September weather forecast
Slocum, RI

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Weather in September

September, the first month of the autumn in Slocum, is also an agreeable month, with an average temperature ranging between max 72.5°F (22.5°C) and min 58.1°F (14.5°C).

Temperature

September's arrival signals a moderate reduction in the average high-temperature, easing from a moderately hot 79.3°F (26.3°C) in August to a pleasant 72.5°F (22.5°C). During the nights in September, Slocum experiences a consistent average temperature of 58.1°F (14.5°C).

Humidity

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

Rainfall

The month with the least rainfall in Slocum is September, when the rain falls for 10.2 days and typically collects 0.98" (25mm) of precipitation.

Snowfall

June through October are months without snowfall.

Daylight

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

Sunshine

In Slocum, the average sunshine in September is 8.6h.

UV index

In Slocum, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.
Note: In September, the maximum UV index of 4 suggests these recommendations:
Make use of precautions - Suggestions to resist sunburn are communicated. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.

Frequently asked questions

What is the usual temperature for Slocum in September?

During September, Slocum experiences an average high-temperature of 72.5°F (22.5°C) and a low-temperature of 58.1°F (14.5°C).

What is the average humidity in September?

In September, the average relative humidity is 78%.

What is the driest month in Slocum?

September is the month with the least rainfall. Rain falls for 10.2 days and accumulates 0.98" (25mm) of precipitation.

How many days does it rain in September?

In Slocum, during September, the rain falls for 10.2 days and regularly aggregates up to 0.98" (25mm) of precipitation.

When it does not snow?

June through October are months without snowfall.

What is the average length of the day in September?

The average day length in September is 12h and 28min.

When are sunrise and sunset in September?

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 long on average sun shines in September?

In Slocum, the average sunshine duration in September is 8.6h.

What is the UV index reading in September?

In Slocum, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents 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
Slocum, RI

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

The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (35.2°F).

  • Average low temperature in September: 58.1°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 (25°F).

Average pressure in September
Slocum, RI

Average pressure in September - Slocum, 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).

Average wind speed in September
Slocum, RI

Average wind speed in September - Slocum, RI
  • Average wind speed in September: 7.9mph

The windiest month (with the highest average wind speed) is January (10.8mph).
The calmest month (with the lowest average wind speed) is August (7.1mph).

Average humidity in September
Slocum, RI

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

The month with the highest relative humidity is June (81%).
The months with the lowest relative humidity are March and April (73%).

Average rainfall in September
Slocum, RI

Average rainfall in September - Slocum, RI
  • Average rainfall in September: 0.98"

The wettest month (with the highest rainfall) is October (2.52").
The driest month (with the least rainfall) is September (0.98").

Average rainfall days in September
Slocum, RI

Average rainfall days in September - Slocum, RI
  • Average rainfall days in September: 10.2 days

The months with the highest number of rainy days are April and July (14.5 days).
The month with the least rainy days is February (7.7 days).

Average snowfall in September
Slocum, RI

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

The month with the highest snowfall is February (1.97").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in September
Slocum, RI

Average snowfall days in September - Slocum, RI
  • 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).

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

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

The month with the longest days is June (Average daylight: 15h and 6min).
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 42min).

Average sunshine days in September
Slocum, RI

Average sunshine days in September - Slocum, RI
  • Average sunshine days in September: 17.6 days

The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is April (13.7 days).

Average UV index in September
Slocum, RI

Average UV index in September - Slocum, 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).

Average cloud cover in September
Slocum, RI

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

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

Average visibility in September
Slocum, RI

Average visibility in September - Slocum, 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).

Slocum, Rhode Island, USA

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