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
Transitioning from August to September involves a subtle drop in average high-temperatures, descending from a tropical 88°F (31.1°C) to a warm 82°F (27.8°C). Spindale experiences a drastic reduction from day temperatures to an average low of 60.4°F (15.8°C) in September.Heat index
The heat index in September is estimated at a tropical 87.8°F (31°C). If one continues to be active during enduring exposure, it could result in fatigue and heat cramps.Evaluating the heat index requires understanding its values in the shade and with gentle winds. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
Humidity
In September, the average relative humidity is 73%.Rainfall
September is the month with the least rainfall. Rain falls for 11.1 days and accumulates 0.98" (25mm) of precipitation.Snowfall
In Spindale, snow does not fall in April through October.Daylight
The average length of the day in September is 12h and 23min.On the first day of September in Spindale, sunrise is at 7:00 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:12 pm EDT.
Sunshine
The average sunshine in September is 8.5h.UV index
The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index, 5 during September, leads to the following recommendations:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. To protect against the Sun's most potent rays, avoid direct exposure around midday. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September?
What is the driest month?
How many days does it rain in September in Spindale?
When it does not snow?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Spindale, NC
- Average high temperature in September: 82°F
The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (47.3°F).
- Average low temperature in September: 60.4°F
The month with the highest average low temperature is July (67.3°F).
The coldest month (with the lowest average low temperature) is January (31.1°F).
Average pressure in September
Spindale, 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 (29.99"Hg).
Average wind speed in September
Spindale, NC
- Average wind speed in September: 4.3mph
The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).
Average humidity in September
Spindale, NC
- Average humidity in September: 73%
The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is July (69%).
Average rainfall in September
Spindale, NC
- Average rainfall in September: 0.98"
The wettest month (with the highest rainfall) is August (1.93").
The driest month (with the least rainfall) is September (0.98").
Average rainfall days in September
Spindale, NC
- Average rainfall days in September: 11.1 days
The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is October (8.1 days).
Average snowfall in September
Spindale, NC
- Average snowfall in September: 0"
The month with the highest snowfall is December (1.18").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Spindale, NC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.3 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
Spindale, 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 3min
The months with the most sunshine are June and July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in September
Spindale, NC
- Average sunshine days in September: 16.9 days
The month with the most sunshine days is October (22 days).
The month with the least sunshine days is July (12.7 days).
Average UV index in September
Spindale, 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 and December (UV index 2).
Average cloud cover in September
Spindale, NC
- Average cloud cover in September: 31
The months with the most cloud cover are February, March and December (Cloud cover 40).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility in September
Spindale, 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).
Spindale, North Carolina, USA
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