September weather forecast
Hornerstown, NJ

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Weather in September

September, the first month of the autumn in Hornerstown, is also a moderately hot month, with an average temperature varying between 59.9°F (15.5°C) and 75.9°F (24.4°C).

Temperature

A mild shift in the average high-temperature occurs in September, reducing from a moderately hot 82.6°F (28.1°C) in August to a still warm 75.9°F (24.4°C). The temperature in Hornerstown dips to an average of 59.9°F (15.5°C) during September nights.

Humidity

In Hornerstown, the average relative humidity in September is 77%.

Rainfall

The month with the least rainfall in Hornerstown, New Jersey, is September, when the rain falls for 12.7 days and typically collects 1.65" (42mm) of precipitation.

Snowfall

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

Daylight

In September, the average length of the day in Hornerstown is 12h and 26min.
On the first day of the month, sunrise is at 6:26 am and sunset at 7:29 pm. On the last day of September, sunrise is at 6:54 am and sunset at 6:41 pm EDT.

Sunshine

In Hornerstown, the average sunshine in September is 8.8h.

UV index

The average daily maximum UV index in September in Hornerstown is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: An average UV index of 4 in September transforms into this advice:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
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Frequently asked questions

What is the temperature in September in Hornerstown?

Hornerstown in September has an average high-temperature of 75.9°F (24.4°C) and an average low-temperature of 59.9°F (15.5°C). In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is calculated to be 89.6°F (32°C).

What is the average humidity in September in Hornerstown?

In September, the average relative humidity in Hornerstown, New Jersey, is 77%.

What is the driest month in Hornerstown?

The month with the least rainfall in Hornerstown, New Jersey, is September, when the rain falls for 12.7 days and typically collects 1.65" (42mm) of precipitation.

How much does it rain in Hornerstown in September?

In September, the rain falls for 12.7 days. Throughout September, 1.65" (42mm) of precipitation is accumulated.

When it does not snow in Hornerstown?

In Hornerstown, New Jersey, snow does not fall in June through October.

What is the average length of the day in September in Hornerstown?

In Hornerstown, New Jersey, the average day length in September is 12h and 26min.

When is the sunrise / sunset in September in Hornerstown?

In September, on the first day of the month, sunrise is at 6:26 am and sunset at 7:29 pm. On the last day of the month, in Hornerstown, sunrise is at 6:54 am and sunset at 6:41 pm EDT.

How many hours of sunshine does Hornerstown have in September?

The average sunshine duration in September in Hornerstown is 8.8h.

What is the UV index reading in September in Hornerstown?

The average daily maximum UV index in September in Hornerstown, New Jersey, is 4. A UV Index of 3 to 5 symbolizes a moderate vulnerability from exposure to Sun's UV rays.
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
Hornerstown, NJ

Average temperature in September - Hornerstown, NJ
  • Average high temperature in September: 75.9°F

The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (37.4°F).

  • Average low temperature in September: 59.9°F

The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (25°F).

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Average pressure in September
Hornerstown, NJ

Average pressure in September - Hornerstown, 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).

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Average wind speed in September
Hornerstown, NJ

Average wind speed in September - Hornerstown, NJ
  • Average wind speed in September: 6.1mph

The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

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Average humidity in September
Hornerstown, NJ

Average humidity in September - Hornerstown, NJ
  • Average humidity in September: 77%

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

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Average rainfall in September
Hornerstown, NJ

Average rainfall in September - Hornerstown, NJ
  • Average rainfall in September: 1.65"

The wettest month (with the highest rainfall) is July (3.39").
The driest month (with the least rainfall) is September (1.65").

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Average rainfall days in September
Hornerstown, NJ

Average rainfall days in September - Hornerstown, NJ
  • Average rainfall days in September: 12.7 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (8.3 days).

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Average snowfall in September
Hornerstown, NJ

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

The month with the highest snowfall is March (3.11").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in September
Hornerstown, NJ

Average snowfall days in September - Hornerstown, 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).

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

Average daylight in September / Average sunshine in September - Hornerstown, 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 30min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

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Average sunshine days in September
Hornerstown, NJ

Average sunshine days in September - Hornerstown, NJ
  • Average sunshine days in September: 14.7 days

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (11 days).

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Average UV index in September
Hornerstown, NJ

Average UV index in September - Hornerstown, 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, November and December (UV index 2).

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Average cloud cover in September
Hornerstown, NJ

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

The months with the most cloud cover are February, March and December (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 32).

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Average visibility in September
Hornerstown, NJ

Average visibility in September - Hornerstown, 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).

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Hornerstown, New Jersey, USA

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