September weather forecast
Spencer Mountain, NC

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Weather in September

September, the first month of the autumn in Spencer Mountain, is still a warm month, with an average temperature fluctuating between 62.6°F (17°C) and 82.2°F (27.9°C).

Temperature

The shift from August to September coincides with a small decrease in the average high-temperature, down to a moderately hot 82.2°F (27.9°C) from a hot 88.3°F (31.3°C). In Spencer Mountain, the average low-temperature during the month of September is a comfortable 62.6°F (17°C).

Heat index

For September, the heat index is calculated to be a hot 87.8°F (31°C). Enduring exposure and unrelenting activity might cause a state of weariness, potentially leading to heat cramps.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', melds the effects of warmth and moisture to generate a feeling of heat. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are extremely vital to babies and toddlers. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.

Humidity

In September, the average relative humidity is 73%.

Rainfall

In Spencer Mountain, during September, the rain falls for 13.4 days and regularly aggregates up to 2.2" (56mm) of precipitation. In Spencer Mountain, during the entire year, the rain falls for 158.9 days and collects up to 31.26" (794mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

The average length of the day in September is 12h and 23min.
On the first day of September, sunrise is at 6:57 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 7:09 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 of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.
Note: A maximum daily UV index of 5 during September morphs into the following directions:
Be vigilant - Preventing sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.

Frequently asked questions

What are the temperatures in September?

In September, in Spencer Mountain, the average high-temperature is 82.2°F (27.9°C), and the average low-temperature is 62.6°F (17°C). In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, is calculated to be 87.8°F (31°C).

What is the average humidity in September?

The average relative humidity in September is 73%.

How many days does it rain in September?

In Spencer Mountain, in September, during 13.4 rainfall days, 2.2" (56mm) of precipitation is typically accumulated.

When it does not snow?

In Spencer Mountain, snow does not fall in April through October.

What is the average length of the day in September?

In Spencer Mountain, the average day length in September is 12h and 23min.

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:57 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 7:09 pm EDT.

How long on average sun shines in September?

In Spencer Mountain, the average sunshine duration in September is 8.6h.

How high is the UV index in September?

In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents 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
Spencer Mountain, NC

Average temperature in September - Spencer Mountain, NC
  • Average high temperature in September: 82.2°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: 62.6°F

The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (32.5°F).

Average pressure in September
Spencer Mountain, NC

Average pressure in September - Spencer Mountain, 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
Spencer Mountain, NC

Average wind speed in September - Spencer Mountain, NC
  • Average wind speed in September: 4.9mph

The windiest month (with the highest average wind speed) is April (7.2mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

Average humidity in September
Spencer Mountain, NC

Average humidity in September - Spencer Mountain, 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 (70%).

Average rainfall in September
Spencer Mountain, NC

Average rainfall in September - Spencer Mountain, NC
  • Average rainfall in September: 2.2"

The wettest month (with the highest rainfall) is August (3.43").
The driest month (with the least rainfall) is October (1.93").

Average rainfall days in September
Spencer Mountain, NC

Average rainfall days in September - Spencer Mountain, NC
  • Average rainfall days in September: 13.4 days

The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is November (8.8 days).

Average snowfall in September
Spencer Mountain, NC

Average snowfall in September - Spencer Mountain, NC
  • Average snowfall in September: 0"

The month with the highest snowfall is December (2.01").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Spencer Mountain, NC

Average snowfall days in September - Spencer Mountain, NC
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1.8 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
Spencer Mountain, NC

Average daylight in September / Average sunshine in September - Spencer Mountain, 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 month with the least sunshine is December (Average sunshine: 5h and 18min).

Average sunshine days in September
Spencer Mountain, NC

Average sunshine days in September - Spencer Mountain, NC
  • Average sunshine days in September: 14.9 days

The month with the most sunshine days is October (20.7 days).
The month with the least sunshine days is July (10.6 days).

Average UV index in September
Spencer Mountain, NC

Average UV index in September - Spencer Mountain, 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
Spencer Mountain, NC

Average cloud cover in September - Spencer Mountain, NC
  • Average cloud cover in September: 34

The month with the most cloud cover is December (Cloud cover 43).
The months with the least cloud cover are June and July (Cloud cover 30).

Average visibility in September
Spencer Mountain, NC

Average visibility in September - Spencer Mountain, 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).

Spencer Mountain, North Carolina, USA

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