September weather forecast
Holland, NJ

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Weather in September

September, the first month of the autumn in Holland, is also a moderately hot month, with temperature in the range of an average high of 76.3°F (24.6°C) and an average low of 59.4°F (15.2°C).

Temperature

Holland's weather in September involves a mild decrease in the average high-temperature, moving down slightly from August's moderately hot 83.3°F (28.5°C) to a still warm 76.3°F (24.6°C). During September, Holland consistently records a temperature low averaging a refreshing 59.4°F (15.2°C).

Humidity

In September, the average relative humidity is 75%.

Rainfall

The month with the least rainfall is September, when the rain falls for 12.2 days and typically collects 1.89" (48mm) of precipitation.

Snowfall

June through September are months without snowfall in Holland, New Jersey.

Daylight

In Holland, the average length of the day in September is 12h and 27min.
On the first day of the month, sunrise is at 6:28 am and sunset at 7:32 pm. On the last day of September, sunrise is at 6:56 am and sunset at 6:43 pm EDT.

Sunshine

In September, the average sunshine is 8.7h.

UV index

The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index, 4 in September, converts into the following recommendations:
Undertake precautions - Guarding against sun damage is counselled. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Updated: Aug 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September?

In Holland, in September, the average high-temperature is 76.3°F (24.6°C), and the average low-temperature is 59.4°F (15.2°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in August is calculated to be 89.6°F (32°C).

What is the average humidity in September in Holland?

In September, the average relative humidity is 75%.

What is the driest month?

The month with the least rainfall in Holland is September, when the rain falls for 12.2 days and typically collects 1.89" (48mm) of precipitation.

How many days does it rain in September?

In Holland, in September, it is raining for 12.2 days, with typically 1.89" (48mm) of accumulated precipitation.

When it does not snow?

June through September are months without snowfall in Holland.

Does it snow in September?

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

How many hours of daylight does Holland have in September?

The average day length in September is 12h and 27min.

What time are sunrise and sunset in September?

On the first day of September in Holland, New Jersey, sunrise is at 6:28 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 6:43 pm EDT.

How long on average sun shines in September?

The average sunshine duration in September is 8.7h.

How high is the UV index in September?

In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium hazard to health 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
Holland, NJ

Average temperature in September - Holland, NJ
  • Average high temperature in September: 76.3°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (36.9°F).

  • Average low temperature in September: 59.4°F

The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

Average pressure in September
Holland, NJ

Average pressure in September - Holland, NJ
  • Average pressure in September: 30.05"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in September
Holland, NJ

Average wind speed in September - Holland, NJ
  • Average wind speed in September: 5.8mph

The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

Average humidity in September
Holland, NJ

Average humidity in September - Holland, NJ
  • Average humidity in September: 75%

The months with the highest relative humidity are February and October (78%).
The months with the lowest relative humidity are April, July and August (72%).

Average rainfall in September
Holland, NJ

Average rainfall in September - Holland, NJ
  • Average rainfall in September: 1.89"

The wettest month (with the highest rainfall) is December (3.31").
The driest month (with the least rainfall) is September (1.89").

Average rainfall days in September
Holland, NJ

Average rainfall days in September - Holland, NJ
  • Average rainfall days in September: 12.2 days

The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is November (8.5 days).

Average snowfall in September
Holland, NJ

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

The month with the highest snowfall is March (3.78").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Holland, NJ

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

The month with the highest number of snowfall days is January (7.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Holland, NJ

Average daylight in September / Average sunshine in September - Holland, 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 4min

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
Holland, NJ

Average sunshine days in September - Holland, NJ
  • Average sunshine days in September: 15.5 days

The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is June (11.4 days).

Average UV index in September
Holland, NJ

Average UV index in September - Holland, NJ
  • Average UV index in September: 4

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
Holland, NJ

Average cloud cover in September - Holland, NJ
  • Average cloud cover in September: 38

The months with the most cloud cover are February and December (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in September
Holland, NJ

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

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

Holland, New Jersey, USA

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