersey, sunrise is at 6:25 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 6:41 pm EDT.
Sunshine
In September, the average sunshine is 8.6h.UV index
In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 5 during September translates into the following directions:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Highland Park in September?
What is the average humidity in September in Highland Park?
What is the driest month in Highland Park?
How many days does it rain in September in Highland Park?
When it does not snow in Highland Park?
Does it snow in Highland Park in September?
How many hours of daylight does Highland Park have in September?
What time are sunrise and sunset in September in Highland Park?
How many hours of sunshine does Highland Park have in September?
How high is the UV index in September in Highland Park?
Average temperature in September
Highland Park, NJ
- Average high temperature in September: 75.9°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (36.9°F).
- Average low temperature in September: 60.6°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (25°F).
Average pressure in September
Highland 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
Highland Park, NJ
- Average wind speed in September: 6.6mph
The windiest month (with the highest average wind speed) is March (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.1mph).
Average humidity in September
Highland Park, NJ
- Average humidity in September: 75%
The months with the highest relative humidity are February, October and December (77%).
The months with the lowest relative humidity are April and August (72%).
Average rainfall in September
Highland Park, NJ
- Average rainfall in September: 0.43"
The wettest month (with the highest rainfall) is July (1.18").
The driest month (with the least rainfall) is September (0.43").
Average rainfall days in September
Highland Park, NJ
- Average rainfall days in September: 8.9 days
The month with the highest number of rainy days is July (12.5 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in September
Highland Park, NJ
- Average snowfall in September: 0"
The month with the highest snowfall is March (0.55").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in September
Highland Park, NJ
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Highland Park, 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
Highland Park, NJ
- Average sunshine days in September: 18.1 days
The month with the most sunshine days is January (22.9 days).
The month with the least sunshine days is July (15.3 days).
Average UV index in September
Highland Park, 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
Highland Park, NJ
- Average cloud cover in September: 38
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 32).
Average visibility in September
Highland 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).
Highland Park, New Jersey, USA
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