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
September's onset brings a negligible change in high-temperatures, falling from a warm 79.7°F (26.5°C) in August to a pleasant 72.7°F (22.6°C). The nighttime temperature in Cranston dips to a moderate 57.2°F (14°C) on average during September.Humidity
In Cranston, the average relative humidity in September is 78%.Rainfall
The month with the least rainfall in Cranston is September, when the rain falls for 4 days and typically collects 0.12" (3mm) of precipitation.Snowfall
In Cranston, snow does not fall in April, June through October.Daylight
In Cranston, 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, in Cranston, sunrise is at 6:42 am and sunset at 6:28 pm EDT.
Sunshine
In Cranston, the average sunshine in September is 8.7h.UV index
In September, the average daily maximum UV index in Cranston is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: In September, the maximum UV index of 4 suggests these recommendations:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Cranston?
What is the average humidity in September in Cranston?
What is the driest month in Cranston?
How many days does it rain in September in Cranston?
When it does not snow in Cranston?
What is the average length of the day in September in Cranston?
When is the sunrise / sunset in September in Cranston?
How long on average sun shines in September in Cranston?
How high is the UV index in September in Cranston?
Average temperature in September
Cranston, RI
- Average high temperature in September: 72.7°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (35.1°F).
- Average low temperature in September: 57.2°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (23.7°F).
Average pressure in September
Cranston, 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
Cranston, RI
- Average wind speed in September: 7.3mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in September
Cranston, RI
- Average humidity in September: 78%
The month with the highest relative humidity is June (79%).
The month with the lowest relative humidity is April (72%).
Average rainfall in September
Cranston, RI
- Average rainfall in September: 0.12"
The wettest month (with the highest rainfall) is December (0.59").
The driest month (with the least rainfall) is September (0.12").
Average rainfall days in September
Cranston, RI
- Average rainfall days in September: 4 days
The month with the highest number of rainy days is July (6.6 days).
The month with the least rainy days is January (3 days).
Average snowfall in September
Cranston, RI
- Average snowfall in September: 0"
The month with the highest snowfall is December (0.31").
The months with the least snowfall are April, June, July, August, September and October (0").
Average snowfall days in September
Cranston, RI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (3.5 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
Cranston, 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 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 48min).
Average sunshine days in September
Cranston, RI
- Average sunshine days in September: 24.7 days
The month with the most sunshine days is January (25.9 days).
The month with the least sunshine days is July (21.2 days).
Average UV index in September
Cranston, 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
Cranston, RI
- Average cloud cover in September: 34
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Cranston, 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).
Cranston, Rhode Island, USA
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