September weather forecast
Kinnelon, NJ

Share

Weather in September

September, the first month of the autumn in Kinnelon, is still a warm month, with an average temperature ranging between max 74.1°F (23.4°C) and min 55.9°F (13.3°C).

Temperature

Kinnelon observes a small decrease in the average high-temperature with the arrival of September, falling from August's warm 81.1°F (27.3°C) to a still moderately hot 74.1°F (23.4°C). Kinnelon's average low-temperature in September is measured at a moderate 55.9°F (13.3°C).

Humidity

In Kinnelon, the average relative humidity in September is 78%.

Rainfall

The month with the least rainfall is September, when the rain falls for 8.7 days and typically collects 0.31" (8mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

The average length of the day in September is 12h and 28min.
On the first day of the month, sunrise is at 6:24 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 Kinnelon, the average sunshine in September is 8.2h.

UV index

The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.
Note: The daily high UV index of 4 during September translates into the following recommendations:
Exercise prevention - Precautions against solar damage are endorsed. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Updated: Aug 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Kinnelon in September?

The average high-temperature, in September, in Kinnelon, is 74.1°F (23.4°C), while the average low-temperature is 55.9°F (13.3°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which represents the influence of relative humidity on air temperature, in August is evaluated at 86°F (30°C).

What is the average humidity in September?

In September, the average relative humidity is 78%.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 8.7 days and typically collects 0.31" (8mm) of precipitation.

How many days does it rain in September?

In Kinnelon, during September, the rain falls for 8.7 days and regularly aggregates up to 0.31" (8mm) of precipitation.

When it does not snow?

May through September are months without snowfall.

Does it snow in September?

In Kinnelon, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Kinnelon have in September?

The average day length in September is 12h and 28min.

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 6:24 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 6:40 pm EDT.

How many hours of sunshine does Kinnelon have in September?

In September, the average sunshine duration is 8.2h.

How high is the UV index in September?

In Kinnelon, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate vulnerability 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
Kinnelon, NJ

Average temperature in September - Kinnelon, NJ
  • Average high temperature in September: 74.1°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (34.3°F).

  • Average low temperature in September: 55.9°F

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (21.4°F).

Average pressure in September
Kinnelon, NJ

Average pressure in September - Kinnelon, NJ
  • Average pressure in September: 30.06"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
Kinnelon, NJ

Average wind speed in September - Kinnelon, NJ
  • Average wind speed in September: 5.6mph

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).

Average humidity in September
Kinnelon, NJ

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

The months with the highest relative humidity are February, October and December (80%).
The month with the lowest relative humidity is April (75%).

Average rainfall in September
Kinnelon, NJ

Average rainfall in September - Kinnelon, NJ
  • Average rainfall in September: 0.31"

The wettest month (with the highest rainfall) is July (1.06").
The driest month (with the least rainfall) is September (0.31").

Average rainfall days in September
Kinnelon, NJ

Average rainfall days in September - Kinnelon, NJ
  • Average rainfall days in September: 8.7 days

The month with the highest number of rainy days is July (14.3 days).
The month with the least rainy days is January (4.5 days).

Average snowfall in September
Kinnelon, NJ

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

The month with the highest snowfall is March (0.98").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Kinnelon, NJ

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

The month with the highest number of snowfall days is January (6.1 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
Kinnelon, NJ

Average daylight in September / Average sunshine in September - Kinnelon, NJ
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in September: 8h and 1min

The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).

Average sunshine days in September
Kinnelon, NJ

Average sunshine days in September - Kinnelon, NJ
  • Average sunshine days in September: 18.5 days

The month with the most sunshine days is January (22.3 days).
The month with the least sunshine days is May (13.9 days).

Average UV index in September
Kinnelon, NJ

Average UV index in September - Kinnelon, 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
Kinnelon, NJ

Average cloud cover in September - Kinnelon, NJ
  • Average cloud cover in September: 42

The months with the most cloud cover are February and March (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 36).

Average visibility in September
Kinnelon, NJ

Average visibility in September - Kinnelon, NJ
  • Average visibility in September: 5mi

The months with the highest visibility are January, March, April, August, November and December (6mi).
The months with the lowest visibility are February, May, June, July, September and October (5mi).

Kinnelon, New Jersey, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location