September weather forecast and climate
Roper, NC

September, the first month of the autumn, in Roper, is also a moderately hot month, with temperature in the range of an average low of 65.5°F (18.6°C) and an average high of 81.9°F (27.7°C).

Temperature

In Roper, the average high-temperature in September slightly decreases, from a tropical 87.3°F (30.7°C) in August, to a warm 81.9°F (27.7°C). In September, in Roper, the average low-temperature is 65.5°F (18.6°C).

Heat index

In September, the average heat index is calculated to a hot 88.2°F (31.2°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. 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 'real feel', 'apparent temperature', 'felt air temperature', or 'feels like', 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 (wind, metabolic differences, pregnancy). 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 Roper, the average relative humidity is 79%.

Rainfall

In Roper, during September, the rain falls for 14 days and regularly aggregates up to 2.87" (73mm) of precipitation. In Roper, during the entire year, the rain falls for 165 days and collects up to 28.74" (730mm) of precipitation.

Snowfall

April through November are months without snowfall.

Daylight

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

Sunshine

In September, the average sunshine in Roper, North Carolina, is 9.2h.

UV index

In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 5 in September interpret into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the temperature in September in Roper?

In September, in Roper, the average high-temperature is 81.9°F (27.7°C), and the average low-temperature is 65.5°F (18.6°C). In September, the average heat index (a.k.a. 'apparent temperature', 'feels like'), that combines relative humidity and air temperature, is calculated to 88.2°F (31.2°C).

What is the average humidity in September in Roper?

In Roper, North Carolina, the average relative humidity in September is 79%.

How much does it rain in Roper in September?

In Roper, North Carolina, during September, the rain falls for 14 days and regularly aggregates up to 2.87" (73mm) of precipitation.

When it does not snow in Roper?

In Roper, North Carolina, snow does not fall in April through November.

How many hours of daylight does Roper have in September?

In September, the average length of the day in Roper, North Carolina, is 12.4h.

How many hours of sunshine does Roper have in September?

The average sunshine in September is 9.2h.

What is the UV index reading in September in Roper?

In Roper, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from the exposure to the Sun's UV radiation.
Average temperature in September - Roper, NC
  • Average high temperature in September: 27.7°C

The warmest month (with the highest average high temperature) is July (31.4°C).
The month with the lowest average high temperature is January (9.4°C).

  • Average low temperature in September: 18.6°C

The month with the highest average low temperature is July (21.7°C).
The coldest month (with the lowest average low temperature) is January (1°C).

Average pressure in September - Roper, NC
  • Average pressure in September: 1016.7mbar

The month with the highest atmospheric pressure is November (1020.3mbar).
The month with the lowest atmospheric pressure is June (1014.6mbar).

Average wind speed in September - Roper, NC
  • Average wind speed in September: 10.1km/h

The windiest month (with the highest average wind speed) is April (12.9km/h).
The calmest month (with the lowest average wind speed) is August (8.8km/h).

Average humidity in September - Roper, NC
  • Average humidity in September: 79%

The month with the highest relative humidity is December (80%).
Months with the lowest relative humidity are January and April (76%).

Average rainfall in September - Roper, NC
  • Average rainfall in September: 73mm

The wettest month (with the highest rainfall) is August (82mm).
The driest month (with the least rainfall) is January (44mm).

Average rainfall days in September - Roper, NC
  • Average rainfall days in September: 14 days

The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is October (9.3 days).

Average snowfall in September - Roper, NC
  • Average snowfall in September: 0mm

The month with the highest snowfall is February (27mm).
Months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

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

The month with the highest number of snowfall days is January (1.7 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 - Roper, 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: 9.8h).

  • Average sunshine in September: 9.2h

Months with the most sunshine are June and July (Average sunshine: 10.6h).
The month with the least sunshine is December (Average sunshine: 5.4h).

Average sunshine days in September - Roper, NC
  • Average sunshine days in September: 14.4 days

The month with the most sunshine days is October (20.1 days).
The month with the least sunshine days is July (8.8 days).

Average UV index in September - Roper, 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 - Roper, NC
  • Average cloud cover in September: 37

The month with the most cloud cover is March (Cloud cover 44).
Months with the least cloud cover are June and July (Cloud cover 32).

Average visibility in September - Roper, NC
  • Average visibility in September: 9km

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