September weather forecast
Siloam, NC

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Weather in September

The first month of the autumn, September, is still a warm month in Siloam, North Carolina, with temperature in the range of an average low of 60.1°F (15.6°C) and an average high of 80.6°F (27°C).

Temperature

As August transitions into September, Siloam sees a gentle drop in the average high-temperature, transitioning from a tropical 86.9°F (30.5°C) to a moderately hot 80.6°F (27°C). During September, the average low-temperature is a refreshing 60.1°F (15.6°C).

Heat index

September's mean heat index is estimated at 84.2°F (29°C). Continuous exposure and activity could induce a sense of tiredness and subsequently, heat cramps.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.

Humidity

In September, the average relative humidity is 74%.

Rainfall

The month with the least rainfall is September, when the rain falls for 13.9 days and typically collects 2.01" (51mm) of precipitation.

Snowfall

In Siloam, snow does not fall in April through October.

Daylight

In September, the average length of the day is 12h and 24min.
On the first day of September, sunrise is at 6:54 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 7:06 pm EDT.

Sunshine

The average sunshine in September is 8.6h.

UV index

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.
Note: In September, the maximum UV index of 5 transforms into these recommendations:
Make use of precautions - Suggestions to resist sunburn are communicated. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Updated: Jul 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in September?

An average high-temperature, in September, in Siloam, is 80.6°F (27°C) and the average low-temperature is 60.1°F (15.6°C). In September, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines air temperature and relative humidity, is estimated at 84.2°F (29°C).

What is the average humidity in September?

The average relative humidity in September in Siloam is 74%.

What is the driest month?

September is the month with the least rainfall. Rain falls for 13.9 days and accumulates 2.01" (51mm) of precipitation.

How many days does it rain in September?

In September, the rain falls for 13.9 days. Throughout September, 2.01" (51mm) of precipitation is accumulated.

When it does not snow?

In Siloam, snow does not fall in April through October.

How many hours of daylight does Siloam have in September?

The average day length in September is 12h and 24min.

When is the sunrise / sunset in September in Siloam?

On the first day of September, sunrise is at 6:54 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 7:06 pm EDT.

How many hours of sunshine does Siloam have in September?

The average sunshine duration in September is 8.6h.

What is the UV index intensity in September?

In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Siloam, NC

Average temperature in September - Siloam, NC
  • Average high temperature in September: 80.6°F

The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (45.1°F).

  • Average low temperature in September: 60.1°F

The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).

Average pressure in September
Siloam, NC

Average pressure in September - Siloam, NC
  • Average pressure in September: 30.05"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
Siloam, NC

Average wind speed in September - Siloam, NC
  • Average wind speed in September: 4.7mph

The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).

Average humidity in September
Siloam, NC

Average humidity in September - Siloam, 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 (69%).

Average rainfall in September
Siloam, NC

Average rainfall in September - Siloam, NC
  • Average rainfall in September: 2.01"

The wettest month (with the highest rainfall) is April (3.31").
The driest month (with the least rainfall) is September (2.01").

Average rainfall days in September
Siloam, NC

Average rainfall days in September - Siloam, NC
  • Average rainfall days in September: 13.9 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is November (8.7 days).

Average snowfall in September
Siloam, NC

Average snowfall in September - Siloam, NC
  • Average snowfall in September: 0"

The month with the highest snowfall is December (2.28").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Siloam, NC

Average snowfall days in September - Siloam, NC
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (3.1 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
Siloam, NC

Average daylight in September / Average sunshine in September - Siloam, 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 42min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

Average sunshine days in September
Siloam, NC

Average sunshine days in September - Siloam, NC
  • Average sunshine days in September: 14.5 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is May (11.6 days).

Average UV index in September
Siloam, NC

Average UV index in September - Siloam, 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
Siloam, NC

Average cloud cover in September - Siloam, NC
  • Average cloud cover in September: 34

The month with the most cloud cover is March (Cloud cover 42).
The months with the least cloud cover are June and July (Cloud cover 28).

Average visibility in September
Siloam, NC

Average visibility in September - Siloam, 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).

Siloam, North Carolina, USA

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