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 arrival of September correlates with a minor temperature reduction, down from August's tropical 87.6°F (30.9°C) to a warm 81.7°F (27.6°C). Rockwell's temperature drops to an average low of 62.6°F (17°C) during the nights of September.Heat index
The average heat index in September is calculated to be a tropical 86°F (30°C). A sense of exhaustion might occur with extended exposure and activity, potentially causing heat cramps.Understanding the heat index involves considering values for shaded locales with light wind. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', measures the perceived warmth when incorporating the humidity present in the air. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
Humidity
The average relative humidity in September in Rockwell, North Carolina, is 74%.Rainfall
In September, the rain falls for 11.9 days. Throughout September, 2.01" (51mm) of precipitation is accumulated. In Rockwell, North Carolina, during the entire year, the rain falls for 152.1 days and collects up to 30.04" (763mm) of precipitation.Snowfall
In Rockwell, snow does not fall in April through November.Daylight
In September, the average length of the day in Rockwell, North Carolina, is 12h and 23min.On the first day of September, sunrise is at 6:54 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 7:06 pm EDT.
Sunshine
In September, the average sunshine in Rockwell, North Carolina, is 8.7h.UV index
In Rockwell, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.Note: A maximum high UV index of 5 in September translates into the following recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Frequently asked questions
What are September temperatures in Rockwell?
What is the average humidity in September in Rockwell?
How many days does it rain in September in Rockwell?
When it does not snow in Rockwell?
What is the average length of the day in September in Rockwell?
When are sunrise and sunset in September in Rockwell?
How long on average sun shines in September in Rockwell?
What is the UV index reading in September in Rockwell?
Average temperature in September
Rockwell, NC
- Average high temperature in September: 81.7°F
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (46.9°F).
- Average low temperature in September: 62.6°F
The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).
Average pressure in September
Rockwell, NC
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in September
Rockwell, NC
- Average wind speed in September: 5.1mph
The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in September
Rockwell, NC
- Average humidity in September: 74%
The months with the highest relative humidity are May and December (76%).
The month with the lowest relative humidity is July (70%).
Average rainfall in September
Rockwell, NC
- Average rainfall in September: 2.01"
The wettest month (with the highest rainfall) is April (3.19").
The driest month (with the least rainfall) is October (1.89").
Average rainfall days in September
Rockwell, NC
- Average rainfall days in September: 11.9 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is November (8.6 days).
Average snowfall in September
Rockwell, NC
- Average snowfall in September: 0"
The month with the highest snowfall is December (1.93").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Rockwell, NC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.2 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Rockwell, NC
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 30min).
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 48min).
The months with the least sunshine are January and December (Average sunshine: 5h and 30min).
Average sunshine days in September
Rockwell, NC
- Average sunshine days in September: 16.1 days
The month with the most sunshine days is October (20.7 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in September
Rockwell, NC
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in September
Rockwell, NC
- Average cloud cover in September: 35
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in September
Rockwell, 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).
Rockwell, North Carolina, USA
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