September weather forecast and climate
Marston, NC

The first month of the autumn, September, is still a warm month in Marston, North Carolina, with temperature in the range of an average high of 82.8°F (28.2°C) and an average low of 65.1°F (18.4°C).

Temperature

In September, the average high-temperature slightly decreases, from a hot 88.3°F (31.3°C) in August, to a warm 82.8°F (28.2°C). The average low-temperature, in Marston, is 65.1°F (18.4°C).

Heat index

The average heat index is evaluated at a tropical 89.2°F (31.8°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'felt air temperature', 'apparent temperature', or 'real feel', is a measure of how hot it feels when the actual air humidity is factored in. Additional factors like activity, metabolic differences, clothing, and pregnancy affect individual temperature impact. 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 especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

In Marston, North Carolina, the average relative humidity is 75%.

Rainfall

In Marston, during September, the rain falls for 14.5 days and regularly aggregates up to 3.23" (82mm) of precipitation. In Marston, during the entire year, the rain falls for 168.8 days and collects up to 35.55" (903mm) of precipitation.

Snowfall

In Marston snow does not fall in April through October.

Daylight

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

Sunshine

The average sunshine is 8.9h.

UV index

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to the UV radiation for the average person.
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. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the temperature in September in Marston?

The average high-temperature, in September, in Marston, is 82.8°F (28.2°C), while the average low-temperature is 65.1°F (18.4°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), that combines relative humidity and air temperature, in September is evaluated at 89.2°F (31.8°C).

What is the average humidity in September in Marston?

In September, the average relative humidity in Marston is 75%.

How many days does it rain in September in Marston?

In Marston, in September, during 14.5 rainfall days, 3.23" (82mm) of precipitation is typically accumulated.

When it does not snow in Marston?

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

What is the average length of the day in September in Marston?

The average length of the day in September in Marston, North Carolina, is 12.4h.

How long on average sun shines in September in Marston?

The average sunshine in September is 8.9h.

What is the UV index intensity in September in Marston?

The average daily maximum UV index in September in Marston is 5. A UV Index estimate of 3 to 5 represents a medium health risk from unprotected exposure to the UV radiation.
Average temperature in September - Marston, NC
  • Average high temperature in September: 82.8°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 (50.2°F).

  • Average low temperature in September: 65.1°F

The month with the highest average low temperature is July (71.4°F).
The coldest month (with the lowest average low temperature) is January (34°F).

Average pressure in September - Marston, NC
  • Average pressure in September: 30.02"

The month with the highest atmospheric pressure is November (30.15").
The month with the lowest atmospheric pressure is June (29.96").

Average wind speed in September - Marston, NC
  • Average wind speed in September: 6mph

The windiest month (with the highest average wind speed) is April (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

Average humidity in September - Marston, NC
  • Average humidity in September: 75%

The month with the highest relative humidity is December (76%).
Months with the lowest relative humidity are June and July (72%).

Average rainfall in September - Marston, NC
  • Average rainfall in September: 3.23"

The wettest month (with the highest rainfall) is August (4.06").
The driest months (with the least rainfall) are January and October (2.13").

Average rainfall days in September - Marston, NC
  • Average rainfall days in September: 14.5 days

The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is November (9.1 days).

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

The month with the highest snowfall is February (0.94").
Months with the least snowfall are April, May, June, July, August, September and October (0").

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

The month with the highest number of snowfall days is February (1.2 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 - Marston, NC
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.5h).
The month with the shortest days is December (Average daylight: 9.8h).

  • Average sunshine in September: 8.9h

The month with the most sunshine is July (Average sunshine: 10.7h).
Months with the least sunshine are January and December (Average sunshine: 5.3).

Average sunshine days in September - Marston, NC
  • Average sunshine days in September: 14.6 days

The month with the most sunshine days is November (20 days).
The month with the least sunshine days is July (9.8 days).

Average UV index in September - Marston, NC
  • Average UV index in September: 5

Months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is January (UV index 2).

Average cloud cover in September - Marston, NC
  • Average cloud cover in September: 36

Months with the most cloud cover are February, March and December (Cloud cover 43).
The month with the least cloud cover is June (Cloud cover 31).

Average visibility in September - Marston, NC
  • Average visibility in September: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).