September weather forecast
Arctic, RI

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Weather in September

The first month of the autumn, September, is still a pleasant month in Arctic, Rhode Island, with temperature in the range of an average low of 57.7°F (14.3°C) and an average high of 72.5°F (22.5°C).

Temperature

Start of September brings a slight shift in the average high-temperature, dipping a bit from August's moderately hot 79.7°F (26.5°C) to a pleasant 72.5°F (22.5°C). Arctic cools down to an average low-temperature of 57.7°F (14.3°C) throughout the month of September.

Humidity

The average relative humidity in September in Arctic is 78%.

Rainfall

The month with the least rainfall is September, when the rain falls for 10.4 days and typically collects 0.91" (23mm) of precipitation.

Snowfall

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

Daylight

In Arctic, Rhode Island, the average length of the day in September is 12h and 28min.
On the first day of September, sunrise is at 6:12 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 6:42 am and sunset at 6:29 pm EDT.

Sunshine

The average sunshine in September is 8.6h.

UV index

In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.
Note: In September, the maximum UV index of 4 transforms into these recommendations:
Adopt protective measures - It is advised to guard against sun damage. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Always opt for UVA and UVB-resistant sunglasses on radiant days.
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Frequently asked questions

What is the temperature in September in Arctic?

The high-temperature, in September, in Arctic, records 72.5°F (22.5°C), while the low-temperature is 57.7°F (14.3°C). In July, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is calculated to be 86°F (30°C).

What is the average humidity in September in Arctic?

In September, the average relative humidity in Arctic, Rhode Island, is 78%.

What is the driest month in Arctic?

September is the month with the least rainfall in Arctic. Rain falls for 10.4 days and accumulates 0.91" (23mm) of precipitation.

How many days does it rain in September in Arctic?

In Arctic, Rhode Island, in September, during 10.4 rainfall days, 0.91" (23mm) of precipitation is typically accumulated.

When it does not snow in Arctic?

June through October are months without snowfall.

How many hours of daylight does Arctic have in September?

In Arctic, the average day length in September is 12h and 28min.

What time are sunrise and sunset in September in Arctic?

On the first day of September, sunrise is at 6:12 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 6:42 am and sunset at 6:29 pm EDT.

How many hours of sunshine does Arctic have in September?

The average sunshine duration in September in Arctic, Rhode Island, is 8.6h.

What is the UV index reading in September in Arctic?

In Arctic, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes 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
Arctic, RI

Average temperature in September - Arctic, RI
  • Average high temperature in September: 72.5°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (35.2°F).

  • Average low temperature in September: 57.7°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (24.1°F).

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Average pressure in September
Arctic, RI

Average pressure in September - Arctic, RI
  • Average pressure in September: 30.05"Hg

The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in September
Arctic, RI

Average wind speed in September - Arctic, RI
  • Average wind speed in September: 7.5mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).

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Average humidity in September
Arctic, RI

Average humidity in September - Arctic, RI
  • Average humidity in September: 78%

The month with the highest relative humidity is June (79%).
The month with the lowest relative humidity is April (72%).

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Average rainfall in September
Arctic, RI

Average rainfall in September - Arctic, RI
  • Average rainfall in September: 0.91"

The wettest month (with the highest rainfall) is April (2.17").
The driest month (with the least rainfall) is September (0.91").

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Average rainfall days in September
Arctic, RI

Average rainfall days in September - Arctic, RI
  • Average rainfall days in September: 10.4 days

The month with the highest number of rainy days is July (15.2 days).
The month with the least rainy days is January (7.3 days).

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Average snowfall in September
Arctic, RI

Average snowfall in September - Arctic, RI
  • Average snowfall in September: 0"

The month with the highest snowfall is March (1.89").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in September
Arctic, RI

Average snowfall days in September - Arctic, RI
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (6 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
Arctic, RI

Average daylight in September / Average sunshine in September - Arctic, RI
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is August (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
Arctic, RI

Average sunshine days in September - Arctic, RI
  • Average sunshine days in September: 16.7 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is June (12.9 days).

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Average UV index in September
Arctic, RI

Average UV index in September - Arctic, RI
  • 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).

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Average cloud cover in September
Arctic, RI

Average cloud cover in September - Arctic, RI
  • Average cloud cover in September: 34

The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 30).

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Average visibility in September
Arctic, RI

Average visibility in September - Arctic, RI
  • 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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Arctic, Rhode Island, USA

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