September weather forecast and climate
Littleton, NC

Weather in September

September, the first month of the autumn, in Littleton, is still a warm month, with average temperature varying between 63°F (17.2°C) and 81.1°F (27.3°C).

Temperature

In September, the average high-temperature slightly decreases, from a tropical 87.1°F (30.6°C) in August, to a warm 81.1°F (27.3°C). In September, the average low-temperature is 63°F (17.2°C).

Heat index

The average heat index is calculated to a hot 86.2°F (30.1°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. 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', 'apparent temperature', 'feels like', or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (wind, clothing, pregnancy). 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 September, the average relative humidity in Littleton is 77%.

Rainfall

The month with the least rainfall in Littleton is September when the rain falls for 12 days and typically collects 1.85" (47mm) of precipitation.

Snowfall

April through October are months without snowfall in Littleton.

Daylight

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

Sunshine

In Littleton, the average sunshine is 8.7h.

UV index

In Littleton, 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 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.
[Resources]

FAQ

What is the temperature in September in Littleton?

In Littleton, North Carolina, in September, the average high-temperature is 81.1°F (27.3°C), and the average low-temperature is 63°F (17.2°C). In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), that takes the relative humidity and factores it into the air temperature reading, is appraised at 86.2°F (30.1°C).

What is the average humidity in September in Littleton?

The average relative humidity in September in Littleton, North Carolina, is 77%.

How many days does it rain in September in Littleton?

In Littleton, North Carolina, in September, it is raining for 12 days, with typically 1.85" (47mm) of accumulated precipitation.

What is the driest month in Littleton?

The month with the least rainfall is September when the rain falls for 12 days and typically collects 1.85" (47mm) of precipitation.

When it does not snow in Littleton?

In Littleton snow does not fall in April through October.

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

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

How many hours of sunshine does Littleton have in September?

In Littleton, the average sunshine in September is 8.7h.

What is the UV index reading in September in Littleton?

In September, the average daily maximum UV index in Littleton is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from the exposure to the Sun's UV rays.

Average temperature in September
Littleton, NC

Average temperature in September - Littleton, NC
  • Average high temperature in September: 81.1°F

The warmest month (with the highest average high temperature) is July (89.1°F).
The month with the lowest average high temperature is January (46°F).

  • Average low temperature in September: 63°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (31.1°F).

[Resources]

Average pressure in September
Littleton, NC

Average pressure in September - Littleton, NC
  • Average pressure in September: 30.03"

The month with the highest atmospheric pressure is November (30.14").
The month with the lowest atmospheric pressure is June (29.96").

[Resources]

Average wind speed in September
Littleton, NC

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

The windiest month (with the highest average wind speed) is April (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

[Resources]

Average humidity in September
Littleton, NC

Average humidity in September - Littleton, NC
  • Average humidity in September: 77%

Months with the highest relative humidity are May and December (78%).
The month with the lowest relative humidity is July (73%).

[Resources]

Average rainfall in September
Littleton, NC

Average rainfall in September - Littleton, NC
  • Average rainfall in September: 1.85"

The wettest month (with the highest rainfall) is August (3.03").
The driest month (with the least rainfall) is September (1.85").

[Resources]

Average rainfall days in September
Littleton, NC

Average rainfall days in September - Littleton, NC
  • Average rainfall days in September: 12 days

The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is November (9.6 days).

[Resources]

Average snowfall in September
Littleton, NC

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

The month with the highest snowfall is February (1.77").
Months with the least snowfall are April, May, June, July, August, September and October (0").

[Resources]

Average snowfall days in September
Littleton, NC

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

The month with the highest number of snowfall days is February (3 days).
Months with the least snowfall days are April, May, June, July, August, September and October (0 days).

[Resources]

Average daylight in September /
Average sunshine in September
Littleton, NC

Average daylight in September / Average sunshine in September - Littleton, 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

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

[Resources]

Average sunshine days in September
Littleton, NC

Average sunshine days in September - Littleton, NC
  • Average sunshine days in September: 16.3 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is May (11.3 days).

[Resources]

Average UV index in September
Littleton, NC

Average UV index in September - Littleton, 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).

[Resources]

Average cloud cover in September
Littleton, NC

Average cloud cover in September - Littleton, NC
  • Average cloud cover in September: 39

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).

[Resources]

Average visibility in September
Littleton, NC

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

Months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).

[Resources]