Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The average high-temperature in Cumberland slightly decreases in September, shifting from a warm 80.4°F (26.9°C) in August to a pleasant 72.9°F (22.7°C). An average low-temperature of 55.9°F (13.3°C) is observed during the September nights.Humidity
February, June, September and October, with an average relative humidity of 78%, are the most humid months.Rainfall
September is the month with the least rainfall. Rain falls for 10.3 days and accumulates 1.06" (27mm) of precipitation.Snowfall
In Cumberland, snow does not fall in June through September.Daylight
In September, the average length of the day 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 6:28 pm EDT.
Sunshine
The average sunshine in September is 8.3h.UV index
In Cumberland, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the average person.Note: The daily high UV index of 4 in September translates into this advice:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Cumberland in September?
What is the most humid month?
What is the average humidity in September?
What is the driest month?
How much does it rain in Cumberland in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Cumberland have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Cumberland have in September?
What is the UV index intensity in September?
Average temperature in September
Cumberland, RI
- Average high temperature in September: 72.9°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.8°F).
- Average low temperature in September: 55.9°F
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).
Average pressure in September
Cumberland, 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
Cumberland, RI
- Average wind speed in September: 6.7mph
The windiest months (with the highest average wind speed) are February and March (9.4mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in September
Cumberland, RI
- Average humidity in September: 78%
The months with the highest relative humidity are February, June, September and October (78%).
The month with the lowest relative humidity is April (71%).
Average rainfall in September
Cumberland, RI
- Average rainfall in September: 1.06"
The wettest month (with the highest rainfall) is April (2.52").
The driest month (with the least rainfall) is September (1.06").
Average rainfall days in September
Cumberland, RI
- Average rainfall days in September: 10.3 days
The month with the highest number of rainy days is June (15.1 days).
The month with the least rainy days is January (7.1 days).
Average snowfall in September
Cumberland, RI
- Average snowfall in September: 0"
The month with the highest snowfall is March (3.03").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Cumberland, RI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is March (6.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Cumberland, 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 2min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in September
Cumberland, RI
- Average sunshine days in September: 17.8 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is April (13.6 days).
Average UV index in September
Cumberland, 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
Cumberland, RI
- Average cloud cover in September: 39
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Cumberland, RI
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, May, October, November and December (6mi).
The months with the lowest visibility are June, July, August and September (5mi).
Cumberland, Rhode Island, USA
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