September weather forecast
Clarksburg, NJ

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Weather in September

The first month of the autumn, September, is still a warm month in Clarksburg, New Jersey, with temperature in the range of an average low of 60.4°F (15.8°C) and an average high of 75.4°F (24.1°C).

Temperature

Clarksburg's September weather shows a modest shift in high-temperatures, falling from August's 81.9°F (27.7°C) to a still warm 75.4°F (24.1°C). In September, Clarksburg experiences an average nighttime temperature of 60.4°F (15.8°C).

Humidity

In September, the average relative humidity is 78%.

Rainfall

September is the month with the least rainfall. Rain falls for 13.4 days and accumulates 1.69" (43mm) of precipitation.

Snowfall

In Clarksburg, snow does not fall in June through October.

Daylight

In September, the average length of the day in Clarksburg is 12h and 27min.
On the first day of the month, sunrise is at 6:26 am and sunset at 7:28 pm. On the last day of September, sunrise is at 6:53 am and sunset at 6:41 pm EDT.

Sunshine

In September, the average sunshine is 8.8h.

UV index

In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.
Note: A daily maximum UV index of 5 in September translates into the following instructions:
Take precautions - Protection against sun damage is advised. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Updated: Aug 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in September?

During September, Clarksburg experiences an average high-temperature of 75.4°F (24.1°C) and a low-temperature of 60.4°F (15.8°C). The average heat index (a.k.a. 'feels like', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in August is evaluated at 87.8°F (31°C).

What is the average humidity in September?

In September, the average relative humidity is 78%.

What is the driest month?

September is the month with the least rainfall. Rain falls for 13.4 days and accumulates 1.69" (43mm) of precipitation.

How much does it rain in September?

In Clarksburg, in September, during 13.4 rainfall days, 1.69" (43mm) of precipitation is typically accumulated.

When it does not snow?

June through October are months without snowfall.

How many hours of daylight does Clarksburg have in September?

In September, the average day length is 12h and 27min.

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:26 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 6:41 pm EDT.

How many hours of sunshine does Clarksburg have in September?

The average sunshine duration in September is 8.8h.

What is the UV index reading in September?

The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Clarksburg, NJ

Average temperature in September - Clarksburg, NJ
  • Average high temperature in September: 75.4°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (37.4°F).

  • Average low temperature in September: 60.4°F

The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (25.3°F).

Average pressure in September
Clarksburg, NJ

Average pressure in September - Clarksburg, 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
Clarksburg, NJ

Average wind speed in September - Clarksburg, NJ
  • Average wind speed in September: 6.6mph

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
Clarksburg, NJ

Average humidity in September - Clarksburg, NJ
  • Average humidity in September: 78%

The months with the highest relative humidity are June and October (79%).
The month with the lowest relative humidity is April (73%).

Average rainfall in September
Clarksburg, NJ

Average rainfall in September - Clarksburg, NJ
  • Average rainfall in September: 1.69"

The wettest month (with the highest rainfall) is July (3.5").
The driest month (with the least rainfall) is September (1.69").

Average rainfall days in September
Clarksburg, NJ

Average rainfall days in September - Clarksburg, NJ
  • Average rainfall days in September: 13.4 days

The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is January (8.4 days).

Average snowfall in September
Clarksburg, NJ

Average snowfall in September - Clarksburg, NJ
  • Average snowfall in September: 0"

The month with the highest snowfall is March (3.23").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in September
Clarksburg, NJ

Average snowfall days in September - Clarksburg, NJ
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (5.3 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
Clarksburg, NJ

Average daylight in September / Average sunshine in September - Clarksburg, 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 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 48min).

Average sunshine days in September
Clarksburg, NJ

Average sunshine days in September - Clarksburg, NJ
  • Average sunshine days in September: 14.1 days

The month with the most sunshine days is November (19 days).
The month with the least sunshine days is July (10.8 days).

Average UV index in September
Clarksburg, NJ

Average UV index in September - Clarksburg, NJ
  • Average UV index in September: 5

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
Clarksburg, NJ

Average cloud cover in September - Clarksburg, NJ
  • Average cloud cover in September: 36

The months with the most cloud cover are February, March and December (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 31).

Average visibility in September
Clarksburg, NJ

Average visibility in September - Clarksburg, 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).

Clarksburg, New Jersey, USA

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