September weather forecastShannock, RI
September
Weather in September
September, the first month of the autumn in Shannock, is still a pleasant month, with temperature in the range of an average low of 59.9°F (15.5°C) and an average high of 71.2°F (21.8°C).Temperature
The start of September involves a subtle temperature drop, shifting from a moderately hot 77.5°F (25.3°C) in August to an agreeable 71.2°F (21.8°C). Shannock experiences a consistent average temperature of 59.9°F (15.5°C) throughout the nights in September.Humidity
In Shannock, the average relative humidity in September is 78%.Rainfall
The month with the least rainfall is September, when the rain falls for 11.5 days and typically collects 1.5" (38mm) of precipitation.Snowfall
April through November are months without snowfall.Daylight
In September, the average length of the day is 12h and 28min.On the first day of September, sunrise is at 6:13 am and sunset at 7:19 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 6:29 pm EDT.
Sunshine
The average sunshine in September is 8.8h.UV index
The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The average daily UV index of 4 in September transforms into the following instructions:
Take precautions - Protection against skin and eye damage is obliged. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Shannock, RI
- Average high temperature in September: 71.2°F
The warmest months (with the highest average high temperature) are July and August (77.5°F).
The month with the lowest average high temperature is January (36.7°F).
- Average low temperature in September: 59.9°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).
Average pressure in September
Shannock, 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
Shannock, RI
- Average wind speed in September: 9.4mph
The windiest month (with the highest average wind speed) is January (12.6mph).
The calmest month (with the lowest average wind speed) is August (8.4mph).
Average humidity in September
Shannock, RI
- Average humidity in September: 78%
The month with the highest relative humidity is June (82%).
The months with the lowest relative humidity are March, April and November (74%).
Average rainfall in September
Shannock, RI
- Average rainfall in September: 1.5"
The wettest month (with the highest rainfall) is December (3.35").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days in September
Shannock, RI
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is July (16.5 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in September
Shannock, RI
- Average snowfall in September: 0"
The month with the highest snowfall is March (2.13").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Shannock, 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 May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Shannock, RI
- Average daylight in September: 12h and 30min
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 48min
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).
Average sunshine days in September
Shannock, RI
- Average sunshine days in September: 16.2 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is July (12.2 days).
Average UV index in September
Shannock, 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
Shannock, RI
- Average cloud cover in September: 33
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in September
Shannock, 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).
