Dallas
North Carolina, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Dallas, NC

September, the first month of the autumn, in Dallas, is also a moderately hot month, with average temperature fluctuating between 62.6°F (17°C) and 82.2°F (27.9°C).

Temperature

In Dallas, the average high-temperature slightly decreases, from a tropical 88.3°F (31.3°C) in August, to a warm 82.2°F (27.9°C). In Dallas, North Carolina, in September, the average low-temperature is 62.6°F (17°C).

Heat index

The average heat index is evaluated at a tropical 87.6°F (30.9°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. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'real feel', 'feels like', or 'apparent temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. This effect is individual, with diverse people perceiving weather differently for numerous reasons (pregnancy, metabolic differences, clothing), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. 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 Dallas, North Carolina, the average relative humidity is 73%.

Rainfall

In September, in Dallas, the rain falls for 13.4 days. Throughout September, 2.2" (56mm) of precipitation is accumulated. In Dallas, during the entire year, the rain falls for 158.9 days and collects up to 31.26" (794mm) of precipitation.

Snowfall

In Dallas snow does not fall in April through October.

Daylight

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

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 the exposure to the Sun's UV radiation for average individuals.
Note: The average daily UV index of 5 in September 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 Dallas?

In Dallas, North Carolina, in September, the average high-temperature is 82.2°F (27.9°C), and the average low-temperature is 62.6°F (17°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), that factores the actual air temperature with the relative humidity, in September is estimated at 87.6°F (30.9°C).

What is the average humidity in September in Dallas?

The average relative humidity in September in Dallas is 73%.

How many days does it rain in September in Dallas?

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

When it does not snow in Dallas?

In Dallas snow does not fall in April through October.

How many hours of daylight does Dallas have in September?

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

How long on average sun shines in September in Dallas?

The average sunshine in September in Dallas is 8.6h.

What is the UV index intensity in September in Dallas?

In September, the average daily maximum UV index in Dallas is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health from unprotected exposure to the UV radiation.
Average temperature in September - Dallas, 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 humidity in September - Dallas, 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 - Dallas, 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 - Dallas, 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 - Dallas, NC
  • Average snowfall in September: 0"

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

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

The month with the highest number of snowfall days is February (1.8 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 - Dallas, 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: 8.6h

The month with the most sunshine is July (Average sunshine: 10.8h).
The month with the least sunshine is December (Average sunshine: 5.3h).

Average UV index in September - Dallas, 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).