September weather forecast
Woonsocket, RI

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Weather in September

September brings a subtle ushering of Autumn into Woonsocket. While the warm temperature from August carries over, a decrease in daylight hours is noticeable. This season typically sees the lowest rainfall at 1.3" (33mm), characterizing it as the driest month. As the month progresses, one can notice a shift from the robust summer heat towards a more moderate climate. September in Woonsocket is a blend of lingering summer warmth and the promise of crisper Autumn days to follow.

Temperature

The transition into September in Woonsocket subtly indicates a reduction in the average high-temperature, down to a pleasant 73°F (22.8°C) from August's moderately hot 80.8°F (27.1°C). During September, Woonsocket's temperature falls to a steady low-temperature average of 55.2°F (12.9°C).

Humidity

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

Rainfall

September is the month with the least rainfall in Woonsocket, Rhode Island. Rain falls for 11.6 days and accumulates 1.3" (33mm) of precipitation.

Snowfall

In Woonsocket, Rhode Island, snow does not fall in June through September.

Daylight

In September, the average length of the day in Woonsocket is 12h and 28min.
On the first day of September, sunrise is at 6:12 am and sunset at 7:19 pm. On the last day of the month, sunrise is at 6:42 am and sunset at 6:28 pm EDT.

Sunshine

In Woonsocket, Rhode Island, the average sunshine in September is 8h.

UV index

The average daily maximum UV index in September in Woonsocket is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.
Note: In September, the maximum UV index of 4 suggests this advice:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
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Frequently asked questions

What is the usual temperature for Woonsocket in September?

The high-temperature, in September, in Woonsocket, is 73°F (22.8°C), while the low-temperature averages to 55.2°F (12.9°C). In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 86°F (30°C).

What is the average humidity in September in Woonsocket?

In September, the average relative humidity is 78%.

What is the driest month in Woonsocket?

September is the month with the least rainfall in Woonsocket, Rhode Island. Rain falls for 11.6 days and accumulates 1.3" (33mm) of precipitation.

How much does it rain in Woonsocket in September?

In September, in Woonsocket, the rain falls for 11.6 days. Throughout September, 1.3" (33mm) of precipitation is accumulated.

When it does not snow in Woonsocket?

June through September are months without snowfall in Woonsocket, Rhode Island.

Does it snow in Woonsocket in September?

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

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

In Woonsocket, Rhode Island, the average day length in September is 12h and 28min.

When are sunrise and sunset in September in Woonsocket?

In September, on the first day of the month, sunrise is at 6:12 am and sunset at 7:19 pm. On the last day of the month, in Woonsocket, sunrise is at 6:42 am and sunset at 6:28 pm EDT.

How long on average sun shines in September in Woonsocket?

In September, the average sunshine duration in Woonsocket is 8h.

What is the UV index intensity in September in Woonsocket?

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

Average temperature in September - Woonsocket, RI
  • Average high temperature in September: 73°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in September: 55.2°F

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (21.4°F).

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Average pressure in September
Woonsocket, RI

Average pressure in September - Woonsocket, RI
  • Average pressure in September: 30.06"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
Woonsocket, RI

Average wind speed in September - Woonsocket, RI
  • Average wind speed in September: 6.5mph

The windiest month (with the highest average wind speed) is March (9.2mph).
The calmest month (with the lowest average wind speed) is August (6mph).

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Average humidity in September
Woonsocket, RI

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

The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is April (71%).

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Average rainfall in September
Woonsocket, RI

Average rainfall in September - Woonsocket, RI
  • Average rainfall in September: 1.3"

The wettest month (with the highest rainfall) is April (2.83").
The driest month (with the least rainfall) is September (1.3").

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Average rainfall days in September
Woonsocket, RI

Average rainfall days in September - Woonsocket, RI
  • Average rainfall days in September: 11.6 days

The month with the highest number of rainy days is June (15.3 days).
The months with the least rainy days are January and February (7.9 days).

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Average snowfall in September
Woonsocket, RI

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

The month with the highest snowfall is March (3.66").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Woonsocket, RI

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

The month with the highest number of snowfall days is January (7.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Woonsocket, RI

Average daylight in September / Average sunshine in September - Woonsocket, 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 0min

The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).

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Average sunshine days in September
Woonsocket, RI

Average sunshine days in September - Woonsocket, RI
  • Average sunshine days in September: 16.5 days

The month with the most sunshine days is November (18 days).
The month with the least sunshine days is June (12.5 days).

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Average UV index in September
Woonsocket, RI

Average UV index in September - Woonsocket, 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
Woonsocket, RI

Average cloud cover in September - Woonsocket, RI
  • Average cloud cover in September: 42

The months with the most cloud cover are February and March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 37).

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Average visibility in September
Woonsocket, RI

Average visibility in September - Woonsocket, RI
  • Average visibility in September: 5mi

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

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Woonsocket, Rhode Island, USA

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