September weather forecast and climate
Browns Summit, NC

The first month of the autumn, September, is still a warm month in Browns Summit, North Carolina, with average temperature ranging between max 81.1°F (27.3°C) and min 62.2°F (16.8°C).

Temperature

In Browns Summit, the average high-temperature marginally drops, from a hot 87.4°F (30.8°C) in August, to a moderately hot 81.1°F (27.3°C). The average low-temperature, in Browns Summit, is 62.2°F (16.8°C).

Heat index

The average heat index is calculated to 85.8°F (29.9°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'apparent temperature', 'real feel', or 'felt air temperature', is a measure that combines both air temperature and relative humidity into a single value that indicates how hot the weather feels. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (metabolic differences, wind, differences in body mass, height, and shape). Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

In Browns Summit, the average relative humidity is 75%.

Rainfall

In September, in Browns Summit, the rain falls for 13.5 days. Throughout September, 2.2" (56mm) of precipitation is accumulated. In Browns Summit, during the entire year, the rain falls for 155.9 days and collects up to 30.35" (771mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In Browns Summit, the average length of the day in September is 12.4h.

Sunshine

In Browns Summit, the average sunshine is 8.7h.

UV index

In Browns Summit, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The average daily UV index of 5 transform into the following instructions:
Take precautions - Protection against the skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in September in Browns Summit?

In Browns Summit, North Carolina, in September, the average high-temperature is 81.1°F (27.3°C), and the average low-temperature is 62.2°F (16.8°C). In September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), that combines relative humidity and air temperature, is appraised at 85.8°F (29.9°C).

What is the average humidity in September in Browns Summit?

In September, the average relative humidity in Browns Summit, North Carolina, is 75%.

How many days does it rain in September in Browns Summit?

In Browns Summit, during September, the rain falls for 13.5 days and regularly aggregates up to 2.2" (56mm) of precipitation.

When it does not snow in Browns Summit?

In Browns Summit, North Carolina, snow does not fall in April through October.

How many hours of daylight does Browns Summit have in September?

The average length of the day in September in Browns Summit is 12.4h.

How many hours of sunshine does Browns Summit have in September?

In September, the average sunshine in Browns Summit, North Carolina, is 8.7h.

What is the UV index intensity in September in Browns Summit?

In September, the average daily maximum UV index in Browns Summit is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health from unsafe exposure to the Sun's UV rays.
Average temperature in September - Browns Summit, NC
  • Average high temperature in September: 27.3°C

The warmest month (with the highest average high temperature) is July (32.2°C).
The month with the lowest average high temperature is January (8°C).

  • Average low temperature in September: 16.8°C

The month with the highest average low temperature is July (20.3°C).
The coldest month (with the lowest average low temperature) is January (-0.7°C).

Average pressure in September - Browns Summit, NC
  • Average pressure in September: 1017.4mbar

The month with the highest atmospheric pressure is November (1021.2mbar).
The month with the lowest atmospheric pressure is June (1015mbar).

Average wind speed in September - Browns Summit, NC
  • Average wind speed in September: 8.5km/h

The windiest month (with the highest average wind speed) is April (12km/h).
The calmest month (with the lowest average wind speed) is August (7.5km/h).

Average humidity in September - Browns Summit, NC
  • Average humidity in September: 75%

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 - Browns Summit, NC
  • Average rainfall in September: 56mm

The wettest month (with the highest rainfall) is May (89mm).
The driest month (with the least rainfall) is October (46mm).

Average rainfall days in September - Browns Summit, NC
  • Average rainfall days in September: 13.5 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is November (8.9 days).

Average snowfall in September - Browns Summit, NC
  • Average snowfall in September: 0mm

The month with the highest snowfall is January (52mm).
Months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in September - Browns Summit, NC
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (2.7 days).
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 - Browns Summit, NC
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.6h).
The month with the shortest days is December (Average daylight: 9.7h).

  • Average sunshine in September: 8.7h

The month with the most sunshine is July (Average sunshine: 10.7h).
Months with the least sunshine are January and December (Average sunshine: 5.5).

Average sunshine days in September - Browns Summit, NC
  • Average sunshine days in September: 14.8 days

The month with the most sunshine days is October (20.6 days).
The month with the least sunshine days is July (11.4 days).

Average UV index in September - Browns Summit, NC
  • Average UV index in September: 5

Months with the highest UV index are May, June, July and August (UV index 6).
Months with the lowest UV index are January and December (UV index 2).

Average cloud cover in September - Browns Summit, NC
  • Average cloud cover in September: 37

Months with the most cloud cover are February and March (Cloud cover 42).
The month with the least cloud cover is June (Cloud cover 30).

Average visibility in September - Browns Summit, NC
  • Average visibility in September: 8km

Months with the highest visibility are January, February, March, April, May, June, July, August, October, November and December (9km).
The month with the lowest visibility is September (8km).