September weather forecast
Rio Grande, NJ

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Weather in September

The first month of the autumn, September, is still a warm month in Rio Grande, New Jersey, with an average temperature varying between 67.8°F (19.9°C) and 73.4°F (23°C).

Temperature

Rio Grande sees the arrival of September with an average high-temperature of a still warm 73.4°F (23°C), indicating a subtle variation from August. An average low-temperature of 67.8°F (19.9°C) characterizes Rio Grande's September nights.

Humidity

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

Rainfall

In Rio Grande, in September, during 12.7 rainfall days, 2.6" (66mm) of precipitation is typically accumulated. Throughout the year, there are 158 rainfall days, and 35.47" (901mm) of precipitation is accumulated.

Snowfall

April through November are months without snowfall in Rio Grande.

Daylight

In Rio Grande, the average length of the day in September is 12h and 26min.
On the first day of September, sunrise is at 6:29 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 6:43 pm EDT.

Sunshine

The average sunshine in September in Rio Grande is 9.4h.

UV index

The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: A daily high UV index of 5 in September leads to these guidelines:
Exercise prevention - Precautions against solar damage are endorsed. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
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Frequently asked questions

What is the average September temperature in Rio Grande?

In Rio Grande, 73.4°F (23°C) is the average high-temperature and 67.8°F (19.9°C) is the average low-temperature during September.

What is the average humidity in September in Rio Grande?

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

How much does it rain in Rio Grande in September?

In Rio Grande, New Jersey, in September, during 12.7 rainfall days, 2.6" (66mm) of precipitation is typically accumulated.

When it does not snow in Rio Grande?

April through November are months without snowfall in Rio Grande, New Jersey.

What is the average length of the day in September in Rio Grande?

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

When are sunrise and sunset in September in Rio Grande?

In September, on the first day of the month, sunrise is at 6:29 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 6:43 pm EDT.

How long on average sun shines in September in Rio Grande?

In Rio Grande, the average sunshine duration in September is 9.4h.

What is the UV index reading in September in Rio Grande?

In Rio Grande, New Jersey, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat 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
Rio Grande, NJ

Average temperature in September - Rio Grande, NJ
  • Average high temperature in September: 73.4°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (40.5°F).

  • Average low temperature in September: 67.8°F

The month with the highest average low temperature is July (73.4°F).
The coldest month (with the lowest average low temperature) is January (32.2°F).

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Average pressure in September
Rio Grande, NJ

Average pressure in September - Rio Grande, NJ
  • Average pressure in September: 30.04"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in September
Rio Grande, NJ

Average wind speed in September - Rio Grande, NJ
  • Average wind speed in September: 10.9mph

The windiest month (with the highest average wind speed) is January (13.5mph).
The calmest month (with the lowest average wind speed) is July (9.2mph).

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Average humidity in September
Rio Grande, NJ

Average humidity in September - Rio Grande, NJ
  • Average humidity in September: 77%

The month with the highest relative humidity is May (82%).
The month with the lowest relative humidity is November (73%).

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Average rainfall in September
Rio Grande, NJ

Average rainfall in September - Rio Grande, NJ
  • Average rainfall in September: 2.6"

The wettest month (with the highest rainfall) is August (3.86").
The driest month (with the least rainfall) is January (2.13").

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Average rainfall days in September
Rio Grande, NJ

Average rainfall days in September - Rio Grande, NJ
  • Average rainfall days in September: 12.7 days

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (8.7 days).

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Average snowfall in September
Rio Grande, NJ

Average snowfall in September - Rio Grande, NJ
  • Average snowfall in September: 0"

The month with the highest snowfall is December (1.06").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in September
Rio Grande, NJ

Average snowfall days in September - Rio Grande, NJ
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
Rio Grande, NJ

Average daylight in September / Average sunshine in September - Rio Grande, NJ
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in September: 9h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

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Average sunshine days in September
Rio Grande, NJ

Average sunshine days in September - Rio Grande, NJ
  • Average sunshine days in September: 15.2 days

The month with the most sunshine days is November (18.9 days).
The months with the least sunshine days are May and June (12.5 days).

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Average UV index in September
Rio Grande, NJ

Average UV index in September - Rio Grande, 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 and December (UV index 2).

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Average cloud cover in September
Rio Grande, NJ

Average cloud cover in September - Rio Grande, NJ
  • Average cloud cover in September: 31

The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 26).

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Average visibility in September
Rio Grande, NJ

Average visibility in September - Rio Grande, 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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Rio Grande, New Jersey, USA

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