September weather forecastChepachet, RI
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Chepachet, Rhode Island, with an average temperature varying between 72.7°F (22.6°C) and 54.9°F (12.7°C).Temperature
With the beginning of September, the average high-temperature shows a small decrease, transitioning from a moderately hot 80.1°F (26.7°C) in August to a pleasant 72.7°F (22.6°C). Chepachet records a steady low-temperature average of 54.9°F (12.7°C) during September.Humidity
The months with the highest humidity are February, September and October, with an average relative humidity of 79%.Rainfall
The month with the least rainfall is September, when the rain falls for 10.9 days and typically collects 1.14" (29mm) of precipitation.Snowfall
In Chepachet, Rhode Island, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 6:13 am and sunset at 7:19 pm. On the last day of September, in Chepachet, sunrise is at 6:43 am and sunset at 6:29 pm EDT.
Sunshine
In Chepachet, Rhode Island, the average sunshine in September is 8.1h.UV index
The average daily maximum UV index in September in Chepachet is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 4 in September interprets into the following recommendations:
Act with care - The need to guard against sun damage is communicated. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Chepachet, RI
- Average high temperature in September: 72.7°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (33.1°F).
- Average low temperature in September: 54.9°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (21°F).
Average pressure in September
Chepachet, 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).
Average wind speed in September
Chepachet, RI
- Average wind speed in September: 6.4mph
The windiest months (with the highest average wind speed) are January, February and March (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity in September
Chepachet, RI
- Average humidity in September: 79%
The months with the highest relative humidity are February, September and October (79%).
The month with the lowest relative humidity is April (72%).
Average rainfall in September
Chepachet, RI
- Average rainfall in September: 1.14"
The wettest month (with the highest rainfall) is April (2.4").
The driest month (with the least rainfall) is September (1.14").
Average rainfall days in September
Chepachet, RI
- Average rainfall days in September: 10.9 days
The month with the highest number of rainy days is June (15.5 days).
The month with the least rainy days is February (7 days).
Average snowfall in September
Chepachet, RI
- Average snowfall in September: 0"
The month with the highest snowfall is March (3.19").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Chepachet, RI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Chepachet, RI
- Average daylight in September: 12h and 30min
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 6min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in September
Chepachet, RI
- Average sunshine days in September: 17.2 days
The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is June (13 days).
Average UV index in September
Chepachet, 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
Chepachet, RI
- Average cloud cover in September: 41
The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in September
Chepachet, 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).
