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
In Rolesville, the average high-temperature in September slightly decreases from a hot 87.3°F (30.7°C) in August to a warm 81.5°F (27.5°C). In Rolesville, the nighttime temperature averages to a comfortable 63.5°F (17.5°C) during September.Heat index
The heat index value during September is calculated to be a hot 86°F (30°C). Ongoing activity coupled with exposure often results in weariness and could induce heat cramps.It is emphasized that the heat index's values are meant for shaded zones with mild winds. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
Humidity
In September, the average relative humidity is 76%.Rainfall
In Rolesville, during September, the rain falls for 12.4 days and regularly aggregates up to 2.48" (63mm) of precipitation. Throughout the year, there are 156.2 rainfall days, and 31.65" (804mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall in Rolesville.Daylight
In Rolesville, the average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:46 am and sunset at 7:40 pm. On the last day of September, sunrise is at 7:08 am and sunset at 6:58 pm EDT.
Sunshine
The average sunshine in September in Rolesville is 8.7h.UV index
The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 5 in September converts into the following recommendations:
Ensure safety - Imperative it is to shield skin and eyes from damage. Around midday, solar radiation is most harmful; hence, exposure should be limited. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Rolesville in September?
What is the average humidity in September in Rolesville?
How much does it rain in Rolesville in September?
When it does not snow in Rolesville?
What is the average length of the day in September in Rolesville?
What time are sunrise and sunset in September in Rolesville?
How long on average sun shines in September in Rolesville?
How high is the UV index in September in Rolesville?
Average temperature in September
Rolesville, NC
- Average high temperature in September: 81.5°F
The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is January (47.7°F).
- Average low temperature in September: 63.5°F
The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (32.2°F).
Average pressure in September
Rolesville, NC
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in September
Rolesville, NC
- Average wind speed in September: 5.8mph
The windiest month (with the highest average wind speed) is April (7.9mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in September
Rolesville, NC
- Average humidity in September: 76%
The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are April, June and July (73%).
Average rainfall in September
Rolesville, NC
- Average rainfall in September: 2.48"
The wettest month (with the highest rainfall) is August (3.54").
The driest month (with the least rainfall) is October (2.13").
Average rainfall days in September
Rolesville, NC
- Average rainfall days in September: 12.4 days
The months with the highest number of rainy days are May and July (17.2 days).
The month with the least rainy days is November (9 days).
Average snowfall in September
Rolesville, NC
- Average snowfall in September: 0"
The months with the highest snowfall are January and February (1.54").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Rolesville, NC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Rolesville, NC
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in September
Rolesville, NC
- Average sunshine days in September: 15.7 days
The month with the most sunshine days is November (19.9 days).
The month with the least sunshine days is May (11.3 days).
Average UV index in September
Rolesville, NC
- Average UV index in September: 5
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Rolesville, NC
- Average cloud cover in September: 38
The month with the most cloud cover is February (Cloud cover 45).
The months with the least cloud cover are June and July (Cloud cover 33).
Average visibility in September
Rolesville, NC
- 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).
Rolesville, North Carolina, USA
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