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 indicates a minor shift in the average high-temperature, from August's tropical 88.2°F (31.2°C) to a warm 81.9°F (27.7°C). Siler City experiences a consistent average temperature of 63°F (17.2°C) throughout the nights in September.Heat index
In September, the average heat index is computed to be a hot 87.8°F (31°C). Staying active during long-term exposure might result in a state of exhaustion and cause heat cramps.Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a value derived by merging air temperature with the humidity to convey how the climate feels. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. 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 especially crucial for babies and toddlers. 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
In Siler City, the average relative humidity in September is 76%.Rainfall
In Siler City, North Carolina, in September, during 14 rainfall days, 2.4" (61mm) of precipitation is typically accumulated. Throughout the year, there are 156.8 rainfall days, and 30.51" (775mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall in Siler City.Daylight
In September, the average length of the day in Siler City is 12h and 23min.On the first day of September in Siler City, sunrise is at 6:50 am and sunset at 7:44 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 7:02 pm EDT.
Sunshine
In September, the average sunshine in Siler City is 8.9h.UV index
In Siler City, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: In September, a daily maximum UV index of 5 leads to the following instructions:
Ensure safety - Recommendations to avert sunburn are presented. Minimize direct exposure to the Sun during midday when its radiation is at its peak. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Frequently asked questions
What are the temperatures in Siler City in September?
What is the average humidity in September in Siler City?
How many days does it rain in September in Siler City?
When it does not snow in Siler City?
What is the average length of the day in September in Siler City?
When is the sunrise / sunset in September in Siler City?
How many hours of sunshine does Siler City have in September?
What is the UV index intensity in September in Siler City?
Average temperature in September
Siler City, NC
- Average high temperature in September: 81.9°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 (47.8°F).
- Average low temperature in September: 63°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (31.8°F).
Average pressure in September
Siler City, 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 (29.97"Hg).
Average wind speed in September
Siler City, NC
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in September
Siler City, NC
- Average humidity in September: 76%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (71%).
Average rainfall in September
Siler City, NC
- Average rainfall in September: 2.4"
The wettest month (with the highest rainfall) is May (3.43").
The driest month (with the least rainfall) is October (1.85").
Average rainfall days in September
Siler City, NC
- Average rainfall days in September: 14 days
The month with the highest number of rainy days is August (17.3 days).
The month with the least rainy days is November (8.8 days).
Average snowfall in September
Siler City, NC
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.97").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Siler City, NC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.3 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
Siler City, 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 5min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 5h and 30min).
Average sunshine days in September
Siler City, NC
- Average sunshine days in September: 14.5 days
The months with the most sunshine days are October and November (20.5 days).
The month with the least sunshine days is July (11.8 days).
Average UV index in September
Siler City, NC
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in September
Siler City, NC
- Average cloud cover in September: 37
The months with the most cloud cover are February, March and December (Cloud cover 42).
The month with the least cloud cover is June (Cloud cover 31).
Average visibility in September
Siler City, NC
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
Siler City, North Carolina, USA
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